WO2017117749A1 - Système et procédé de suivi de point basés sur plusieurs approches de télémétrie, et système de photographie - Google Patents

Système et procédé de suivi de point basés sur plusieurs approches de télémétrie, et système de photographie Download PDF

Info

Publication number
WO2017117749A1
WO2017117749A1 PCT/CN2016/070300 CN2016070300W WO2017117749A1 WO 2017117749 A1 WO2017117749 A1 WO 2017117749A1 CN 2016070300 W CN2016070300 W CN 2016070300W WO 2017117749 A1 WO2017117749 A1 WO 2017117749A1
Authority
WO
WIPO (PCT)
Prior art keywords
distance
focus
ranging
wireless
wireless ranging
Prior art date
Application number
PCT/CN2016/070300
Other languages
English (en)
Chinese (zh)
Inventor
徐红兵
何景川
Original Assignee
深圳市莫孚康技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市莫孚康技术有限公司 filed Critical 深圳市莫孚康技术有限公司
Priority to CN201680000519.7A priority Critical patent/CN105874384B/zh
Priority to PCT/CN2016/070300 priority patent/WO2017117749A1/fr
Publication of WO2017117749A1 publication Critical patent/WO2017117749A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G03B13/36—Autofocus systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/285—Systems for automatic generation of focusing signals including two or more different focus detection devices, e.g. both an active and a passive focus detecting device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects

Definitions

  • the invention relates to the field of imaging and communication, and in particular to a focus tracking system, a method and a photographing system based on a plurality of ranging methods.
  • the existing automatic focus tracking device based on video target tracking includes a tablet computer with video target tracking software installed, and the tablet computer outputs the two-dimensional coordinates of the current focus target on the video image; used to measure the distance between the camera focal plane and the actor Ranging sensor; two-axis pan/tilt for pointing the distance measuring sensor to the actor, the distance measuring sensor mounted on the pan/tilt; the motor for driving the rotation of the lens FOCUS ring; the motor driver for driving the motor; for receiving the camera
  • the video capture card of the output video signal the tablet computer receives the video signal output by the video capture card; is used for receiving the coordinate signal outputted by the video output of the tablet computer, the ranging data output by the ranging sensor, and the ranging data according to the ranging data
  • the advantage of the automatic focus follower based on video target tracking is that the focus target can be selected, the distance measuring sensor is controlled to point to the target, and the focus is automatically followed by the ranging data;
  • the ranging sensor is generally a laser ranging sensor or an ultrasonic ranging sensor, ranging High precision and precise focus.
  • the video frame rate output by the camera is generally below 30 frames per second.
  • the tablet receives the image image and the actual object movement delay is relatively large, plus the time required for image processing, causing the tablet output to follow the focal target coordinates and the actual target.
  • the moving coordinate delay is large, especially in the case where the coordinates of the actor continuously change in the image, the pan-tilt motion delay, the ranging sensor usually cannot accurately focus, and the distance between the focal plane of the camera and the actor cannot be obtained in time, The focus is severely delayed, causing the image to be out of focus, when the image is out of focus After that, the video target tracking cannot effectively identify the target, and the ranging sensor cannot accurately focus, reducing the efficiency of the automatic focus.
  • the invention provides a focus-focusing system based on a plurality of ranging methods, which adopts a plurality of ranging methods to perform a focus-focus operation on a focus, so that it has the advantage of improving the efficiency of automatic focus-focusing.
  • a focus tracking system based on a plurality of ranging methods is provided, wherein the focus tracking system based on a plurality of ranging methods is used to adjust a focus of the camera device, and the system includes: a focusing device, a pan/tilt, and a computing device; wherein the cloud platform comprises: a ranging sensor, the system further comprising: a wireless ranging device; the wireless ranging device comprises: a wireless ranging main module, at least one wireless ranging slave module and a computing module; The distance from the main module and the camera device is fixed, and the distance of the at least one wireless ranging from the position of the module to the at least one focus target is fixed;
  • a computing device configured to receive video data output by the camera device, and calculate a two-dimensional coordinate of the focus target in the video data according to the video data;
  • a distance measuring sensor configured to measure a first distance between a focal plane of the camera and a target
  • a cloud platform for acquiring the two-dimensional coordinates, and controlling the pan-tilt movement according to the two-dimensional coordinates
  • a calculating module configured to calculate a second distance between the wireless ranging main module and the wireless ranging slave module according to a wireless signal transmission time between the wireless ranging main module and the wireless ranging slave module ;
  • the focusing device is configured to adjust the focus of the camera device according to the second distance and the lens data if the distance difference between the first distance and the second distance is greater than or equal to the distance threshold.
  • the focusing device is further configured to adjust a focus of the imaging device according to the first distance and the lens data, such that the distance difference between the first distance and the second distance is less than a distance threshold.
  • the focusing device is further configured to: when the video target tracking software of the computing device does not recognize the target according to the video data, adjust the focus of the camera according to the second distance and the lens data.
  • the second distance L is calculated according to a preset formula, where the preset formula is specifically:
  • t0 is the time when the wireless ranging main module sends the distance acquisition message
  • t3 is the time when the wireless ranging main module receives the response message of the distance acquisition message
  • t2 is the wireless ranging from the module sending the response cancellation
  • t1 is the time when the wireless ranging receives the distance acquisition message from the module
  • C is the radio wave propagation speed.
  • a focus method based on a plurality of ranging methods is provided, and the method is applied to a focus tracking system based on a plurality of ranging methods provided by the first aspect, the method comprising:
  • FIG. 3 is a flowchart of a method for following a focus of various ranging methods according to a fourth preferred embodiment of the present invention.
  • the above-mentioned imaging device does not belong to a device in a focus-focusing system based on a plurality of ranging methods
  • a focusing system based on a plurality of ranging methods needs to focus the imaging device, and in general, based on a plurality of ranging methods
  • the focus system and camera unit are used in unison.
  • the computing device 105 may be a device such as a tablet computer, a smart phone, or a personal computer.
  • the specific preferred embodiment of the computing device is not limited in the first preferred embodiment of the present invention.
  • the video data may be the receiving camera 103.
  • Video data of the video capture card, the format of the video data may also be various, for example, video data in the H.263, H.264, MPEG-4 or MPEG-6 format, the first preferred embodiment of the present invention The specific form of the above video format is not limited.
  • the computing device calculates the two-dimensional coordinates of the focus target in the video data using video object tracking software installed in the computing device.
  • the distance measuring sensor 1041 is configured to measure a first distance between the focal plane of the camera 103 and the target of the focus;
  • the ranging sensor 1041 may be specifically a laser ranging sensor or an ultrasonic ranging sensor.
  • the manner in which the ranging sensor obtains the first distance may be in a manner of the prior art, and the first preferred embodiment of the present invention is used for the ranging.
  • the manner in which the sensor obtains the first distance is not limited.
  • the ranging sensor may also adopt other types of ranging sensors, and the specific preferred form of the above-mentioned ranging sensor is also used in the first preferred embodiment of the present invention. Not limited.
  • the cloud platform 104 is configured to acquire the two-dimensional coordinates, and adjust the pan-tilt movement according to the two-dimensional coordinates to make the ranging sensor 1041 point to the focus target;
  • the manner in which the pan/tilt head 104 obtains the two-dimensional coordinates may be in various manners, for example, in the first comparison of the present invention.
  • the method may be obtained by means of wireless transmission.
  • the method may be obtained by a wired manner, and the specific embodiment of the present invention is not The specific representation of the above two-dimensional coordinates is defined.
  • the pan/tilt controls the motor of the pan/tilt to move the gimbal according to the two-dimensional coordinates, so that the ranging sensor 1041 disposed on the pan/tilt head 104 is directed to the target of the focus.
  • the calculating module 1013 is configured to calculate a second distance between the wireless ranging main module 1011 and the wireless ranging slave module 1012 according to the wireless signal transmission time between the wireless ranging main module 1011 and the wireless ranging slave module 1012;
  • the focusing device 102 is configured to adjust the focus of the imaging device 103 according to the second distance and the lens data, if the distance difference between the first distance and the second distance is greater than or equal to the distance threshold.
  • the main reason that the focusing device 102 adopts the focusing strategy is that after the wireless ranging device is added, two ranging data can be received (that is, the first distance and the second distance can be obtained), and one way is installed on the PTZ.
  • the above-mentioned ranging sensor that is, the first distance, generally a laser ranging sensor or an ultrasonic ranging sensor, has high ranging accuracy, but sometimes cannot accurately point to an actor (focus target); the other is wireless ranging, that is, the second distance , the ranging accuracy is low, and when there is occlusion between the wireless ranging main module and the slave module, The ranging error is large, and the advantage is that the approximate second distance can always be output.
  • Most of the wireless ranging data is used as reference data.
  • the ranging sensor on the gimbal accurately points to the actor (focus target) ), using the value of laser ranging and lens data to control the rotation of the lens FOCUS circle, when the deviation between the laser ranging data and the wireless ranging data exceeds a certain range, it is considered that the ranging sensor on the gimbal does not accurately point to the actor (focus Target), using the second distance minus a distance offset value and lens data to control the lens FOCUS circle rotation.
  • the focusing device 102 is further configured to adjust a focus of the imaging device 103 according to the first distance and the lens data, such that the distance difference between the first distance and the second distance is less than a distance threshold.
  • the implementation manner of adjusting the imaging device according to the first distance and the lens data in the above steps may specifically: adjusting the angle of rotation of the focus ring of the lens according to the first distance and the lens data, which may be: calculating according to the first distance and the distance deviation adjusting the distance L1 adjusted (e.g., increase or decrease the distance from the second deviation); rotated from the query list L1 corresponding to the focus ring tone according to the angle of L1 tone map pre-stored distance of the focus ring rotation angle.
  • ⁇ n is the rotation angle of the lens, indicating that the lens focus ring is rotated from the initial position to the current position, and the lens focus ring is rotated. Angle.
  • This kind of setting is because the first distance detected by the distance measuring sensor is within the set range at this time, and the working is normal at this time, so no adjustment is needed, and the focus of the imaging device can be directly adjusted by using the first distance and the lens data.
  • the focusing device 102 is further configured to: when the computing device does not recognize the target according to the video data, adjust the focus of the camera 103 according to the second distance and the lens data.
  • the method for judging the above-mentioned unidentified target may adopt the prior art judging method.
  • the video object tracking software may be used to determine whether there is a tracking target.
  • other methods may be used to obtain whether there is a tracking target.
  • FIG. 2 is a focusing system based on multiple ranging methods according to a second preferred embodiment of the present invention, and includes the following modules for converting a video signal 10 output by a camera into a tablet computer 12;
  • the tablet computer has a touch screen function, and is pre-installed with video target tracking software for receiving the video signal output by the video capture card 11, and the coordinates of the target relative to the image from the COM communication port Output; for receiving the coordinate signal outputted by the tablet 12, the distance sensor 21, that is, the distance data output by the laser ranging sensor, the distance data output by the wireless ranging main module 17, and controlling the pan/tilt motor driver 14, the motor 15, and the motor 16 Lens FOCUS motor driver 23, the main controller stores the lens data; the FOCUS motor 24 for driving the rotation of the lens FOCUS circle; the pan/tilt motor 15 and the pan/tilt motor 16 for driving the horizontal and vertical movement of the gimbal respectively;
  • the distance module is fixed to the actor (
  • the computing device 105 is configured to receive video data output by the camera device 103, and calculate a two-dimensional coordinate of the focus target in the video data according to the video data;
  • the cloud platform 104 is configured to acquire the two-dimensional coordinates, and adjust the pan-tilt movement according to the two-dimensional coordinates to make the ranging sensor 1041 point to the focus target;
  • the ranging sensor 1041 may be specifically a laser ranging sensor or an ultrasonic ranging sensor.
  • the manner in which the ranging sensor obtains the first distance may be in a manner of the prior art, and the first preferred embodiment of the present invention is used for the ranging.
  • the manner in which the sensor obtains the first distance is not limited.
  • the ranging sensor may also adopt other types of ranging sensors, and the specific preferred form of the above-mentioned ranging sensor is also used in the first preferred embodiment of the present invention. Not limited.
  • the focusing device 102 is further configured to adjust the focus of the camera device 103 according to the second distance and the lens data, such as the first distance and the distance difference between the first distance and the second distance.
  • the distance difference between the second distances is less than the distance threshold, and the focus of the imaging device 103 is adjusted according to the first distance and the lens data.
  • the focus of the above-mentioned adjustment camera 103 is to make the target of the tracking clear, because for the movie, the target to be tracked (ie, the shooting target) is clear, so it is necessary to adjust the focus to achieve accurate focusing to achieve the tracking target image clear. purpose.
  • the second preferred embodiment of the present invention enables automatic focusing of target tracking in any case.
  • the second preferred embodiment of the present invention has the advantage of using a high-precision feature of a ranging sensor (generally a laser ranging sensor or an ultrasonic ranging sensor) to make the focus accurate.
  • a ranging sensor generally a laser ranging sensor or an ultrasonic ranging sensor
  • the motion of the gimbal will have a certain delay, and the target cannot be pointed to the target in real time, and the ranging sensor cannot point to the target in real time, and the wireless ranging can output a substantially accurate value.
  • the rotation angle of the lens FOCUS circle is not too large to deviate from the target focus, so the focus speed is fast. According to the deviation between the distance value output by the ranging sensor and the distance value of the wireless ranging output, it can be determined whether the ranging sensor accurately points to the target.
  • the third preferred embodiment of the present invention further provides a focus tracking system based on multiple ranging methods, and the system may specifically include: a wireless ranging device 101, a focusing device 102, a cloud platform 104, and a computing device 105;
  • the station 104 may include a ranging sensor 1041, and the wireless ranging device 101 may include: a wireless ranging main module 1011, at least one wireless ranging slave module 1012, and a computing module 1013; wherein the wireless ranging main module 1012 and the PTZ The distance between the two is fixed, and the distance of the at least one wireless ranging from the module 1012 to the target of the focus is fixed;
  • the relative position of the above wireless ranging from the module to the actor does not need to be strictly limited, such as focusing on the actor's face, the wireless ranging from the module can be placed in the jacket pocket, or in the trouser pocket.
  • the distance from the focal plane of the camera to the face of the actor is not equal to the distance from the focal plane of the camera to the slave module.
  • the ranging sensor on the pan/tilt accurately points to the face, the ranging sensor outputs high-precision data according to the preset.
  • the distance deviation and other parameters can calculate the distance difference between the focal plane of the camera and the face of the actor and the slave module. After obtaining the distance difference, the distance between the focal plane of the camera and the face of the actor can be corrected in real time.
  • the computing device 105 is configured to receive video data output by the camera device 103, and calculate a two-dimensional coordinate of the focus target in the video data according to the video data;
  • the computing device 105 may be specifically a device such as a tablet computer, a smart phone, or a personal computer.
  • the first preferred embodiment of the present invention is not limited to the specific representation of the computing device.
  • the video data may be video data of the video capture card of the receiving camera 103, and the format of the video data may also be multiple.
  • the video data in the H.263, H.264, MPEG-4 or MPEG-6 format may be used.
  • the first preferred embodiment of the present invention does not limit the specific expression of the video format.
  • the computing device is configured to calculate a two-dimensional coordinate of the focus target in the video data using video target tracking software installed in the computing device.
  • the ranging sensor can be directed to the focus target according to the two-dimensional coordinates.
  • the cloud platform 104 is configured to acquire the two-dimensional coordinates, and adjust the pan-tilt movement according to the two-dimensional coordinates to make the ranging sensor 1041 point to the focus target;
  • the manner in which the cloud platform 104 obtains the two-dimensional coordinates may be in various manners.
  • the method may be obtained by wireless transmission, of course, in the first preferred embodiment of the present invention.
  • the method may be obtained by a wired manner, and the specific embodiment of the present invention does not limit the specific representation of the two-dimensional coordinates.
  • the pan/tilt controls the motor of the pan/tilt to move the gimbal according to the two-dimensional coordinates, so that the ranging sensor 1041 disposed on the pan/tilt head 104 is directed to the target of the focus.
  • the distance measuring sensor 1041 is configured to measure a first distance between the focal plane of the camera 103 and the target of the focus;
  • the ranging sensor 1041 may be specifically a laser ranging sensor or an ultrasonic ranging sensor.
  • the manner in which the ranging sensor obtains the first distance may be in a manner of the prior art, and the first preferred embodiment of the present invention is used for the ranging.
  • the manner in which the sensor obtains the first distance is not limited.
  • the ranging sensor may also adopt other types of ranging sensors, and the specific preferred form of the above-mentioned ranging sensor is also used in the first preferred embodiment of the present invention. Not limited.
  • the calculating module 1013 is configured to calculate a second distance between the wireless ranging main module 1011 and the wireless ranging slave module 1012 according to the wireless signal transmission time between the wireless ranging main module 1011 and the wireless ranging slave module 1012;
  • the focusing device 102 is further configured to adjust the focus of the imaging device 103 according to the second distance and the lens data to achieve accurate focusing of the imaging device 103 when the computing device does not recognize the target according to the video data.
  • the case of the third preferred embodiment of the present invention generally occurs when the power is turned on, and the situation is generally open.
  • the machine will appear, because the distance sensor has not yet entered the optimal working state when the machine is turned on, and the video target tracking software of the computing device cannot achieve normal tracking. At this time, the computing device cannot recognize the target according to the video data. In this state, it is very convenient to adjust the focus of the image pickup device 103 by the second distance at this time.
  • the method for judging the above-mentioned unidentified target may adopt the prior art judging method.
  • the video object tracking software may be used to determine whether there is a tracking target.
  • other methods may be used to obtain whether there is a tracking target.
  • the time at which the message is obtained, C can be the propagation speed, generally the speed of light; the above t2 and t1 can be carried in the response message.
  • the response message may not carry t2 and t1, and the user can
  • the module is set such that the difference of t2-t1 is a fixed value, for example, 0.1 s, and of course other values, such as 0.2 s.
  • FIG. 3 is a method for following a focus based on multiple ranging methods according to a fourth preferred embodiment of the present invention.
  • the method is based on multiple measurements provided by the first, second, and third preferred embodiments of the present invention. Executed from the system, the method is as shown in FIG. 4, and includes the following steps:
  • the foregoing step S401 may be performed by the computing device 105 based on the plurality of ranging systems.
  • the fourth preferred embodiment of the present invention does not limit the specific representation of the computing device.
  • the video data may be the video of the receiving camera 103.
  • the video data of the capture card may be in a plurality of formats, for example, video data in the H.263, H.264, MPEG-4 or MPEG-6 format, and the fourth preferred embodiment of the present invention
  • the specific form of the video format is not limited.
  • the computing device is configured to calculate a two-dimensional coordinate of the focus target in the video data using video target tracking software installed in the computing device.
  • Step S402 measuring a first distance between the focal plane of the camera and the target of the focus, according to the second The dimensional coordinates adjust the movement of the gimbal;
  • step S402 can be implemented by using the ranging sensor 1041 in the plurality of ranging systems, and the implementation manner thereof can be specifically adopted in the prior art manner.
  • the manner in which the fourth preferred embodiment of the present invention acquires the first distance is not limited. .
  • the movement of the pan/tilt is to adjust the movement of the gimbal according to the two-dimensional coordinates so that the ranging sensor accurately points to the target.
  • Step S403 calculating a second distance between the wireless ranging main module and the wireless ranging slave module according to the wireless signal transmission time between the wireless ranging main module and the wireless ranging slave module;
  • the implementation method of the foregoing step S403 may specifically be: acquiring the transmission time t0 of the distance acquisition message of the wireless ranging master template and the receiving time t3 of the distance acquisition response message, acquiring the distance acquisition message receiving time t2 and distance acquisition of the wireless ranging slave module.
  • the transmission time t1 of the corresponding message, the second distance L [(t3-t0)-(t2-t1)]*C/2; wherein C can be the wireless signal propagation speed, generally the speed of light.
  • Step S404 If the distance difference between the first distance and the second distance is greater than or equal to the distance threshold, adjust the focus of the imaging device according to the second distance and the lens data to achieve accurate focusing of the imaging device.
  • the method may further include: if the distance difference between the first distance and the second distance is less than the distance threshold, adjusting the focus of the camera 103 according to the first distance and the lens data.
  • the method may further include: adjusting, when the computing device does not identify the target according to the video data, adjusting the focus of the camera 103 according to the second distance and the lens data.
  • the embodiment of the present invention further provides a photographing system 500.
  • the photographing system 500 includes: an image capturing device 103 and a focus tracking system 100 based on a plurality of ranging methods, based on a plurality of measurements.
  • a focus tracking system 100 based on a plurality of ranging methods, based on a plurality of measurements.
  • EEPROM Electrically Error Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory
  • Any connection may suitably be a computer readable medium.
  • the software uses coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless such as infrared, radio, and microwave Where technology is transmitted from a website, server or other remote source, then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, wireless and microwave are included in the fixing of the associated medium.
  • DSL Digital Subscriber Line

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Studio Devices (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

La présente invention a trait à un système de suivi de point (100) basé sur plusieurs approches de télémétrie. Le système de suivi de point (100) basé sur plusieurs approches de télémétrie sert à la mise au point d'un dispositif de photographie (103). Ce système (100) comprend un dispositif de mise au point (102), un panoramique horizontal-vertical (104) et un dispositif informatique (105), le panoramique horizontal-vertical (104) incluant un capteur de télémétrie (1041). Ledit système (100) comporte en outre un dispositif de télémétrie sans fil (101). Le dispositif de télémétrie sans fil (101) comprend un module de télémétrie sans fil maître (1011), au moins un module de télémétrie sans fil esclave (1012), et un module informatique (1013). La distance entre le module de télémétrie sans fil maître (1011) et le panoramique horizontal-vertical (104) est fixe, et la distance entre ledit module de télémétrie sans fil esclave (1012) et une cible de suivi de point est fixe. Le système de suivi de point (100) basé sur plusieurs approches de télémétrie améliore l'efficacité de suivi de point automatique, ce qui permet d'obtenir un suivi de point plus précis.
PCT/CN2016/070300 2016-01-06 2016-01-06 Système et procédé de suivi de point basés sur plusieurs approches de télémétrie, et système de photographie WO2017117749A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201680000519.7A CN105874384B (zh) 2016-01-06 2016-01-06 基于多种测距方式的跟焦***、方法及拍摄***
PCT/CN2016/070300 WO2017117749A1 (fr) 2016-01-06 2016-01-06 Système et procédé de suivi de point basés sur plusieurs approches de télémétrie, et système de photographie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/070300 WO2017117749A1 (fr) 2016-01-06 2016-01-06 Système et procédé de suivi de point basés sur plusieurs approches de télémétrie, et système de photographie

Publications (1)

Publication Number Publication Date
WO2017117749A1 true WO2017117749A1 (fr) 2017-07-13

Family

ID=56655551

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/070300 WO2017117749A1 (fr) 2016-01-06 2016-01-06 Système et procédé de suivi de point basés sur plusieurs approches de télémétrie, et système de photographie

Country Status (2)

Country Link
CN (1) CN105874384B (fr)
WO (1) WO2017117749A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112083246A (zh) * 2020-09-11 2020-12-15 四川长虹教育科技有限公司 一种触摸显示设备***延时测量装置及方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108521860A (zh) * 2017-06-22 2018-09-11 深圳市大疆创新科技有限公司 拍摄设备的控制方法、拍摄设备及***
CN107918278B (zh) * 2017-11-16 2021-01-19 江苏省生产力促进中心 一种影视镜头自动跟焦方法
CN112188089A (zh) * 2020-09-22 2021-01-05 北京小米移动软件有限公司 距离获取方法及装置、焦距调节方法及装置、测距组件
CN113678427B (zh) * 2020-09-22 2023-06-02 深圳市大疆创新科技有限公司 拍摄控制方法、装置、云台、跟焦器电机及存储介质
WO2022061522A1 (fr) * 2020-09-22 2022-03-31 深圳市大疆创新科技有限公司 Procédé et appareil de commande de photographie
CN113841383B (zh) * 2020-09-22 2023-04-04 深圳市大疆创新科技有限公司 拍摄控制方法、装置、云台及跟焦器电机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020025152A1 (en) * 2000-08-24 2002-02-28 Olympus Optical Co., Ltd. Distance measuring apparatus and distance measuring method
CN102256109A (zh) * 2011-06-07 2011-11-23 上海芯启电子科技有限公司 多目标自动跟踪摄像***及该***的聚焦方法
CN104010131A (zh) * 2014-05-05 2014-08-27 深圳市莫孚康技术有限公司 一种摄影机自动跟焦装置和方法
CN104822019A (zh) * 2015-03-31 2015-08-05 深圳市莫孚康技术有限公司 计算摄影机视场角的方法
CN104822020A (zh) * 2015-03-31 2015-08-05 深圳市莫孚康技术有限公司 基于视频目标跟踪的自动跟焦装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001289613A (ja) * 2000-04-03 2001-10-19 Canon Inc オートフォーカス方法
JP4670545B2 (ja) * 2005-08-16 2011-04-13 富士ゼロックス株式会社 画像撮影装置
CN102801914A (zh) * 2012-08-21 2012-11-28 深圳市影歌科技有限公司 一种数码相机电子跟焦器及变焦方法
CN102970058B (zh) * 2012-12-17 2014-08-20 中国石油大学(华东) 一种基于固定周转时延的超宽带无线测距方法
CN104883502A (zh) * 2015-05-19 2015-09-02 广东欧珀移动通信有限公司 移动终端的对焦方法及装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020025152A1 (en) * 2000-08-24 2002-02-28 Olympus Optical Co., Ltd. Distance measuring apparatus and distance measuring method
CN102256109A (zh) * 2011-06-07 2011-11-23 上海芯启电子科技有限公司 多目标自动跟踪摄像***及该***的聚焦方法
CN104010131A (zh) * 2014-05-05 2014-08-27 深圳市莫孚康技术有限公司 一种摄影机自动跟焦装置和方法
CN104822019A (zh) * 2015-03-31 2015-08-05 深圳市莫孚康技术有限公司 计算摄影机视场角的方法
CN104822020A (zh) * 2015-03-31 2015-08-05 深圳市莫孚康技术有限公司 基于视频目标跟踪的自动跟焦装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112083246A (zh) * 2020-09-11 2020-12-15 四川长虹教育科技有限公司 一种触摸显示设备***延时测量装置及方法

Also Published As

Publication number Publication date
CN105874384B (zh) 2019-07-16
CN105874384A (zh) 2016-08-17

Similar Documents

Publication Publication Date Title
WO2017117749A1 (fr) Système et procédé de suivi de point basés sur plusieurs approches de télémétrie, et système de photographie
KR102143456B1 (ko) 심도 정보 취득 방법 및 장치, 그리고 이미지 수집 디바이스
CN102984530B (zh) 图像处理***及自动对焦方法
CN103776419B (zh) 一种提高测量范围的双目视觉测距方法
CN109120883B (zh) 基于远近景的视频监控方法、装置及计算机可读存储介质
CN108028887B (zh) 一种终端的拍照对焦方法、装置及设备
US20160295097A1 (en) Dual camera autofocus
CN104469168A (zh) 摄像模组及其自动对焦方法
CN104469169A (zh) 相位测距摄像模组及其自动对焦方法
CN108833795B (zh) 一种图像获取设备的对焦方法及装置
CN108007426B (zh) 一种摄像头测距方法
CN105245768A (zh) 一种焦距调节方法、装置和终端
US20210051262A1 (en) Camera device and focus method
WO2017070884A1 (fr) Système et procédé de mise au point d'image en fonction de la mesure de distance sans fil et système de photographie
CN104822019A (zh) 计算摄影机视场角的方法
CN104571135A (zh) 一种云台追踪摄影***和云台追踪摄影方法
JP2014021328A (ja) 立体映像撮影システムに用いる光学装置
CN110602376B (zh) 抓拍方法及装置、摄像机
WO2017117750A1 (fr) Système de suivi de mise au point (follow focus) simple, basé sur une pluralité d'approches télémétriques, et système photographique
KR101674298B1 (ko) 카메라 렌즈 초점거리 정보를 이용한 거리계산 방법
CN105301279B (zh) 一种基于摄像头的速度测量方法、装置及移动终端
US10880536B2 (en) Three-dimensional image capturing device and method
CN117294938A (zh) 摄像头对焦方法、装置、电子设备及计算机可读存储介质
CN113906362A (zh) 测绘相机的控制方法、测绘相机、无人机以及测绘***
WO2017201730A1 (fr) Système et procédé de focalisation d'images sur la base d'une mesure de distance par lidar

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16882894

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 17.10.2018)

122 Ep: pct application non-entry in european phase

Ref document number: 16882894

Country of ref document: EP

Kind code of ref document: A1