WO2014082407A1 - Method and system for displaying video monitoring image - Google Patents

Method and system for displaying video monitoring image Download PDF

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Publication number
WO2014082407A1
WO2014082407A1 PCT/CN2013/073798 CN2013073798W WO2014082407A1 WO 2014082407 A1 WO2014082407 A1 WO 2014082407A1 CN 2013073798 W CN2013073798 W CN 2013073798W WO 2014082407 A1 WO2014082407 A1 WO 2014082407A1
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WIPO (PCT)
Prior art keywords
image
camera
video surveillance
specified camera
specified
Prior art date
Application number
PCT/CN2013/073798
Other languages
French (fr)
Chinese (zh)
Inventor
常海
宋立岩
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2014082407A1 publication Critical patent/WO2014082407A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/4508—Management of client data or end-user data
    • H04N21/4524—Management of client data or end-user data involving the geographical location of the client

Definitions

  • the present invention relates to the field of monitoring technologies, and in particular, to a method and system for displaying a video surveillance image. Background technique
  • the video surveillance system is the physical basis for real-time monitoring of key departments or important places in various industries.
  • the management department can obtain effective data, image or sound information, and timely monitor and remember the process of sudden abnormal events to provide Efficient, timely command, etc.
  • the video surveillance system consists of five parts: camera, transmission, control, display, and record registration.
  • the surveillance camera transmits the video image to the control panel through the coaxial video cable, and the control host distributes the video signal to each monitor and recording device, and simultaneously records the voice signal to be transmitted into the recorder.
  • a method and a system for displaying a video surveillance image are provided, which can simplify the process of obtaining an image of a designated surveillance camera, and improve efficiency.
  • a method for displaying a video surveillance image including:
  • the video surveillance image is displayed.
  • the method further includes: Comparing the video surveillance image of the specified camera with the pre-stored captured image of the geographic location of the specified camera to obtain a matching geographic identifier; And loading identification information corresponding to the matched geographical identifier in the captured image of the geographic location of the specified camera to the matched geographical identifier in the video surveillance image of the specified camera;
  • the displaying the video surveillance image includes:
  • a video surveillance image of the specified camera loaded with identification information is displayed.
  • the acquiring a video surveillance image of the specified camera in the video surveillance system includes:
  • the adjustment image is a video surveillance image obtained by the video surveillance system after performing an adjustment operation on the designated camera according to the operation instruction.
  • the receiving an operation instruction for the specified camera includes Receiving a left and right drag operation instruction for the specified camera; the acquiring the adjusted image of the specified camera, comprising: acquiring an adjustment image of a horizontal direction range of the specified camera; or
  • the receiving an operation instruction for the specified camera comprising: receiving an up and down drag operation instruction for the specified camera; and acquiring the adjusted image of the specified camera, comprising: acquiring a vertical direction view of the specified camera Adjustment image of the range; or,
  • the receiving an operation instruction for the specified camera comprising: receiving a double-click operation instruction for the specified camera; and acquiring the adjustment image of the specified camera, comprising: acquiring an adjusted image of the specified camera after focusing .
  • Displaying the video surveillance image includes:
  • the video surveillance image is displayed by a fan-shaped area formed by monitoring the distance as a radius from the true north direction.
  • a display system for video surveillance images including:
  • a region determining unit configured to determine a geographic coordinate of the selected region in the electronic map
  • a camera determining unit configured to compare a geographic coordinate of the selected area determined by the area determining unit with a geographical coordinate of a plurality of cameras stored in advance, and determine a camera located in the selected area as a designated camera;
  • An image acquiring unit configured to acquire a specified camera determined by the camera determining unit in the video monitoring system Video surveillance image
  • an image display unit configured to display a video surveillance image acquired by the image acquisition unit.
  • the method further includes:
  • An image comparison unit configured to: before the image acquisition unit acquires the video surveillance image, the image display unit displays the video surveillance image of the specified camera and the pre-stored specified before displaying the video surveillance image The captured images of the geographic location of the camera are compared to obtain a matching geographical indication;
  • an information loading unit configured to: load identifier information corresponding to the matched geographical identifier in the captured image of the geographic location of the specified camera to the matched geographical identifier in the video surveillance image of the specified camera;
  • the image display unit is specifically configured to display a video surveillance image of the specified camera loaded with the identification information.
  • the image acquiring unit includes:
  • An instruction receiving subunit configured to receive an operation instruction for the specified camera
  • an image acquisition subunit configured to acquire an adjustment image of the specified camera, where the adjustment image is a video surveillance image obtained by the video surveillance system after performing an adjustment operation on the specified camera according to the operation instruction.
  • the instruction receiving sub-unit specifically for receiving a pair And a left and right drag operation instruction of the specified camera; receiving an up and down drag operation instruction for the specified camera; receiving a double click operation instruction for the specified camera;
  • the image acquisition subunit is configured to: when the instruction receiving subunit receives a left and right drag operation instruction for the specified camera, acquire an adjustment image of a horizontal direction range of the specified camera; And acquiring, by the instruction receiving subunit, an adjustment image of a vertical direction range of the specified camera when receiving an up and down drag operation instruction for the specified camera; and when the instruction receiving subunit receives a double click on the specified camera When the operation command is executed, the adjusted image of the specified camera is obtained.
  • the display unit is specifically configured to use the horizontal camera angle of the specified camera as an apex with the coordinates of the specified camera as the apex, and the horizontal installation direction vector of the specified camera as the The angle between the angle bisector of the angle and the true north direction, and the video surveillance image is displayed by a sector area formed by monitoring the distance as a radius.
  • the designated camera by combining the electronic map system and the video monitoring system, when the video surveillance image of the specified camera is retrieved, the designated camera can be directly selected in the electronic map, and the video surveillance of the designated camera is obtained in the video monitoring system.
  • the image is displayed.
  • the method does not need to search for a specified camera layer by layer in a huge video monitoring system, and does not need to switch back and forth multiple times in the video monitoring screen.
  • the above method can quickly locate a specified camera and realize image display, simplifying obtaining a video image of a specified camera. Process that increases efficiency.
  • FIG. 1 is a flowchart of a method for displaying a video surveillance image according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for loading information of a video surveillance image according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for acquiring a video surveillance image of a specified camera according to an embodiment of the present invention
  • FIGS. 4a-4d are schematic diagrams of parameters of a specified camera according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a video surveillance image display system according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of another video surveillance image display system according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of another video surveillance image display system according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a video display image display apparatus according to an embodiment of the present invention. detailed description
  • FIG. 1 a flowchart of a method for displaying a video surveillance image according to an embodiment of the present invention is shown.
  • the method can include:
  • Step 101 Determine geographic coordinates of the selected area in the electronic map.
  • the selection area can be selected on the electronic map by using a mouse, and the geographical coordinate area of the selection area can be selected according to the frame coordinates of the mouse on the screen (for example, the screen coordinates when the left mouse button is pressed) and the end point.
  • the coordinates for example, the screen coordinates when the left mouse button is raised
  • the position of the electronic map on the screen the scale calculates the geographic coordinates of the selected area.
  • the way to determine the selection area and to determine the selection There are various ways of geographical coordinate area of the area, for example, a circular area determined by using a touch screen position coordinate as a center coordinate and a preset length as a radius, and calculating the geographical area of the selected area according to the position and scale of the electronic map according to the electronic map. coordinate.
  • Step 102 Compare the geographic coordinate area of the selected area with the geographical coordinates of the plurality of cameras stored in advance, and determine a camera located in the selected area as the designated camera.
  • the geographic coordinates of the multiple cameras in the video surveillance system may be stored in the database of the electronic map system, specifically, the three-dimensional geographic coordinates (latitude, dimension, height) of the camera may be acquired, and then the camera in the electronic map Add this camera to the layer.
  • the geographic coordinates of the selected area in the upper step are compared with the geographic coordinates of the plurality of cameras, the camera located in the selected area is obtained, and the camera is used as the designated camera.
  • Step 103 Acquire a video surveillance image of a specified camera in the video surveillance system.
  • the electronic map system is fitted with the video monitoring system, and the cameras on the electronic map can be directly linked to the video image of the camera in the video monitoring system.
  • the camera in the selected area in the previous step After determining the camera in the selected area in the previous step, it can directly link to the video surveillance system, and obtain the video image of the camera in the video surveillance system for display. Specifically, it can be displayed on the electronic map.
  • Step 104 Display a video surveillance image.
  • the designated camera by combining the electronic map system and the video monitoring system, when the video surveillance image of the specified camera is retrieved, the designated camera can be directly selected in the electronic map, and the video surveillance of the designated camera is obtained in the video monitoring system.
  • the image is displayed.
  • the method does not need to search for a specified camera layer by layer in a huge video monitoring system, and does not need to switch back and forth multiple times in the video monitoring screen.
  • the above method can quickly locate a specified camera and realize image display, simplifying obtaining a video image of a specified camera. Process that increases efficiency.
  • the method may further include an information loading process for the video surveillance image, as shown in the figure. As shown in 2, the method can include:
  • Step 201 Compare the video surveillance image of the specified camera with the pre-stored captured image of the geographic location of the specified camera to obtain a matching geographic identifier.
  • the captured image may be a captured image at different angles of the same geographic location, and the different angles may be determined according to the monitoring angles of the cameras, and may also be Includes captured images of the same geographic location at different scales, the difference
  • the zoom ratio can be determined based on the zoom ratio monitored by each camera.
  • the image is compared with the captured image stored in the electronic map database at the same scale and/or the same shooting angle.
  • the similarity threshold may be set, and if the threshold is greater than or equal to the threshold The two images are considered to match, and the specific image matching process is similar to the prior art.
  • the matching geographical indications in the two images are further obtained.
  • Step 202 Load the identification information corresponding to the matching geographical identifier in the captured image of the geographic location of the specified camera to the matching geographic identifier in the video surveillance image of the specified camera.
  • the identification information of the geographical identifier matched in the previous step is loaded to the video surveillance of the designated camera. In the image.
  • the video surveillance image of the specified camera loaded with the identification information corresponding to the matching geographical indication is displayed.
  • a transparent layer may be formed on the interface of the video surveillance image to obtain an outline of the identified geographical indication, such as a contour of the building, and then a description box is added to the contour, and the acquired identification information is displayed on the The description box on the transparent layer.
  • the vehicle information in the image can also be video-monitored, the vehicle identification and the license plate number are recognized by the vehicle identification technology and the license plate recognition technology, the vehicle database is queried by the license plate number, and the vehicle model and the vehicle owner information are obtained. Add a description box and display the information on the transparent layer.
  • the image matching and information loading in the embodiment of the invention realize the display of the geographical indication information in the video image, thereby enriching the information of the video surveillance image, and conveniently positioning the image content according to the geographical identification information displayed in the image.
  • the process of acquiring the video surveillance image of the specified camera in the video surveillance system may further include:
  • Step 301 Receive an operation instruction for the specified camera.
  • the operation action and the corresponding operation instruction may be stored in the video monitoring system or the electronic map system in advance, and the action of the external device or the like may be acquired and the operation instruction corresponding to the action may be recognized, for example:
  • Receiving a left and right drag operation instruction for the specified camera for example, determining a left and right drag operation instruction for the specified camera according to the left and right drag of the mouse; or Receiving an up and down drag operation instruction for the specified camera, for example, determining an up and down drag operation instruction for the specified camera according to the up and down drag of the mouse; or
  • a double-click operation instruction for the specified camera is received, for example, a focus adjustment operation for the designated camera is determined according to a double-click action of the mouse.
  • Step 302 Acquire an adjustment image of the specified camera, and adjust the image as a video surveillance image obtained by the video surveillance system after performing an adjustment operation on the designated camera according to the operation instruction.
  • the instruction can be transmitted to the video monitoring system, and the video monitoring system performs corresponding operations on the designated camera.
  • the remote control of the specified camera can be realized through the operation control, thereby realizing the operation of the video surveillance image. Further, in this step, an adjustment image of the specified camera is obtained.
  • the embodiment of the invention realizes the control and adjustment of the video surveillance image by recognizing the operation action.
  • the coordinates of the specified camera on the electronic map may be used as a vertex to specify the horizontal angle of view of the camera as an angle to specify the horizontal installation direction vector of the camera as the direction. That is, the horizontal installation direction vector of the specified camera is used as the angle between the angle bisector of the above angle and the north direction, and the video surveillance image is displayed by the sector area formed by the monitoring distance radius.
  • the horizontal mounting direction vector of the specified camera is ⁇ , which is the angle between the specified camera and the true north direction.
  • the focal length of the specified camera is f
  • the horizontal field of view ⁇ of the specified camera can be calculated based on the focal length f and the width w of the specified camera CCD.
  • the coordinates of the specified camera on the electronic map may be vertices, and the horizontal angle of view of the specified camera may be used as the angle.
  • the horizontal installation direction vector of the camera is used as an angle between the angle bisector of the angle and the north direction, and the video surveillance image is displayed in a sector area formed by monitoring the radius.
  • the current focus value and relative are obtained from the camera.
  • FIG. 5 is a schematic structural diagram of a video surveillance image display system according to an embodiment of the present invention.
  • the system can include:
  • An area determining unit 501 configured to determine geographic coordinates of the selected area in the electronic map
  • the camera determining unit 502 is configured to compare the geographic coordinates of the selected area determined by the area determining unit 501 with the geographical coordinates of the plurality of cameras stored in advance, and determine a camera located in the selected area as the designated camera;
  • the image obtaining unit 503 is configured to acquire a video surveillance image of the specified camera determined by the camera determining unit 502 in the video monitoring system;
  • the image display unit 504 is configured to display the video surveillance image acquired by the image acquisition unit 503.
  • the system combines the electronic map system with the video monitoring system, and when the video surveillance image of the specified camera is retrieved, the designated camera can be directly selected in the electronic map, and the designated camera is obtained in the video monitoring system.
  • the video surveillance image is displayed.
  • the system does not need to search for a specified camera layer by layer in a huge video surveillance system, and does not need to switch back and forth multiple times in the video surveillance picture.
  • the specified camera can be quickly positioned and image display can be realized, and the video image of the specified camera can be simplified. The process has improved efficiency.
  • FIG. 6 is a schematic structural diagram of another video surveillance image display system according to an embodiment of the present invention.
  • the system may include, in addition to the area determining unit 601, the camera determining unit 602, the image obtaining unit 603, and the image display unit 604, the following:
  • the image comparison unit 605 is configured to: after the image acquisition unit 603 acquires the video surveillance image, before the image display unit 604 displays the video surveillance image, the video surveillance image of the specified camera and the pre-stored specified geographic location of the camera Take images for comparison and obtain matching geographical indications;
  • the information loading unit 606 is configured to load identifier information corresponding to the matched geographical identifier in the captured image of the geographic location where the specified camera is located, into the matched geographical identifier in the video surveillance image of the specified camera. .
  • the image display unit 604 is specifically configured to display a video surveillance image of the specified camera loaded with the identification information.
  • the system realizes loading and displaying of the geographic identification information in the video image through image matching and information loading, thereby enriching the information of the video surveillance image, and can conveniently display the image according to the image.
  • the identification information is used to locate the image content.
  • FIG. 7 is a schematic structural diagram of another video surveillance image display system according to an embodiment of the present invention.
  • the system may include an area determining unit 701, a camera determining unit 702, an image obtaining unit 703, and an image display unit 704.
  • the image obtaining unit 703 may further include:
  • the instruction receiving subunit 7031 is configured to receive an operation instruction for the specified camera.
  • the instruction receiving subunit 7031 is specifically configured to receive a left and right drag operation instruction for the specified camera; receive an up and down drag operation instruction for the specified camera; and receive a double click operation instruction for the specified camera.
  • the image acquisition sub-unit 7032 is configured to acquire an adjustment image of the specified camera, where the adjustment image is a video surveillance image obtained by the video surveillance system after performing an adjustment operation on the designated camera according to the operation instruction.
  • the image acquisition sub-unit 7032 is configured to: when the instruction receiving sub-unit receives a left-right drag operation instruction for the specified camera, acquire an adjustment image of a horizontal direction range of the specified camera; Receiving, by the receiving subunit, an adjustment image of a vertical direction range of the specified camera when receiving an up and down drag operation instruction for the specified camera; and receiving, by the instruction receiving subunit, a double click operation on the specified camera When the command is made, the adjusted image of the specified camera is obtained.
  • the system realizes the control and adjustment of the video surveillance image by recognizing the operation action.
  • the display unit may be further configured to use the coordinates of the specified camera as the vertices on the electronic map as the apex of the specified camera, and the angle of the horizontal field of view of the specified camera as the angle of the specified camera.
  • the horizontal mounting direction vector is used as an angle between the angle bisector of the included angle and the true north direction, and the video surveillance image is displayed by a sector area formed by monitoring the distance as a radius.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented Row.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the embodiments of the invention further provide a block diagram of a device for carrying out various embodiments of the above method of the invention.
  • the device can be embedded or itself a microprocessor computer, such as a general purpose computer, a custom machine, a mobile terminal or a tablet.
  • the device includes: a storage device 801, a processor 802, and a display 803.
  • the storage device 801 is used to store a database of electronic maps, as well as code and instructions.
  • the processor 802 is coupled to the memory 801 to implement a method of: determining geographic coordinates of a selected area in an electronic map; and pre-storing the geographic coordinates of the selected area with a database of the electronic map The geographic coordinates of the camera are compared, a camera located in the selected area is determined as a designated camera; a video surveillance image of the specified camera in the video surveillance system is acquired; and the display 803 is controlled to display the video surveillance image.
  • the processor may be: a central processing unit (CPU), an application specific integrated circuit (ASIC), a digital signal processor (DSP), and an off-the-shelf Program gate array (FPGA) or other programmable logic device.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • DSP digital signal processor
  • FPGA off-the-shelf Program gate array
  • the storage device may be any available media that the computer can access, including but not limited to: read only memory (ROM), random access memory (RAM), or A storage medium familiar to the art, such as disk storage, flash memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • ROM read only memory
  • RAM random access memory
  • the storage device is operative to provide instructions and data to the processing unit, and the processing unit is coupled via a bus.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including a number of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute the present All or part of the steps of the method described in the various embodiments are invented.
  • the foregoing storage medium includes: u disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, and the like, which can store program code.

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Abstract

Disclosed are a method and system for displaying a video monitoring image. The method includes: determining geographic coordinates of a selected region in an electronic map; comparing the geographic coordinates of the selected region with pre-stored geographic coordinates of a plurality of cameras, and determining the camera located in the selected region as a designated camera; acquiring a video monitoring image of the designated camera in a video monitoring system; and displaying the video monitoring image. By combining an electronic map system with a video monitoring system, the embodiments of the present invention can directly select a designated camera in an electronic map when taking a video monitoring image of the designated camera, and acquire the video monitoring image of the designated camera in the video monitoring system to display. The method can quickly locate a designated camera and realize image display, simplifying the process for acquiring a video image of the designated camera, and improving the efficiency.

Description

一种视频监控图像的显示方法及***  Method and system for displaying video surveillance image
技术领域 本发明涉及监控技术领域， 特别是涉及一种视频监控图像的显示方法及***。 背景技术 TECHNICAL FIELD The present invention relates to the field of monitoring technologies, and in particular, to a method and system for displaying a video surveillance image. Background technique
视频监控***是各行业重点部门或重要场所进行实时监控的物理基础，管理部门 可通过它获得有效数据、 图像或声音信息，对突发性异常事件的过程进行及时的监视 和记忆， 用以提供高效、 及时地指挥等。  The video surveillance system is the physical basis for real-time monitoring of key departments or important places in various industries. The management department can obtain effective data, image or sound information, and timely monitor and remember the process of sudden abnormal events to provide Efficient, timely command, etc.
视频监控***由摄像、 传输、 控制、 显示、 记录登记五大部分组成。 监控摄像机 通过同轴视频电缆将视频图像传输到控制主机，控制主机再将视频信号分配到各监视 器及录像设备， 同时可将需要传输的语音信号同步录入到录像机内。  The video surveillance system consists of five parts: camera, transmission, control, display, and record registration. The surveillance camera transmits the video image to the control panel through the coaxial video cable, and the control host distributes the video signal to each monitor and recording device, and simultaneously records the voice signal to be transmitted into the recorder.
在现有的视频监控***中， 尤其在具有大量监控摄像机的监控***中， 例如交通 指挥部门的监控***，在调取指定监控摄像机的图像时需要经过查找和多次切换， 效 率较低。 发明内容  In the existing video surveillance system, especially in a surveillance system with a large number of surveillance cameras, such as the traffic control department's surveillance system, it is necessary to go through the search and multiple handovers when capturing the images of the designated surveillance cameras, and the efficiency is low. Summary of the invention
本发明实施例中提供了一种视频监控图像的显示方法及***，能够简化获得指定 监控摄像机图像的过程， 提高效率。  In the embodiment of the present invention, a method and a system for displaying a video surveillance image are provided, which can simplify the process of obtaining an image of a designated surveillance camera, and improve efficiency.
为了解决上述技术问题， 本发明实施例公开了如下技术方案：  In order to solve the above technical problem, the embodiment of the present invention discloses the following technical solutions:
一方面， 提供一种视频监控图像的显示方法， 包括：  In one aspect, a method for displaying a video surveillance image is provided, including:
在电子地图中确定选择区域的地理坐标；  Determining the geographic coordinates of the selected area in the electronic map;
将所述选择区域的地理坐标与预先存储的多个摄像机的地理坐标进行比对，确定 位于所述选择区域的摄像机， 作为指定摄像机；  Comparing the geographic coordinates of the selected area with the geographical coordinates of the plurality of cameras stored in advance, and determining a camera located in the selected area as a designated camera;
获取视频监控***中所述指定摄像机的视频监控图像；  Obtaining a video surveillance image of the specified camera in the video surveillance system;
显示所述视频监控图像。  The video surveillance image is displayed.
结合上述一方面， 在第一种可能的实现方式中， 在所述获取视频监控***中所述 指定摄像机的视频监控图像之后,所述显示所述视频监控图像之前， 所述方法还包括： 将所述指定摄像机的视频监控图像与预存储的所述指定摄像机所在地理位置的 拍摄图像进行对比， 获得相匹配的地理标识； 将所述指定摄像机所在地理位置的拍摄图像中所述相匹配的地理标识所对应的 标识信息加载至所述指定摄像机的视频监控图像中所述相匹配的地理标识处； With reference to the above aspect, in a first possible implementation manner, after the video surveillance image of the specified camera in the acquiring video surveillance system, before the displaying the video surveillance image, the method further includes: Comparing the video surveillance image of the specified camera with the pre-stored captured image of the geographic location of the specified camera to obtain a matching geographic identifier; And loading identification information corresponding to the matched geographical identifier in the captured image of the geographic location of the specified camera to the matched geographical identifier in the video surveillance image of the specified camera;
所述显示所述视频监控图像， 包括：  The displaying the video surveillance image includes:
显示加载有标识信息的所述指定摄像机的视频监控图像。  A video surveillance image of the specified camera loaded with identification information is displayed.
结合上述一方面， 和 /或第一种可能的实现方式， 在第二种可能的实现方式中， 所述获取视频监控***中所述指定摄像机的视频监控图像， 包括：  With reference to the foregoing aspect, and/or the first possible implementation manner, in a second possible implementation manner, the acquiring a video surveillance image of the specified camera in the video surveillance system includes:
接收对所述指定摄像机的操作指令；  Receiving an operation instruction for the specified camera;
获取所述指定摄像机的调整图像，所述调整图像为所述视频监控***根据所述操 作指令对所述指定摄像机进行调整操作后所获得的视频监控图像。  Obtaining an adjustment image of the specified camera, where the adjustment image is a video surveillance image obtained by the video surveillance system after performing an adjustment operation on the designated camera according to the operation instruction.
结合上述一方面， 和 /或第一种可能的实现方式， 和 /或第二种可能的实现方式， 在第三种可能的实现方式中， 所述接收对所述指定摄像机的操作指令， 包括： 接收对 所述指定摄像机的左右拖动操作指令； 所述获取所述指定摄像机的调整图像， 包括： 获取所述指定摄像机的水平方向视域范围的调整图像； 或者，  With reference to the foregoing aspect, and/or the first possible implementation manner, and/or the second possible implementation manner, in a third possible implementation manner, the receiving an operation instruction for the specified camera includes Receiving a left and right drag operation instruction for the specified camera; the acquiring the adjusted image of the specified camera, comprising: acquiring an adjustment image of a horizontal direction range of the specified camera; or
所述接收对所述指定摄像机的操作指令， 包括： 接收对所述指定摄像机的上下拖 动操作指令； 所述获取所述指定摄像机的调整图像， 包括： 获取所述指定摄像机的垂 直方向视域范围的调整图像； 或者，  The receiving an operation instruction for the specified camera, comprising: receiving an up and down drag operation instruction for the specified camera; and acquiring the adjusted image of the specified camera, comprising: acquiring a vertical direction view of the specified camera Adjustment image of the range; or,
所述接收对所述指定摄像机的操作指令， 包括： 接收对所述指定摄像机的双击操 作指令； 所述获取所述指定摄像机的调整图像， 包括： 获取所述指定摄像机的调焦后 的调整图像。  The receiving an operation instruction for the specified camera, comprising: receiving a double-click operation instruction for the specified camera; and acquiring the adjustment image of the specified camera, comprising: acquiring an adjusted image of the specified camera after focusing .
结合上述一方面， 和 /或第一种可能的实现方式， 和 /或第二种可能的实现方式， 和 /或第三种可能的实现方式， 在第四种可能的实现方式中， 所述显示所述视频监控 图像包括：  With reference to the foregoing aspect, and/or the first possible implementation manner, and/or the second possible implementation manner, and/or the third possible implementation manner, in a fourth possible implementation manner, Displaying the video surveillance image includes:
在以所述指定摄像机在所述电子地图上的坐标为顶点，以所述指定摄像机的水平 视场角为夹角，以所述指定摄像机的水平安装方向向量作为所述夹角的角平分线与正 北方向的夹角， 以监控距离为半径所形成的扇形区域显示所述视频监控图像。  Taking the coordinates of the specified camera on the electronic map as a vertex, the angle of the horizontal field of view of the specified camera as an angle, and the horizontal mounting direction vector of the specified camera as the angle bisector of the angle The video surveillance image is displayed by a fan-shaped area formed by monitoring the distance as a radius from the true north direction.
另一方面， 还提供一种视频监控图像的显示***， 包括：  In another aspect, a display system for video surveillance images is provided, including:
区域确定单元， 用于在电子地图中确定选择区域的地理坐标；  a region determining unit, configured to determine a geographic coordinate of the selected region in the electronic map;
摄像机确定单元，用于将所述区域确定单元确定的选择区域的地理坐标与预先存 储的多个摄像机的地理坐标进行比对，确定位于所述选择区域的摄像机， 作为指定摄 像机；  a camera determining unit, configured to compare a geographic coordinate of the selected area determined by the area determining unit with a geographical coordinate of a plurality of cameras stored in advance, and determine a camera located in the selected area as a designated camera;
图像获取单元，用于获取视频监控***中所述摄像机确定单元确定的指定摄像机 的视频监控图像； An image acquiring unit, configured to acquire a specified camera determined by the camera determining unit in the video monitoring system Video surveillance image;
图像显示单元， 用于显示所述图像获取单元获取的视频监控图像。  And an image display unit, configured to display a video surveillance image acquired by the image acquisition unit.
结合上述另一方面， 在第一种可能的实现方式中， 还包括：  In combination with the above other aspects, in a first possible implementation manner, the method further includes:
图像比对单元， 用于在所述图像获取单元获取所述视频监控图像之后， 所述图像 显示单元显示所述视频监控图像之前，将所述指定摄像机的视频监控图像与预存储的 所述指定摄像机所在地理位置的拍摄图像进行对比， 获得相匹配的地理标识；  An image comparison unit, configured to: before the image acquisition unit acquires the video surveillance image, the image display unit displays the video surveillance image of the specified camera and the pre-stored specified before displaying the video surveillance image The captured images of the geographic location of the camera are compared to obtain a matching geographical indication;
信息加载单元，用于将所述指定摄像机所在地理位置的拍摄图像中所述相匹配的 地理标识所对应的标识信息加载至所述指定摄像机的视频监控图像中所述相匹配的 地理标识处；  And an information loading unit, configured to: load identifier information corresponding to the matched geographical identifier in the captured image of the geographic location of the specified camera to the matched geographical identifier in the video surveillance image of the specified camera;
所述图像显示单元，具体用于显示加载有标识信息的所述指定摄像机的视频监控 图像。  The image display unit is specifically configured to display a video surveillance image of the specified camera loaded with the identification information.
结合上述另一方面， 和 /或第一种可能的实现方式， 在第二种可能的实现方式中， 所述图像获取单元包括：  In combination with the above-mentioned another aspect, and/or the first possible implementation manner, in a second possible implementation manner, the image acquiring unit includes:
指令接收子单元， 用于接收对所述指定摄像机的操作指令；  An instruction receiving subunit, configured to receive an operation instruction for the specified camera;
图像获取子单元， 用于获取所述指定摄像机的调整图像， 所述调整图像为所述视 频监控***根据所述操作指令对所述指定摄像机进行调整操作后所获得的视频监控 图像。  And an image acquisition subunit, configured to acquire an adjustment image of the specified camera, where the adjustment image is a video surveillance image obtained by the video surveillance system after performing an adjustment operation on the specified camera according to the operation instruction.
结合上述另一方面，和 /或第一种可能的实现方式，和 /或第二种可能的实现方式， 在第三种可能的实现方式中，所述指令接收子单元， 具体用于接收对所述指定摄像机 的左右拖动操作指令； 接收对所述指定摄像机的上下拖动操作指令； 接收对所述指定 摄像机的双击操作指令；  In combination with the above-mentioned other aspect, and/or the first possible implementation manner, and/or the second possible implementation manner, in a third possible implementation manner, the instruction receiving sub-unit, specifically for receiving a pair And a left and right drag operation instruction of the specified camera; receiving an up and down drag operation instruction for the specified camera; receiving a double click operation instruction for the specified camera;
所述图像获取子单元，具体用于当所述指令接收子单元接收到对所述指定摄像机 的左右拖动操作指令时， 获取所述指定摄像机的水平方向视域范围的调整图像； 当所 述指令接收子单元接收到对所述指定摄像机的上下拖动操作指令时，获取所述指定摄 像机的垂直方向视域范围的调整图像；当所述指令接收子单元接收到对所述指定摄像 机的双击操作指令时， 获取所述指定摄像机的调焦后的调整图像。  The image acquisition subunit is configured to: when the instruction receiving subunit receives a left and right drag operation instruction for the specified camera, acquire an adjustment image of a horizontal direction range of the specified camera; And acquiring, by the instruction receiving subunit, an adjustment image of a vertical direction range of the specified camera when receiving an up and down drag operation instruction for the specified camera; and when the instruction receiving subunit receives a double click on the specified camera When the operation command is executed, the adjusted image of the specified camera is obtained.
结合上述另一方面，和 /或第一种可能的实现方式，和 /或第二种可能的实现方式， 和 /或第三种可能的实现方式， 在第四种可能的实现方式中， 所述显示单元， 具体用 于在以所述指定摄像机在所述电子地图上坐标为顶点，以所述指定摄像机的水平视场 角为夹角，以所述指定摄像机的水平安装方向向量作为所述夹角的角平分线与正北方 向的夹角， 以监控距离为半径所形成的扇形区域显示所述视频监控图像。 本发明实施例通过将电子地图***与视频监控***进行结合，在调取指定摄像机 的视频监控图像时可以直接在电子地图中选择该指定摄像机，并在视频监控***中获 取该指定摄像机的视频监控图像进行显示。该方法无需在庞大的视频监控***中逐层 查找指定的摄像机， 也无需在视频监控画面中来回多次切换，通过上述方法可以快速 的定位指定摄像机并实现图像显示， 简化获得指定摄像机视频图像的过程，提高了效 率。 附图说明 In combination with the above-mentioned other aspect, and/or the first possible implementation manner, and/or the second possible implementation manner, and/or the third possible implementation manner, in the fourth possible implementation manner, The display unit is specifically configured to use the horizontal camera angle of the specified camera as an apex with the coordinates of the specified camera as the apex, and the horizontal installation direction vector of the specified camera as the The angle between the angle bisector of the angle and the true north direction, and the video surveillance image is displayed by a sector area formed by monitoring the distance as a radius. In the embodiment of the present invention, by combining the electronic map system and the video monitoring system, when the video surveillance image of the specified camera is retrieved, the designated camera can be directly selected in the electronic map, and the video surveillance of the designated camera is obtained in the video monitoring system. The image is displayed. The method does not need to search for a specified camera layer by layer in a huge video monitoring system, and does not need to switch back and forth multiple times in the video monitoring screen. The above method can quickly locate a specified camera and realize image display, simplifying obtaining a video image of a specified camera. Process that increases efficiency. DRAWINGS
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现 有技术描述中所需要使用的附图作简单地介绍， 显而易见地，对于本领域普通技术人 员而言， 在不付出创造性劳动性的前提下， 还可以根据这些附图获得其他的附图。  In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it will be apparent to those skilled in the art that In other words, other drawings can be obtained based on these drawings without paying for creative labor.
图 1为本发明实施例一种视频监控图像的显示方法的流程图；  1 is a flowchart of a method for displaying a video surveillance image according to an embodiment of the present invention;
图 2为本发明实施例中对视频监控图像的信息加载方法流程图；  2 is a flowchart of a method for loading information of a video surveillance image according to an embodiment of the present invention;
图 3为本发明实施例中获取指定摄像机的视频监控图像的方法流程图； 图 4a~4d为本发明实施例中指定摄像机的各参量示意图；  3 is a flowchart of a method for acquiring a video surveillance image of a specified camera according to an embodiment of the present invention; and FIGS. 4a-4d are schematic diagrams of parameters of a specified camera according to an embodiment of the present invention;
图 5本发明实施例一种视频监控图像的显示***的结构示意图；  FIG. 5 is a schematic structural diagram of a video surveillance image display system according to an embodiment of the present invention; FIG.
图 6为本发明实施例另一种视频监控图像的显示***的结构示意图；  6 is a schematic structural diagram of another video surveillance image display system according to an embodiment of the present invention;
图 7为本发明实施例另一种视频监控图像的显示***的结构示意图；  7 is a schematic structural diagram of another video surveillance image display system according to an embodiment of the present invention;
图 8为本发明实施例一种视频监控图像的显示装置的结构示意图。 具体实施方式  FIG. 8 is a schematic structural diagram of a video display image display apparatus according to an embodiment of the present invention. detailed description
为了使本技术领域的人员更好地理解本发明实施例中的技术方案，并使本发明实 施例的上述目的、特征和优点能够更加明显易懂， 下面结合附图对本发明实施例中技 术方案作进一步详细的说明。  The above-mentioned objects, features, and advantages of the embodiments of the present invention will become more apparent and understood. Give further details.
参见图 1， 为本发明实施例一种视频监控图像的显示方法的流程图。  Referring to FIG. 1, a flowchart of a method for displaying a video surveillance image according to an embodiment of the present invention is shown.
该方法可以包括：  The method can include:
步骤 101， 在电子地图中确定选择区域的地理坐标。  Step 101: Determine geographic coordinates of the selected area in the electronic map.
本步骤中可以通过鼠标在电子地图上框选选择区域，该选择区域的地理坐标区域 可以根据鼠标在屏幕上的框选起点坐标 （例如， 可以是鼠标左键按下时的屏幕坐标） 和终点坐标（例如，可以是鼠标左键抬起时的屏幕坐标）以及电子地图在屏幕的位置、 比例尺计算该选择区域的地理坐标。当然， 该确定选择区域的方式以及用于确定选择 区域的地理坐标区域的方式有多种，例如可以以触屏位置坐标为圆心坐标， 以预设长 度为半径确定的圆形区域， 并根据电子地图在屏幕的位置、 比例尺计算该选择区域的 地理坐标。 In this step, the selection area can be selected on the electronic map by using a mouse, and the geographical coordinate area of the selection area can be selected according to the frame coordinates of the mouse on the screen (for example, the screen coordinates when the left mouse button is pressed) and the end point. The coordinates (for example, the screen coordinates when the left mouse button is raised) and the position of the electronic map on the screen, the scale calculates the geographic coordinates of the selected area. Of course, the way to determine the selection area and to determine the selection There are various ways of geographical coordinate area of the area, for example, a circular area determined by using a touch screen position coordinate as a center coordinate and a preset length as a radius, and calculating the geographical area of the selected area according to the position and scale of the electronic map according to the electronic map. coordinate.
步骤 102， 将选择区域的地理坐标区域与预先存储的多个摄像机的地理坐标进行 比对， 确定位于选择区域的摄像机， 作为指定摄像机。  Step 102: Compare the geographic coordinate area of the selected area with the geographical coordinates of the plurality of cameras stored in advance, and determine a camera located in the selected area as the designated camera.
本步骤中，可以在电子地图***的数据库中存储视频监控***中的多个摄像机的 地理坐标， 具体的， 可以是获取摄像机的三维地理坐标 （经度， 维度， 高度）， 然后 在电子地图的摄像机图层中添加该摄像机。  In this step, the geographic coordinates of the multiple cameras in the video surveillance system may be stored in the database of the electronic map system, specifically, the three-dimensional geographic coordinates (latitude, dimension, height) of the camera may be acquired, and then the camera in the electronic map Add this camera to the layer.
然后，将上步骤中选择区域的地理坐标与该多个摄像机的地理坐标进行比对， 获 取位于该选择区域内的摄像机， 并将该摄像机作为指定摄像机。  Then, the geographic coordinates of the selected area in the upper step are compared with the geographic coordinates of the plurality of cameras, the camera located in the selected area is obtained, and the camera is used as the designated camera.
步骤 103， 获取视频监控***中指定摄像机的视频监控图像。  Step 103: Acquire a video surveillance image of a specified camera in the video surveillance system.
本实施例中， 电子地图***与视频监控***是拟合在一起的， 电子地图上的摄像 机均可以直接链接至视频监控***中该摄像机的视频图像。  In this embodiment, the electronic map system is fitted with the video monitoring system, and the cameras on the electronic map can be directly linked to the video image of the camera in the video monitoring system.
在上步骤中确定出选择区域中的摄像机后， 即可直接链接至视频监控***， 并获 取视频监控***中该摄像机的视频图像进行显示， 具体的，可以在电子地图上进行显 示。  After determining the camera in the selected area in the previous step, it can directly link to the video surveillance system, and obtain the video image of the camera in the video surveillance system for display. Specifically, it can be displayed on the electronic map.
步骤 104， 显示视频监控图像。  Step 104: Display a video surveillance image.
本发明实施例通过将电子地图***与视频监控***进行结合，在调取指定摄像机 的视频监控图像时可以直接在电子地图中选择该指定摄像机，并在视频监控***中获 取该指定摄像机的视频监控图像进行显示。该方法无需在庞大的视频监控***中逐层 查找指定的摄像机， 也无需在视频监控画面中来回多次切换，通过上述方法可以快速 的定位指定摄像机并实现图像显示， 简化获得指定摄像机视频图像的过程，提高了效 率。  In the embodiment of the present invention, by combining the electronic map system and the video monitoring system, when the video surveillance image of the specified camera is retrieved, the designated camera can be directly selected in the electronic map, and the video surveillance of the designated camera is obtained in the video monitoring system. The image is displayed. The method does not need to search for a specified camera layer by layer in a huge video monitoring system, and does not need to switch back and forth multiple times in the video monitoring screen. The above method can quickly locate a specified camera and realize image display, simplifying obtaining a video image of a specified camera. Process that increases efficiency.
在本发明的另一实施例中，在获取视频监控***中指定摄像机的视频监控图像之 后,显示指定摄像机的视频监控图像之前， 该方法还可以进包括对视频监控图像的信 息加载过程， 如图 2所示， 该方法可以包括：  In another embodiment of the present invention, after acquiring the video surveillance image of the specified camera in the video surveillance system, before displaying the video surveillance image of the specified camera, the method may further include an information loading process for the video surveillance image, as shown in the figure. As shown in 2, the method can include:
步骤 201， 将指定摄像机的视频监控图像与预存储的指定摄像机所在地理位置的 拍摄图像进行对比， 获得相匹配的地理标识。  Step 201: Compare the video surveillance image of the specified camera with the pre-stored captured image of the geographic location of the specified camera to obtain a matching geographic identifier.
首先， 获得视频监控***中的多个或所有摄像机所在地理位置的拍摄图像， 该拍 摄图像可以是对同一地理位置不同角度的拍摄图像，该不同角度可以根据各摄像机监 控角度来确定， 也还可以包括对同一地理位置在不同缩放比例下的拍摄图像， 该不同 缩放比例可以根据各摄像机监控的缩放比例来确定。可以将这些拍摄图像存储在电子 地图***的数据库中， 并建立拍摄图像中各地理标识与标识信息的对应关系，例如拍 摄图像中的道路与道路名称的对应关系，拍摄图像中的建筑物与建筑物名称的对应关 系等。 First, obtaining a captured image of a geographic location of a plurality of or all of the cameras in the video surveillance system, the captured image may be a captured image at different angles of the same geographic location, and the different angles may be determined according to the monitoring angles of the cameras, and may also be Includes captured images of the same geographic location at different scales, the difference The zoom ratio can be determined based on the zoom ratio monitored by each camera. These captured images can be stored in a database of the electronic map system, and the corresponding relationship between the geographical indications and the identification information in the captured image, such as the correspondence between the road and the road name in the captured image, and the buildings and buildings in the captured image can be established. Correspondence between object names, etc.
在获得指定摄像机的视频监控图像后，将该图像与电子地图数据库中存储的拍摄 图像在相同比例尺和 /或相同拍摄角度下进行对比， 具体的可以设定相似度阈值， 若 大于等于该阈值则认为两图像匹配， 具体的图像匹配过程与现有技术类似。  After obtaining the video surveillance image of the specified camera, the image is compared with the captured image stored in the electronic map database at the same scale and/or the same shooting angle. Specifically, the similarity threshold may be set, and if the threshold is greater than or equal to the threshold The two images are considered to match, and the specific image matching process is similar to the prior art.
在确定与视频监控图像相匹配的拍摄图像后，进一步获得两图像中相匹配的地理 标识， 例如， 道路、 建筑物等。  After determining the captured image that matches the video surveillance image, the matching geographical indications in the two images, such as roads, buildings, etc., are further obtained.
步骤 202， 将指定摄像机所在地理位置的拍摄图像中相匹配的地理标识所对应的 标识信息加载至指定摄像机的视频监控图像中相匹配的地理标识处。  Step 202: Load the identification information corresponding to the matching geographical identifier in the captured image of the geographic location of the specified camera to the matching geographic identifier in the video surveillance image of the specified camera.
在确定相匹配的地理标识后，在本步骤中，根据电子地图***的数据库中存储的 地理标识与标识信息的对应关系，将上步骤相匹配的地理标识的标识信息加载至指定 摄像机的视频监控图像中。  After determining the matching geographical indication, in this step, according to the correspondence between the geographic identifier and the identification information stored in the database of the electronic map system, the identification information of the geographical identifier matched in the previous step is loaded to the video surveillance of the designated camera. In the image.
然后，再显示加载有相匹配的地理标识对应的标识信息的指定摄像机的视频监控 图像。在具体显示标识信息时， 可以在视频监控图像的界面上做透明图层， 获取识别 出来的地理标识的轮廓， 例如建筑物的轮廓， 然后在轮廓上增加说明框， 将获取的标 识信息显示在透明图层上的说明框中。  Then, the video surveillance image of the specified camera loaded with the identification information corresponding to the matching geographical indication is displayed. When the identification information is specifically displayed, a transparent layer may be formed on the interface of the video surveillance image to obtain an outline of the identified geographical indication, such as a contour of the building, and then a description box is added to the contour, and the acquired identification information is displayed on the The description box on the transparent layer.
在另一实施例中，还可以视频监控图像中的车辆信息，通过车辆识别技术和车牌 识别技术， 识别出车辆轮廓和车牌号码， 通过车牌号码查询车辆数据库， 获取车型和 车主信息， 在车辆轮廓上增加说明框， 并将这些信息显示在透明图层上。  In another embodiment, the vehicle information in the image can also be video-monitored, the vehicle identification and the license plate number are recognized by the vehicle identification technology and the license plate recognition technology, the vehicle database is queried by the license plate number, and the vehicle model and the vehicle owner information are obtained. Add a description box and display the information on the transparent layer.
本发明实施例通过图像匹配及信息加载， 实现了视频图像中地理标识信息的显 示， 从而丰富了视频监控图像的信息，可以方便的根据图像中显示的地理标识信息对 图像内容进行定位。  The image matching and information loading in the embodiment of the invention realize the display of the geographical indication information in the video image, thereby enriching the information of the video surveillance image, and conveniently positioning the image content according to the geographical identification information displayed in the image.
在本发明的另一实施例中，获取视频监控***中指定摄像机的视频监控图像的过 程， 如图 3所示， 还可以进一步包括：  In another embodiment of the present invention, the process of acquiring the video surveillance image of the specified camera in the video surveillance system, as shown in FIG. 3, may further include:
步骤 301， 接收对指定摄像机的操作指令。  Step 301: Receive an operation instruction for the specified camera.
本步骤中可以预先将操作动作与对应的操作指令存储在视频监控***或电子地 图***中， 可以获取外接设备等的动作并识别该动作对应的操作指令， 例如：  In this step, the operation action and the corresponding operation instruction may be stored in the video monitoring system or the electronic map system in advance, and the action of the external device or the like may be acquired and the operation instruction corresponding to the action may be recognized, for example:
接收对指定摄像机的左右拖动操作指令，例如根据鼠标的左右拖动确定对指定摄 像机的左右拖动操作指令； 或者， 接收对指定摄像机的上下拖动操作指令，例如根据鼠标的上下拖动确定对指定摄 像机的上下拖动操作指令； 或者， Receiving a left and right drag operation instruction for the specified camera, for example, determining a left and right drag operation instruction for the specified camera according to the left and right drag of the mouse; or Receiving an up and down drag operation instruction for the specified camera, for example, determining an up and down drag operation instruction for the specified camera according to the up and down drag of the mouse; or
接收对所述指定摄像机的双击操作指令，例如根据鼠标的双击动作确定对指定摄 像机的调焦操作。  A double-click operation instruction for the specified camera is received, for example, a focus adjustment operation for the designated camera is determined according to a double-click action of the mouse.
当然， 还可以包括其他的动作及对应操作指令， 此处不再一一列举。  Of course, other actions and corresponding operation instructions may also be included, and are not enumerated here.
步骤 302， 获取指定摄像机的调整图像， 调整图像为视频监控***根据操作指令 对指定摄像机进行调整操作后所获得的视频监控图像。  Step 302: Acquire an adjustment image of the specified camera, and adjust the image as a video surveillance image obtained by the video surveillance system after performing an adjustment operation on the designated camera according to the operation instruction.
在获取操作指令后，可以将该指令传输至视频监控***，有视频监控***对指定 摄像机进行对应操作， 具体的可以通过操作控件实现对指定摄像机的远程操控，进而 实现对视频监控图像的操作。 进而在本步骤中获得该指定摄像机的调整图像。  After obtaining the operation instruction, the instruction can be transmitted to the video monitoring system, and the video monitoring system performs corresponding operations on the designated camera. Specifically, the remote control of the specified camera can be realized through the operation control, thereby realizing the operation of the video surveillance image. Further, in this step, an adjustment image of the specified camera is obtained.
例如，用于当接收到对指定摄像机的左右拖动操作指令时， 获取指定摄像机的水 平方向视域范围的调整图像； 当接收到对指定摄像机的上下拖动操作指令时， 获取指 定摄像机的垂直方向视域范围的调整图像； 当接收到对指定摄像机的双击操作指令 时， 获取指定摄像机的调焦后的调整图像。  For example, when receiving a left and right drag operation instruction for a specified camera, acquiring an adjustment image of a horizontal direction range of the specified camera; when receiving an up and down drag operation instruction for the specified camera, acquiring a vertical of the specified camera Adjusting the image of the direction of view of the direction; When receiving the double-click operation command for the specified camera, the adjusted image of the focus of the specified camera is acquired.
本发明实施例通过对操作动作的识别实现了对视频监控图像的控制和调整。 在另一实施例中，在显示视频监控图像时，可以在以指定摄像机在电子地图上的 坐标为顶点， 以指定摄像机的水平视场角为夹角， 以指定摄像机的水平安装方向向量 为方向也即以指定摄像机的水平安装方向向量作为上述夹角的角平分线与正北方向 的夹角， 以监控距离为半径所形成的扇形区域显示视频监控图像。  The embodiment of the invention realizes the control and adjustment of the video surveillance image by recognizing the operation action. In another embodiment, when displaying the video surveillance image, the coordinates of the specified camera on the electronic map may be used as a vertex to specify the horizontal angle of view of the camera as an angle to specify the horizontal installation direction vector of the camera as the direction. That is, the horizontal installation direction vector of the specified camera is used as the angle between the angle bisector of the above angle and the north direction, and the video surveillance image is displayed by the sector area formed by the monitoring distance radius.
如图 4a所示， 指定摄像机的水平安装方向向量为 θ， 该 θ为指定摄像机与正北 方向的夹角。 如图 4b所示， 指定摄像机的焦距为 f， 根据焦距 f和指定摄像机 CCD 的宽度 w可以计算出指定摄像机的水平视场角 α 。  As shown in Figure 4a, the horizontal mounting direction vector of the specified camera is θ, which is the angle between the specified camera and the true north direction. As shown in Figure 4b, the focal length of the specified camera is f, and the horizontal field of view α of the specified camera can be calculated based on the focal length f and the width w of the specified camera CCD.
水平视场角 α为 tan( a /2)=w/2f  The horizontal field of view angle α is tan( a /2)=w/2f
如图 4c所示， 假设指定摄像机将最小目标识别成像大小为 m， 要分辨对象的实 际大小为 M， 则最大放大比为&=^1/1^ 其中， a与指定摄像机本身有关， 也可以根据 经验给出， 则监控距离 L为： L=af  As shown in Fig. 4c, assuming that the specified camera has the smallest target recognition image size of m, and the actual size of the object to be distinguished is M, the maximum magnification ratio is &=^1/1^ where a is related to the specified camera itself, or According to experience, the monitoring distance L is: L=af
在电子地图中显示指定摄像机的视频监控图像时， 如图 4d所示， 既可以在以指 定摄像机在电子地图上的坐标为顶点， 以指定摄像机的水平视场角为夹角， 以所述指 定摄像机的水平安装方向向量作为所述夹角的角平分线与正北方向的夹角，以监控距 离为半径所形成的扇形区域显示视频监控图像。  When displaying the video surveillance image of the specified camera in the electronic map, as shown in FIG. 4d, the coordinates of the specified camera on the electronic map may be vertices, and the horizontal angle of view of the specified camera may be used as the angle. The horizontal installation direction vector of the camera is used as an angle between the angle bisector of the angle and the north direction, and the video surveillance image is displayed in a sector area formed by monitoring the radius.
如果该指定摄像机支持动态调焦或者云台，则从摄像机获取当前的焦距值和相对 水平方向相对旋转角度 Δ (新的方向角 θ ' = θ - Δ ) ， 可以按照上述公式重新计算 摄像机的可视范围。 If the specified camera supports dynamic focus or pan/tilt, the current focus value and relative are obtained from the camera. The horizontal direction relative rotation angle Δ (new direction angle θ ' = θ - Δ ), the visual range of the camera can be recalculated according to the above formula.
以上是对本发明方法实施例的描述， 下面对实现上述方法的***进行介绍。 参见图 5， 为本发明实施例一种视频监控图像的显示***的结构示意图。  The above is a description of the embodiment of the method of the present invention. The system for implementing the above method will be described below. FIG. 5 is a schematic structural diagram of a video surveillance image display system according to an embodiment of the present invention.
该***可以包括：  The system can include:
区域确定单元 501， 用于在电子地图中确定选择区域的地理坐标；  An area determining unit 501, configured to determine geographic coordinates of the selected area in the electronic map;
摄像机确定单元 502， 用于将区域确定单元 501确定的选择区域的地理坐标与预 先存储的多个摄像机的地理坐标进行比对，确定位于所述选择区域的摄像机， 作为指 定摄像机；  The camera determining unit 502 is configured to compare the geographic coordinates of the selected area determined by the area determining unit 501 with the geographical coordinates of the plurality of cameras stored in advance, and determine a camera located in the selected area as the designated camera;
图像获取单元 503， 用于获取视频监控***中摄像机确定单元 502确定的指定摄 像机的视频监控图像；  The image obtaining unit 503 is configured to acquire a video surveillance image of the specified camera determined by the camera determining unit 502 in the video monitoring system;
图像显示单元 504， 用于显示图像获取单元 503获取的视频监控图像。  The image display unit 504 is configured to display the video surveillance image acquired by the image acquisition unit 503.
本发明实施例中该***通过将电子地图***与视频监控***进行结合，在调取指 定摄像机的视频监控图像时可以直接在电子地图中选择该指定摄像机，并在视频监控 ***中获取该指定摄像机的视频监控图像进行显示。该***无需在庞大的视频监控系 统中逐层查找指定的摄像机， 也无需在视频监控画面中来回多次切换，通过上述各单 元可以快速的定位指定摄像机并实现图像显示， 简化获得指定摄像机视频图像的过 程， 提高了效率。  In the embodiment of the present invention, the system combines the electronic map system with the video monitoring system, and when the video surveillance image of the specified camera is retrieved, the designated camera can be directly selected in the electronic map, and the designated camera is obtained in the video monitoring system. The video surveillance image is displayed. The system does not need to search for a specified camera layer by layer in a huge video surveillance system, and does not need to switch back and forth multiple times in the video surveillance picture. Through the above units, the specified camera can be quickly positioned and image display can be realized, and the video image of the specified camera can be simplified. The process has improved efficiency.
参见图 6， 为本发明实施例另一种视频监控图像的显示***的结构示意图。 该***除了可以包括区域确定单元 601、摄像机确定单元 602、图像获取单元 603 和图像显示单元 604之外， 还可以包括：  FIG. 6 is a schematic structural diagram of another video surveillance image display system according to an embodiment of the present invention. The system may include, in addition to the area determining unit 601, the camera determining unit 602, the image obtaining unit 603, and the image display unit 604, the following:
图像比对单元 605， 用于在所述图像获取单元 603获取所述视频监控图像之后， 图像显示单元 604显示视频监控图像之前，将指定摄像机的视频监控图像与预存储的 指定摄像机所在地理位置的拍摄图像进行对比， 获得相匹配的地理标识；  The image comparison unit 605 is configured to: after the image acquisition unit 603 acquires the video surveillance image, before the image display unit 604 displays the video surveillance image, the video surveillance image of the specified camera and the pre-stored specified geographic location of the camera Take images for comparison and obtain matching geographical indications;
信息加载单元 606， 用于将所述指定摄像机所在地理位置的拍摄图像中所述相匹 配的地理标识所对应的标识信息加载至所述指定摄像机的视频监控图像中所述相匹 配的地理标识处。  The information loading unit 606 is configured to load identifier information corresponding to the matched geographical identifier in the captured image of the geographic location where the specified camera is located, into the matched geographical identifier in the video surveillance image of the specified camera. .
图像显示单元 604， 具体用于显示加载有标识信息的所述指定摄像机的视频监控 图像。  The image display unit 604 is specifically configured to display a video surveillance image of the specified camera loaded with the identification information.
本发明实施例中该***通过图像匹配及信息加载，实现了视频图像中地理标识信 息的加载和显示， 从而丰富了视频监控图像的信息，可以方便的根据图像中显示的地 理标识信息对图像内容进行定位。 In the embodiment of the invention, the system realizes loading and displaying of the geographic identification information in the video image through image matching and information loading, thereby enriching the information of the video surveillance image, and can conveniently display the image according to the image. The identification information is used to locate the image content.
参见图 7， 为本发明实施例另一种视频监控图像的显示***的结构示意图。 该***可以包括区域确定单元 701、 摄像机确定单元 702、 图像获取单元 703和 图像显示单元 704。  FIG. 7 is a schematic structural diagram of another video surveillance image display system according to an embodiment of the present invention. The system may include an area determining unit 701, a camera determining unit 702, an image obtaining unit 703, and an image display unit 704.
其中， 图像获取单元 703可以进一步包括：  The image obtaining unit 703 may further include:
指令接收子单元 7031， 用于接收对所述指定摄像机的操作指令。 指令接收子单 元 7031， 具体用于接收对所述指定摄像机的左右拖动操作指令； 接收对所述指定摄 像机的上下拖动操作指令； 接收对所述指定摄像机的双击操作指令。  The instruction receiving subunit 7031 is configured to receive an operation instruction for the specified camera. The instruction receiving subunit 7031 is specifically configured to receive a left and right drag operation instruction for the specified camera; receive an up and down drag operation instruction for the specified camera; and receive a double click operation instruction for the specified camera.
图像获取子单元 7032， 用于获取所述指定摄像机的调整图像， 所述调整图像为 所述视频监控***根据所述操作指令对所述指定摄像机进行调整操作后所获得的视 频监控图像。 图像获取子单元 7032， 具体用于当所述指令接收子单元接收到对所述 指定摄像机的左右拖动操作指令时，获取所述指定摄像机的水平方向视域范围的调整 图像； 当所述指令接收子单元接收到对所述指定摄像机的上下拖动操作指令时， 获取 所述指定摄像机的垂直方向视域范围的调整图像；当所述指令接收子单元接收到对所 述指定摄像机的双击操作指令时， 获取所述指定摄像机的调焦后的调整图像。  The image acquisition sub-unit 7032 is configured to acquire an adjustment image of the specified camera, where the adjustment image is a video surveillance image obtained by the video surveillance system after performing an adjustment operation on the designated camera according to the operation instruction. The image acquisition sub-unit 7032 is configured to: when the instruction receiving sub-unit receives a left-right drag operation instruction for the specified camera, acquire an adjustment image of a horizontal direction range of the specified camera; Receiving, by the receiving subunit, an adjustment image of a vertical direction range of the specified camera when receiving an up and down drag operation instruction for the specified camera; and receiving, by the instruction receiving subunit, a double click operation on the specified camera When the command is made, the adjusted image of the specified camera is obtained.
该***通过对操作动作的识别实现了对视频监控图像的控制和调整。  The system realizes the control and adjustment of the video surveillance image by recognizing the operation action.
以上各实施例中， 显示单元，还可以具体用于在以所述指定摄像机在所述电子地 图上坐标为顶点， 以所述指定摄像机的水平视场角为夹角， 以所述指定摄像机的水平 安装方向向量作为所述夹角的角平分线与正北方向的夹角，以监控距离为半径所形成 的扇形区域显示所述视频监控图像。  In the above embodiments, the display unit may be further configured to use the coordinates of the specified camera as the vertices on the electronic map as the apex of the specified camera, and the angle of the horizontal field of view of the specified camera as the angle of the specified camera. The horizontal mounting direction vector is used as an angle between the angle bisector of the included angle and the true north direction, and the video surveillance image is displayed by a sector area formed by monitoring the distance as a radius.
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单 元及算法步骤， 能够以电子硬件、 或者计算机软件和电子硬件的结合来实现。这些功 能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专 业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实 现不应认为超出本发明的范围。  One of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、 装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。  A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.
在本申请所提供的几个实施例中， 应该理解到， 所揭露的***、 装置和方法， 可 以通过其它的方式实现。 例如， 以上所描述的装置实施例仅仅是示意性的， 例如， 所 述单元的划分， 仅仅为一种逻辑功能划分， 实际实现时可以有另外的划分方式， 例如 多个单元或组件可以结合或者可以集成到另一个***， 或一些特征可以忽略， 或不执 行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些 接口， 装置或单元的间接耦合或通信连接， 可以是电性， 机械或其它的形式。 In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented Row. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显 示的部件可以是或者也可以不是物理单元， 即可以位于一个地方， 或者也可以分布到 多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例 方案的目的。  The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiment.
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中， 也可以 是各个单元单独物理存在， 也可以两个或两个以上单元集成在一个单元中。  In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
发明实施例进一步提供了一个实施本发明上述方法各实施例的装置结构图。所述 装置可以嵌入或本身就是微处理计算机， 比如： 通用计算机、 客户定制机、 手机终端 或平板机等便携设备。  The embodiments of the invention further provide a block diagram of a device for carrying out various embodiments of the above method of the invention. The device can be embedded or itself a microprocessor computer, such as a general purpose computer, a custom machine, a mobile terminal or a tablet.
如图 8所示， 该装置包括： 存储设备 801， 处理器 802， 显示器 803。  As shown in FIG. 8, the device includes: a storage device 801, a processor 802, and a display 803.
所述存储设备 801用于存储电子地图的数据库，以及代码和指令。  The storage device 801 is used to store a database of electronic maps, as well as code and instructions.
所述处理器 802和所述存储器 801耦合,以实现下述方法： 在电子地图中确定选择 区域的地理坐标；将所述选择区域的地理坐标与所述电子地图的数据库中预先存储的 多个摄像机的地理坐标进行比对，确定位于所述选择区域的摄像机，作为指定摄像机； 获取视频监控***中所述指定摄像机的视频监控图像；控制所述显示器 803显示所述 视频监控图像。  The processor 802 is coupled to the memory 801 to implement a method of: determining geographic coordinates of a selected area in an electronic map; and pre-storing the geographic coordinates of the selected area with a database of the electronic map The geographic coordinates of the camera are compared, a camera located in the selected area is determined as a designated camera; a video surveillance image of the specified camera in the video surveillance system is acquired; and the display 803 is controlled to display the video surveillance image.
在本发明的一个实施例中,所述处理器可以是：通用中央处理器（central procession unit, CPU)、 专用集成电路 (application specific integrated circuit, ASIC)、 数字信号处 理器 （DSP)、 现成可编程门阵列 （FPGA) 或其他可编程逻辑器件。  In an embodiment of the present invention, the processor may be: a central processing unit (CPU), an application specific integrated circuit (ASIC), a digital signal processor (DSP), and an off-the-shelf Program gate array (FPGA) or other programmable logic device.
在本发明的一个实施例中,所述存储设备可以是计算机能够存取的任何可用介 质，包括但不限于：只读存储器（read only memory, ROM)、随机存储器 (random access memory, RAM) 或磁盘存储 （disk storage )、 闪存、 可编程只读存储器或电可擦写可 编程存储器、寄存器等本领域熟悉的存储介质。所述存储设备用于向处理单元提供指 令和数据， 和处理单元通过总线连接。  In an embodiment of the present invention, the storage device may be any available media that the computer can access, including but not limited to: read only memory (ROM), random access memory (RAM), or A storage medium familiar to the art, such as disk storage, flash memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage device is operative to provide instructions and data to the processing unit, and the processing unit is coupled via a bus.
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以 存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或 者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现 出来， 该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机 设备 （可以是个人计算机， 服务器， 或者网络设备等） 或处理器 （processor)执行本 发明各个实施例所述方法的全部或部分步骤。 而前述的存储介质包括： u盘、移动硬 盘、只读存储器（ROM, Read-Only Memory ) 随机存取存储器（RAM, Random Access Memory), 磁碟或者光盘等各种可以存储程序代码的介质。 The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including a number of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute the present All or part of the steps of the method described in the various embodiments are invented. The foregoing storage medium includes: u disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, and the like, which can store program code.
以上所述， 仅为本发明的具体实施方式， 但本发明的保护范围并不局限于此， 任 何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易想到变化或替换， 都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应所述以权利要求的保 护范围为准。  The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

权 利 要 求 Rights request
1、 一种视频监控图像的显示方法， 其特征在于， 包括：  A method for displaying a video surveillance image, comprising:
在电子地图中确定选择区域的地理坐标；  Determining the geographic coordinates of the selected area in the electronic map;
将所述选择区域的地理坐标与预先存储的多个摄像机的地理坐标进行比对， 确定位于所述选择区域的摄像机， 作为指定摄像机；  Comparing the geographic coordinates of the selected area with the geographical coordinates of the plurality of cameras stored in advance, and determining a camera located in the selected area as a designated camera;
获取视频监控***中所述指定摄像机的视频监控图像；  Obtaining a video surveillance image of the specified camera in the video surveillance system;
显示所述视频监控图像。  The video surveillance image is displayed.
2、 根据权利要求 1所述的方法， 其特征在于， 在所述获取视频监控***中 所述指定摄像机的视频监控图像之后,所述显示所述视频监控图像之前， 所述方 法还包括： The method according to claim 1, wherein after the video surveillance image of the specified camera in the video surveillance system is acquired, before the displaying the video surveillance image, the method further includes:
将所述指定摄像机的视频监控图像与预存储的所述指定摄像机所在地理位 置的拍摄图像进行对比， 获得相匹配的地理标识；  Comparing the video surveillance image of the specified camera with the pre-stored captured image of the geographic location of the specified camera to obtain a matching geographical indication;
将所述指定摄像机所在地理位置的拍摄图像中所述相匹配的地理标识所对 应的标识信息加载至所述指定摄像机的视频监控图像中所述相匹配的地理标识 处；  Loading identification information corresponding to the matched geographic identifier in the captured image of the geographic location of the specified camera to the matching geographic identifier in the video surveillance image of the specified camera;
所述显示所述视频监控图像， 包括：  The displaying the video surveillance image includes:
显示加载有标识信息的所述指定摄像机的视频监控图像。  A video surveillance image of the specified camera loaded with identification information is displayed.
3、 根据权利要求 1或 2所述的方法， 其特征在于， 所述获取视频监控*** 中所述指定摄像机的视频监控图像， 包括： The method according to claim 1 or 2, wherein the acquiring a video surveillance image of the specified camera in the video surveillance system comprises:
接收对所述指定摄像机的操作指令；  Receiving an operation instruction for the specified camera;
获取所述指定摄像机的调整图像，所述调整图像为所述视频监控***根据所 述操作指令对所述指定摄像机进行调整操作后所获得的视频监控图像。  Obtaining an adjustment image of the specified camera, where the adjustment image is a video surveillance image obtained by the video surveillance system after performing an adjustment operation on the designated camera according to the operation instruction.
4、 根据权利要求 3所述的方法， 其特征在于， 4. The method of claim 3, wherein
所述接收对所述指定摄像机的操作指令， 包括： 接收对所述指定摄像机的左 右拖动操作指令； 所述获取所述指定摄像机的调整图像， 包括： 获取所述指定摄 像机的水平方向视域范围的调整图像； 或者，  The receiving an operation instruction for the specified camera, comprising: receiving a left and right drag operation instruction for the specified camera; and acquiring the adjusted image of the specified camera, comprising: acquiring a horizontal direction view of the specified camera Adjustment image of the range; or,
所述接收对所述指定摄像机的操作指令， 包括： 接收对所述指定摄像机的上 下拖动操作指令； 所述获取所述指定摄像机的调整图像， 包括： 获取所述指定摄 像机的垂直方向视域范围的调整图像； 或者， The receiving an operation instruction for the specified camera includes: receiving an up and down drag operation instruction for the specified camera; and acquiring the adjusted image of the specified camera, comprising: acquiring the specified camera An image of the camera's vertical viewing range; or
所述接收对所述指定摄像机的操作指令， 包括： 接收对所述指定摄像机的双 击操作指令； 所述获取所述指定摄像机的调整图像， 包括： 获取所述指定摄像机 的调焦后的调整图像。  The receiving an operation instruction for the specified camera, comprising: receiving a double-click operation instruction for the specified camera; and acquiring the adjustment image of the specified camera, comprising: acquiring an adjusted image of the specified camera after focusing .
5、 根据权利要求 1至 4中任意一项所述的方法， 其特征在于， 所述显示所 述视频监控图像包括： The method according to any one of claims 1 to 4, wherein the displaying the video surveillance image comprises:
在以所述指定摄像机在所述电子地图上的坐标为顶点，以所述指定摄像机的 水平视场角为夹角，以所述指定摄像机的水平安装方向向量作为所述夹角的角平 分线与正北方向的夹角，以监控距离为半径所形成的扇形区域显示所述视频监控 图像。  Taking the coordinates of the specified camera on the electronic map as a vertex, the angle of the horizontal field of view of the specified camera as an angle, and the horizontal mounting direction vector of the specified camera as the angle bisector of the angle The video surveillance image is displayed by a fan-shaped area formed by monitoring the distance as a radius from the true north direction.
6、 一种视频监控图像的显示***， 其特征在于， 包括： 6. A display system for video surveillance images, comprising:
区域确定单元， 用于在电子地图中确定选择区域的地理坐标；  a region determining unit, configured to determine a geographic coordinate of the selected region in the electronic map;
摄像机确定单元，用于将所述区域确定单元确定的选择区域的地理坐标与预 先存储的多个摄像机的地理坐标进行比对， 确定位于所述选择区域的摄像机， 作 为指定摄像机；  a camera determining unit, configured to compare the geographic coordinates of the selected area determined by the area determining unit with the geographical coordinates of the plurality of cameras stored in advance, and determine a camera located in the selected area as a designated camera;
图像获取单元，用于获取视频监控***中所述摄像机确定单元确定的指定摄 像机的视频监控图像；  An image acquisition unit, configured to acquire a video surveillance image of the specified camera determined by the camera determination unit in the video surveillance system;
图像显示单元， 用于显示所述图像获取单元获取的视频监控图像。  And an image display unit, configured to display a video surveillance image acquired by the image acquisition unit.
7、 根据权利要求 6所述的***， 其特征在于， 还包括： 7. The system according to claim 6, further comprising:
图像比对单元， 用于在所述图像获取单元获取所述视频监控图像之后， 所述 图像显示单元显示所述视频监控图像之前，将所述指定摄像机的视频监控图像与 预存储的所述指定摄像机所在地理位置的拍摄图像进行对比，获得相匹配的地理 标识；  An image comparison unit, configured to: before the image acquisition unit acquires the video surveillance image, the image display unit displays the video surveillance image of the specified camera and the pre-stored specified before displaying the video surveillance image The captured images of the geographic location of the camera are compared to obtain a matching geographical indication;
信息加载单元，用于将所述指定摄像机所在地理位置的拍摄图像中所述相匹 配的地理标识所对应的标识信息加载至所述指定摄像机的视频监控图像中所述 相匹配的地理标识处；  And an information loading unit, configured to: load identifier information corresponding to the matched geographical identifier in the captured image of the geographic location of the specified camera to the matched geographical identifier in the video surveillance image of the specified camera;
所述图像显示单元，具体用于显示加载有标识信息的所述指定摄像机的视频 监控图像。 The image display unit is specifically configured to display a video surveillance image of the specified camera loaded with the identification information.
8、根据权利要求 6或 7所述的***， 其特征在于， 所述图像获取单元包括: 指令接收子单元， 用于接收对所述指定摄像机的操作指令； The system according to claim 6 or 7, wherein the image acquisition unit comprises: an instruction receiving subunit, configured to receive an operation instruction for the specified camera;
图像获取子单元， 用于获取所述指定摄像机的调整图像， 所述调整图像为所 述视频监控***根据所述操作指令对所述指定摄像机进行调整操作后所获得的 视频监控图像。  And an image acquisition subunit, configured to acquire an adjustment image of the specified camera, where the adjustment image is a video surveillance image obtained by the video surveillance system after performing an adjustment operation on the designated camera according to the operation instruction.
9、 根据权利要求 8所述的***， 其特征在于， 9. The system of claim 8 wherein:
所述指令接收子单元， 具体用于接收对所述指定摄像机的左右拖动操作指 令； 接收对所述指定摄像机的上下拖动操作指令； 接收对所述指定摄像机的双击 操作指令；  The instruction receiving subunit is specifically configured to receive a left and right drag operation instruction for the specified camera; receive an up and down drag operation instruction for the specified camera; and receive a double click operation instruction for the specified camera;
所述图像获取子单元，具体用于当所述指令接收子单元接收到对所述指定摄 像机的左右拖动操作指令时，获取所述指定摄像机的水平方向视域范围的调整图 像； 当所述指令接收子单元接收到对所述指定摄像机的上下拖动操作指令时， 获 取所述指定摄像机的垂直方向视域范围的调整图像；当所述指令接收子单元接收 到对所述指定摄像机的双击操作指令时，获取所述指定摄像机的调焦后的调整图 像。  The image acquisition subunit is configured to: when the instruction receiving subunit receives a left and right drag operation instruction for the specified camera, acquire an adjustment image of a horizontal direction range of the specified camera; And acquiring, by the instruction receiving subunit, an adjustment image of a vertical direction view range of the specified camera when receiving an up and down drag operation instruction for the specified camera; and when the instruction receiving subunit receives a double click on the specified camera When the operation command is executed, the adjusted image after the focus adjustment of the specified camera is acquired.
10、 根据权利要求 6至 9中任意一项所述的***， 其特征在于， 10. A system according to any one of claims 6 to 9 wherein:
所述显示单元， 具体用于在以所述指定摄像机在所述电子地图上坐标为顶 点， 以所述指定摄像机的水平视场角为夹角， 以所述指定摄像机的水平安装方向 向量作为所述夹角的角平分线与正北方向的夹角，以监控距离为半径所形成的扇 形区域显示所述视频监控图像。  The display unit is specifically configured to use a coordinate of the specified camera on the electronic map as a vertex, an angle of the horizontal field of view of the specified camera, and a horizontal installation direction vector of the specified camera. The angle between the angle bisector of the angle and the true north direction is displayed, and the video surveillance image is displayed by a sector area formed by monitoring the distance as a radius.
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