CN105681728B - Video processing method and device - Google Patents
Video processing method and device Download PDFInfo
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- CN105681728B CN105681728B CN201610094947.2A CN201610094947A CN105681728B CN 105681728 B CN105681728 B CN 105681728B CN 201610094947 A CN201610094947 A CN 201610094947A CN 105681728 B CN105681728 B CN 105681728B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
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Abstract
the application provides a video processing method and device, which can present videos aiming at environments of different meeting places and effectively improve the impression experience of users. The method comprises the following steps: the central control equipment receives a video sent by the video conference terminal; receiving a value of an environmental parameter of a meeting place where another video conference terminal is located, which is sent by another video conference terminal; acquiring an adjusted video according to the value of the environmental parameter and the video; and sending the adjusted video to the other video conference terminal. For adjusting the video.
Description
Technical Field
The invention relates to the field of multipoint video conference systems, in particular to a video processing method and device.
Background
A multipoint Video Conference system (MPVCS) which allows Video Conference terminals (Video Conference terminals) at different locations to participate simultaneously. The system further includes a central Control device, such as but not limited to a Multi-point Control Unit (MCU). The video conference terminal sends media streams to the central control device through the network, the media streams comprise videos and audios, the central control device is responsible for receiving the media streams sent by the video conference terminals through the network, the central control device combines one or at least two received videos into one video to be transmitted to the video conference terminals, and meanwhile, audio streams corresponding to the videos are mixed and then transmitted to the video conference terminals. It should be noted that the video transmitted by the central control device does not take into account the influence of the meeting environment on the user's sensory experience.
Disclosure of Invention
The invention aims to provide a video processing method and a video processing device, which can present videos aiming at environments of different meeting places and effectively improve the impression experience of users.
The above and other objects are achieved by the features of the independent claims. Further implementations are presented in the dependent claims, the description and the drawings.
In a first aspect, a video processing method is provided, including:
Firstly, a central control device receives a video sent by a video conference terminal, and when the central control device needs to send the video to another video conference terminal for a user of a conference place where another video conference terminal is located to watch, the central control device receives a value of an environment parameter of the conference place where another video conference terminal is located, which is sent by another video conference terminal;
and then, the central control equipment acquires the adjusted video according to the value of the environmental parameter and the video, and sends the adjusted video to the other video conference terminal.
in the video processing method provided by the first aspect, before sending a video to another video conference terminal, the central control device obtains the adjusted video according to the value of the environmental parameter and the video. Therefore, the video suitable for the meeting place environment of the other video conference terminal is presented according to the real environment of the meeting place where the other video conference terminal is located, and the impression experience of the user is effectively improved.
In a first implementable manner of the first aspect, the obtaining, by the central control device, an adjusted video according to the value of the environmental parameter and the video includes:
The central control equipment determines a reference value of a display effect parameter of the other video conference terminal according to the value of the environment parameter, wherein the display effect parameter of the other video conference terminal comprises at least one of brightness, color temperature, hue, saturation, contrast, refreshing frequency and resolution;
and the central control equipment acquires the adjusted video according to the reference value of the display effect parameter of the other video conference terminal and the video.
With reference to the first implementable manner of the first aspect, in a second implementable manner of the first aspect, the obtaining, by the central control device, the adjusted video according to the reference value of the display effect parameter of the another video conference terminal and the video includes:
The central control device judges whether an initial difference value is within a preset range, wherein the initial difference value is a difference value between a reference value of a display effect parameter of the other video conference terminal and a value of the display effect parameter of the video;
if the initial difference value is not within the preset range, the central control device adjusts the video according to the reference value of the display effect parameter of the other video conference terminal, so as to obtain the adjusted video, wherein the difference value between the value of the display effect parameter of the adjusted video and the reference value of the display effect parameter of the other video conference terminal is within the preset range.
With reference to the first aspect, any one of the first implementable manner of the first aspect, and the second implementable manner of the first aspect, in a third implementable manner of the first aspect, the environment parameter includes at least one of a visual environment parameter and a non-visual environment parameter.
With reference to the third implementable manner of the first aspect, in a fourth implementable manner, the determining, by the central control device and according to the value of the environment parameter, the reference value of the display effect parameter of the other video conference terminal includes:
The central control equipment takes the value of the visual environment parameter as an initial value of the display effect parameter of the other video conference terminal;
and the central control equipment adjusts the initial value of the display effect parameter of the other video conference terminal according to the value of the non-visual environment parameter and a preset rule, so as to obtain a reference value of the display effect parameter of the other video conference terminal.
In a second aspect, a video processing method is provided, including:
A video conference terminal acquires the value of the environmental parameter of a conference place where the video conference terminal is located;
The video conference terminal sends the value of the environmental parameter to a central control device;
The video conference terminal receives an adjusted video from the central control device, wherein the adjusted video is obtained according to the value of the environmental parameter and the video of another video conference terminal;
and the video conference terminal displays the adjusted video.
In the video processing method provided by the second aspect, after the video conference terminal sends the value of the environmental parameter of the conference place where the video conference terminal is located to the central control device, the central control device obtains the adjusted video according to the value of the environmental parameter and the video, and the video conference terminal receives the adjusted video from the central control device and displays the adjusted video. Therefore, the video suitable for the meeting place environment of the other video conference terminal is presented according to the real environment of the meeting place where the other video conference terminal is located, and the impression experience of the user is effectively improved.
in a first implementable manner of the second aspect, before the video conference terminal sends the value of the environmental parameter of the conference place where the video conference terminal is located to the central control device, the method further comprises:
And the video conference terminal receives an environment parameter request message from the central control equipment, wherein the environment parameter request message is used for requesting the value of the environment parameter of the conference place where the video conference terminal is located.
With reference to the second aspect or the first implementable manner of the second aspect, in a second implementable manner of the second aspect, the environmental parameter includes at least one of a visual environmental parameter and a non-visual environmental parameter.
With reference to the second implementable manner of the second aspect, in a third implementable manner of the second aspect, the visual environment parameter is a parameter of an image of a meeting place where the video conference terminal is located, and the visual environment parameter includes at least one of brightness, color temperature, hue, saturation, and contrast.
With reference to the second implementable manner of the second aspect or the third implementable manner of the second aspect, in a fourth implementable manner of the second aspect, the non-visual environment parameter includes at least one of an environment temperature of a meeting place where the video conference terminal is located, a current time, an environment noise of the meeting place where the video conference terminal is located, and an environment vibration of the meeting place where the video conference terminal is located.
In a third aspect, there is provided a central control apparatus comprising: the video conference system comprises a receiving unit used for receiving a video sent by a video conference terminal and receiving a value of an environment parameter of a conference place where another video conference terminal is located and sent by another video conference terminal, a processing unit used for obtaining an adjusted video according to the value of the environment parameter received by the receiving unit and the video, and a sending unit used for sending the adjusted video obtained by the processing unit to the another video conference terminal. The specific implementation manner may refer to a function of behavior of the central control device in the video processing method provided in the first aspect.
In a fourth aspect, there is provided a video conference terminal comprising: the sensing unit is used for acquiring the value of the environmental parameter of the meeting place where the video conference terminal is located; the sending unit is used for sending the value of the environmental parameter obtained by the sensing unit to central control equipment; the receiving unit is used for receiving the adjusted video from the central control equipment, and the display unit is used for displaying the adjusted video received by the receiving unit. Specific implementation manners may refer to functions of behaviors of the video conference terminal in the video processing method provided by the second aspect.
It should be noted that the functional modules described in the third aspect and the fourth aspect may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described functions. For example, a communication interface for performing the functions of the receiving unit and the transmitting unit, and a processor for performing the functions of the processing unit. The processor and the communication interface are connected through a bus and complete mutual communication. Specifically, reference may be made to a function of behavior of the central control device in the video processing method provided in the first aspect, and a function of behavior of the video conference terminal in the video processing method provided in the second aspect.
in the invention, the names of the central control equipment and the video conference terminal do not limit the equipment per se, and in practical implementation, the equipment can appear by other names. Provided that the respective devices function similarly to the present invention, are within the scope of the claims of the present invention and their equivalents.
these and other aspects of the invention are apparent from and will be elucidated with reference to the embodiments described hereinafter.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
fig. 1 is a schematic diagram of a multipoint video conference system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a computer device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another computer device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another computer device according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another computer apparatus according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of another computer apparatus according to an embodiment of the present invention;
Fig. 7 is a flowchart of a video processing method according to an embodiment of the present invention;
FIG. 8 is a flow chart of another video processing method according to an embodiment of the present invention;
Fig. 9 is a schematic structural diagram of a central control device according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a video conference terminal according to an embodiment of the present invention.
Detailed Description
the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention.
The basic principle of the invention is that: usually, the central control device only performs uniform optimization processing on the acquired videos of each meeting place and transmits the videos to other meeting places, but because each meeting place has different environments, the videos can only be relatively consistent on the display, and the videos cannot be presented aiming at different environments, so that the viewing experience of a user is low. Before sending the video to the video conference terminal, the central control device of the invention firstly obtains the adjusted video according to the value of the environmental parameter of the conference place where the video conference terminal is located and the video sent to the video conference terminal, so that the adjusted video conforms to the environment of the conference place where the video conference terminal is located. Therefore, the video suitable for the environment of the local terminal meeting place is presented for the local terminal meeting place according to the real environment of the local terminal meeting place, and therefore the impression experience of the user is effectively improved.
Example 1
An embodiment of the present invention provides a schematic diagram of a multipoint video conference system, as shown in fig. 1, including: the video conference system comprises a central control device, a network, a first video conference terminal, a second video conference terminal, a third video conference terminal, a fourth video conference terminal and a fifth video conference terminal. The central control equipment, the first video conference terminal, the second video conference terminal, the third video conference terminal, the fourth video conference terminal and the fifth video conference terminal are respectively connected with the network.
The five video conference terminals can be located in different places, such as Shenzhen meeting place, Beijing meeting place, Shanghai meeting place, Chengdu meeting place and xi' an meeting place. The invention is not limited to the location of the conference, and can be used in other conference places, which are only schematically illustrated here.
The video conference terminal, that is, the multimedia communication terminal device, may be a desktop video terminal, and may also be other multimedia communication terminal devices. The video conference terminal is used for acquiring signals such as videos, audios and the like of a conference place where the video conference terminal is located and transmitting the signals to other video conference terminals or central control equipment through a network. The video conference terminal may also be connected to a display device, such as a television set, which acts as a playback device to display video. A video conference terminal typically includes a core codec, a camera, an omnidirectional microphone, and a remote controller. The core codec is used for sending the image and sound codes input by the camera and the microphone through a network, simultaneously reducing the image to the display equipment after decoding the video transmitted by the network, reducing the sound to the sound after decoding the audio stream transmitted by the network, and realizing the real-time interaction with other video conference terminals.
The central control equipment is used for switching the input multi-channel conference signals, and the conference signals comprise at least one of audio, video and data. The central control device transmits the audio signals in a multi-channel mixing mode or a switching mode, transmits the video signals in a direct distribution mode, and transmits the data signals in a broadcasting mode or a Lossless audio coding (MLP) mode. In addition, the central control device also needs to complete the processing of the communication control signals and the network interface signals.
currently, the mainstream central Control device has a Multi-point Control Unit (MCU), and the Multi-point Control Unit may be replaced by other devices for implementing the same function in the future, which is within the scope of the present invention.
The network may be an IP network for transmitting signals between the central control device and the video conference terminals of the different conference sites. The network may be other forms of transmission networks, and the invention is not limited thereto.
as shown in fig. 2, the central control device and the video conference terminal in fig. 1 may be implemented in the form of a computer device (or system) in fig. 2.
Fig. 2 is a schematic diagram of a computer device according to an embodiment of the present invention. The computer device 100 comprises at least one processor 101, a communication bus 102, a memory 103 and at least one communication interface 104.
processor 101 may be a single processor or may be a collective term for multiple processing elements. For example, the processor 101 may be a general-purpose Central Processing Unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program according to the present invention, such as: one or more microprocessors (digital signal processors, DSP for short), or one or more Field Programmable Gate arrays (FPGA for short).
In particular implementations, processor 101 may include one or more CPUs such as CPU0 and CPU1 in fig. 2, for example, as an example.
In particular implementations, computer device 100 may include multiple processors, such as processor 101 and processor 105 in FIG. 2, as an example. Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).
The communication bus 102 may be an Industry Standard Architecture (ISA) bus, an external device interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 2, but it is not intended that there be only one bus or one type of bus.
The Memory 103 may be a Read-Only Memory (ROM) or other types of static storage devices that can store static information and instructions, a Random Access Memory (RAM) or other types of dynamic storage devices that can store information and instructions, an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-on Memory (CD-ROM) or other optical Disc storage, optical Disc storage (including Compact Disc, laser Disc, optical Disc, digital versatile Disc, blu-ray Disc, etc.), a magnetic Disc storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto. The memory may be self-contained and coupled to the processor via a bus. The memory may also be integral to the processor.
The memory 103 is used for storing application program codes for executing the scheme of the invention, and the processor 101 controls the execution. The processor 101 is configured to execute application program code stored in the memory 103.
The communication interface 104 may be any transceiver or other communication device for communicating with other devices or communication Networks, such as ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc. The communication interface 104 may include a receiving unit implementing a receiving function and a transmitting unit implementing a transmitting function.
in one embodiment, the computer device 100 shown in FIG. 2 may be the central control device of FIG. 1.
And the communication interface 104 is used for receiving the video sent by the video conference terminal.
The communication interface 104 is further configured to receive a value of an environmental parameter of a conference place where another video conference terminal is located, where the value is sent by the another video conference terminal.
the communication interface 104 is further configured to send the adjusted video to the other video conference terminal.
and the processor 101 is configured to obtain an adjusted video according to the value of the environmental parameter and the video. Specifically, a reference value of a display effect parameter of another video conference terminal is determined according to the value of the environmental parameter, and then the adjusted video is obtained according to the reference value of the display effect parameter of another video conference terminal and the video.
and the memory 103 is used for storing the values of the environmental parameters of the conference place where the video conference terminal is positioned. The environmental parameter includes at least one of a visual environmental parameter and a non-visual environmental parameter. The visual environment parameter includes at least one of brightness, color temperature, hue, saturation, and contrast. The non-visual environment parameters comprise at least one of the environment temperature of the meeting place where the video conference terminal is located, the current time, the environment noise of the meeting place where the video conference terminal is located and the environment vibration of the meeting place where the video conference terminal is located.
In a specific implementation, the computer device 100 shown in fig. 2 may be a video conference terminal in fig. 1, as one embodiment.
A communication interface 104, configured to send the value of the environmental parameter of the conference place where the video conference terminal is located to a central control device.
the communication interface 104 is further configured to receive the adjusted video sent by the central control device.
The communication interface 104 is further configured to receive an environment parameter request message sent by the central control device, where the environment parameter request message is used to request a value of an environment parameter of a meeting place where the video conference terminal is located.
and the processor 101 is used for converting the acquired original data into values of the environmental parameters of the conference place where the video conference terminal is located, which can be identified by the central control equipment, by using image software. The raw data is sound data and light data acquired by physical equipment such as a sensor or a microphone. The image software may be photoshop-like software.
The processor 101 may include a control module for sending a control instruction to other meeting places, an encoding/decoding module for encoding and decoding audio or video, an output module for sending the received audio or video to an output device such as a display screen and a sound box, and the like, and these specific modules are not essential to the present invention and are not described herein.
As shown in FIG. 3 based on FIG. 2, the computer device 100 shown in FIG. 2 further includes a sensor 106 and a display 107.
The display 107 is used to display the received adjusted video to the conference participants.
the sensor 106 is used to obtain values of various environmental parameters including, but not limited to, brightness, color temperature, hue, saturation, contrast, temperature, current time, ambient noise, ambient vibration, etc.
It should be noted that, as shown in fig. 4, the sensor 106 may be an integrated sensor. And the integrated sensor is arranged in the video conference terminal and can collect all environment data.
As shown in fig. 5, the display 107 may be a television screen, a computer screen, a projection screen, a tablet computer screen, a mobile phone screen, smart glasses, or the like in a conference room. The sensor 106 may be a microphone and camera module. The camera module 1061 arranged in the video conference terminal shoots images of a conference room, obtains environmental data of a conference room where the video conference terminal is located, including brightness, color temperature, hue, saturation and contrast, and the microphone 1062 collects sound in the conference room, and the current time can be directly obtained by the central control device.
Optionally, the sensor 106 may be a combination of one or more of the following: the video conference terminal comprises a special conference control terminal, a camera, a television screen and the like.
it should be noted that the sensor 106 and the display 107 may be separate devices connected to the video conference terminal 20 to acquire environmental data and receive adjusted video for display to the participants.
As shown in fig. 6, the sensor 106 may be a personal terminal of a conference participant, such as a mobile phone and a wearable device, and the personal terminal generally has various types of sensors, such as a mobile phone camera, a microphone, a gyroscope, a temperature sensor, and the like, which are commonly used at present, and connects the personal terminal with the video conference terminal 20 to obtain sensor data within an authorized range, such as a conference room image collected by the mobile phone camera.
In this scenario, a pairing module 1063 and a control module 1064 are required in the sensor 106 to establish a connection with the participant's personal terminal and acquire data. The pairing module 1063 establishes connection with the personal terminals of the participants through technologies such as ultrasonic pairing and robot pairing; after the connection is established, on the premise of obtaining authorization, the control module 1064 sends a signal to the personal terminal of the participant to obtain data obtained through the participant personal terminal sensor 1065 (such as a camera, a microphone, a temperature sensor, an acceleration sensor, etc.), where some data need to be obtained by a user operation, for example, it may be necessary to send a prompt message to the participant personal terminal, and ask the user to take a picture in the meeting place environment to obtain information on the environmental color.
The present invention takes a video conference terminal and another video conference terminal as an example to describe a video processing method, and assuming that a video of the video conference terminal needs to be transmitted to another video conference terminal, embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 2
An embodiment of the present invention provides a video processing method, as shown in fig. 7, including:
Step 301, the video conference terminal sends a video to the central control device.
Step 302, the central control device receives a video sent by the video conference terminal.
Step 303, another video conference terminal obtains the value of the environmental parameter of the conference place where the another video conference terminal is located.
The central control device receives the video sent by the video conference terminal, and needs to send the video to another video conference terminal for a user of a conference place where the other video conference terminal is located to watch. The central control device may send an environment parameter request message to another video conference terminal, where the environment parameter request message is used to request a value of an environment parameter of a conference place where the video conference terminal is located.
the other video conference terminal may be provided with a sensing module, and the value of the environmental parameter of the conference place where the other video conference terminal is located is obtained through the sensing module, and the specific obtaining manner may refer to the contents described in the above apparatus embodiment, and details are not described here. The environmental parameter includes at least one of a visual environmental parameter and a non-visual environmental parameter. The visual environment parameters comprise at least one of brightness, color temperature, hue, saturation and contrast, and are parameters of images of a meeting place where the video conference terminal is located. The non-visual environment parameters comprise at least one of the environment temperature of the meeting place where the video conference terminal is located, the current time, the environment noise of the meeting place where the video conference terminal is located and the environment vibration of the meeting place where the video conference terminal is located. The environmental parameter may be one or a combination of more than one.
Lightness (brightness) is a property of color, and refers to the brightness of a picture.
Color temperature (color (u) r temperature), generally the light seen by the human eye, is composed of a spectral superposition of 7 colors. Some of these rays are blue and some are red, and color temperature is a method specifically used to measure and calculate the color components of the rays.
Hue (hue) refers to the general tendency of picture color, and is a large color effect.
Saturation (saturation) refers to the purity of a color, also called chroma, such as scarlet is redder than rose red, which means that the saturation of scarlet is higher.
Contrast (contrast) refers to a measure of the different brightness levels between the brightest white and darkest black areas in an image, with a larger range representing a larger contrast and a smaller range representing a smaller contrast. Generally, the higher the contrast, the clearer and more striking the image and the more vivid and bright the color; and the contrast is low, so that the whole picture is gray.
The value of the environmental parameter may be a specific value of a certain environmental parameter or may be converted into specific levels according to a preset conversion relationship.
For example, the brightness is a value between 0 and 100, the color temperature is a value between 2000 and 50000, the hue is a value between-150 and +150, the saturation is a value between-100 and 100, and the contrast is a value between-100 and 100. It should be noted that there are different methods for measuring these parameters, for example, the hue can be defined as a value between 0 and 100, which is not limited in the present invention.
The ambient temperature of the conference room where the video conference terminal is located refers to the ambient air temperature of the conference room where the video conference terminal is located.
The ambient noise of the conference place where the video conference terminal is located refers to the ambient sound of the conference place where the video conference terminal is located.
the environmental vibration of the conference place where the video conference terminal is located refers to the vibration condition of the conference place where the video conference terminal is located, such as an earthquake area. The video may be adjusted to exclude interference with the values of the non-visual environmental parameters.
the environmental temperature, the current time, the environmental noise and the environmental vibration can be converted into at least more than 3 levels according to a preset conversion relation, and the levels are shown in table 1. The specific conversion relationship and the specific division of each parameter into several levels are not limited in the present invention.
TABLE 1 environmental parameter classes
| Ambient temperature | Heat generation | Heating device | Comfort of the wearer | cooling device | Cold |
| Current time of day | Night | Early morning/evening | am/pm | Noon time | |
| ambient noise | Quiet/normal | quarry | Very loud | ||
| environmental vibration | Stability of | Slight shock | Vibration |
and step 304, the other video conference terminal sends the value of the environmental parameter of the conference place where the other video conference terminal is located to the central control equipment.
specifically, before the other video conference terminal sends the value of the environmental parameter of the conference room where the other video conference terminal is located to the central control device, the data acquired by the sensor is raw data, for example, one or more images acquired by a camera (image sensor) and a segment of audio acquired by a microphone (sound sensor).
and 305, the central control device receives the value of the environmental parameter of the meeting place where the other video conference terminal is located, which is sent by the other video conference terminal.
and step 306, the central control equipment acquires the adjusted video according to the value of the environmental parameter and the video.
firstly, the central control equipment determines a reference value of a display effect parameter of another video conference terminal according to the value of the environmental parameter; and then, the central control equipment acquires the adjusted video according to the reference value of the display effect parameter of the other video conference terminal and the video.
Specifically, as shown in fig. 8, the parameter name of the visual environment parameter is the same as the parameter name of the display effect parameter of another video conference terminal, and the detailed steps of the central control device obtaining the adjusted video according to the reference value of the display effect parameter of another video conference terminal and the video are as follows:
Step 3061, the central control device takes the value of the visual environment parameter as an initial value of the display effect parameter of the other video conference terminal.
Step 3062, the central control device adjusts the initial value of the display effect parameter of the other video conference terminal according to the value of the non-visual environment parameter and the preset rule, so as to obtain the reference value of the display effect parameter of the other video conference terminal.
the display effect parameter of the other video conference terminal includes at least one of brightness, color temperature, hue, saturation, contrast, refresh frequency, and resolution. The display effect parameter may be derived from the environmental parameter in step 304.
The refresh rate is the rate at which the image is updated on the screen, i.e. the number of times an image on the screen appears per second. The higher the refresh frequency, the less flicker is perceived in the image on the screen and the higher the stability. The display may not meet the refresh rate requirements because of insufficient bandwidth.
The resolution (screen resolution) is the precision of the screen image and refers to how many pixels can be displayed on the display. Generally, the higher the resolution of an image, the more pixels are included, the sharper the image, and the larger the storage space occupied by the image.
When the number of the visual environment parameters is more than the number of the display effect parameters, one part of the visual environment parameters is used for giving the initial value of the display effect parameters, and the other part of the visual environment parameters is used for adjusting the initial value of the display effect parameters, so that the reference value of the display effect parameters is obtained.
the preset rule may be a rule as shown in table 2. Each environmental parameter corresponds to a value or variation of the display effect parameter. As shown in table 2, a comparison table of the effect parameters and the environmental parameters is displayed.
table 2 shows a comparison table of effect parameters and environmental parameters
As can be seen from table 2, the visual environment parameters, such as brightness, color temperature, hue, saturation, contrast, etc., each of the visual environment parameters may directly correspond to a value of the display effect parameter, the brightness, color temperature, hue, saturation, and contrast of the visual environment parameter, and the brightness, color temperature, hue, saturation, and contrast of the display effect parameter. The values of the visual environment parameters are A, B, C, D, E, and the initial values of the corresponding display effect parameters are a brightness, b color temperature, c hue, d saturation and e contrast. Wherein the calculation of a-E is based on a-E according to a predetermined rule, and the invention is not limited by the specific rule. For example, the luminance value corresponding to the luminance of the parameter in the visual environment parameter is 20, and the luminance value corresponding to the display effect parameter is 20.
The corresponding relationship between the visual environment parameter and the display effect parameter may be a harmonious relationship or a relationship for enhancing contrast. For example, taking brightness as an example, the relationship of harmonization refers to that the local terminal is dark, the viewed image needs to be dark, the brightness of the local terminal meeting place is 30, and the corresponding display effect parameter brightness is 30. The relationship of contrast enhancement means that the local terminal is dark, the viewed image needs to be bright, the brightness of the local terminal meeting place is 30, and the corresponding brightness of the display effect parameter may be 50. The present invention is not limited to specific correspondence and corresponding specific numerical values.
The non-visual environmental parameter may affect multiple environmental parameters simultaneously. In particular, different levels of ambient temperature may affect one or more of image brightness, color temperature, hue, saturation, contrast, refresh frequency and resolution; different current times may affect one or more of image brightness, color temperature, hue, saturation, contrast, refresh frequency, and resolution; different ambient noise levels may affect one or more of image brightness, color temperature, hue, saturation, contrast, refresh frequency and resolution; different levels of ambient shock can affect one or more of image brightness, color temperature, hue, saturation, contrast, refresh rate, and resolution. Each of the non-visual environment parameters corresponds to a variation, f1-u8, of a display effect parameter, where the variation may be a numerical variation or a percentage variation, such as + f1 for brightness and + f1 for brightness, or +10 for percentage variation, when the temperature is "hot" in the environment parameter of the local conference site. The amount of change may be positive or negative, e.g., f1 may be +10, or-10, or + 10% or-10%.
The final reference value of the display effect parameter is a result of summing the value and the variation according to each environmental parameter. Wherein the reference value of the display effect parameter which is the same as the visual environment parameter is the sum of the value of the visual environment parameter and the values of all the non-visual environment parameters; the reference value for the refresh frequency and the reference value for the resolution are the sum of the values of all non-visual environment parameters. As shown in table 2, which is a comparison table of the effect parameter and the environment parameter, the brightness of the local conference room is adjusted to be calculated by summing the values of each environment parameter, where Σ (a-u1) is a + f1+ g1+.... + u1, and the other parameters are analogized in turn.
it should be noted that, if the environment parameter only includes the visual environment parameter, the central control device may use the value of the visual environment parameter as a reference value of the display effect parameter of another video conference terminal, and perform step 3063.
Step 3063, the central control device judges whether the initial difference value is within a preset range.
The initial difference is a difference between the reference value of the display effect parameter of the other video conference terminal and the value of the display effect parameter of the video.
If the initial difference is not within the preset range, step 3064 is performed.
If the initial difference is within the preset range, step 3065 is performed.
Step 3064, the central control device adjusts the video according to the reference value of the display effect parameter of the other video conference terminal, so that the adjusted video is obtained.
and the difference value between the value of the display effect parameter of the adjusted video and the reference value of the display effect parameter of the other video conference terminal is within the preset range.
Specifically, the central control device first obtains the value of the display effect parameter of the video.
The display effect parameter includes at least one of brightness, color temperature, hue, saturation, contrast, refresh frequency and resolution.
It should be noted that it is a relatively mature technology to analyze a section of video to obtain the value of the display effect parameter, when an image file is opened, mainstream image processing software such as photoshop can directly obtain the value of the display effect parameter such as brightness and chroma, and the value of the display effect parameter of the video can also be obtained by the same method, which is not described herein again.
The central control equipment compares the display effect parameter of the video with the display effect parameter of the other video conference terminal, the display effect parameter of the other video conference terminal is the same as the display effect parameter of the video, and the difference between the two is judged. When the difference is within a certain range, no difference can be considered. For example, assuming that the brightness parameter is taken as an example, the range of the brightness value is 0 to 255, the preset range is 0 to 10, and the brightness value in the local conference room environment parameter is 50, the brightness value in the video display effect parameter is 45, and the difference between the two is 5 and less than 10 according to the display effect parameter calculated according to the local conference room environment parameter, then the brightness in the video display effect parameter is considered to be not required to be changed. And if the brightness value in the video display effect parameter is 35 and the difference between the brightness value and the video display effect parameter is 15 and is greater than 10, the brightness value in the video display effect parameter is considered to be required to be adjusted to 50, so that the brightness value is the same as the brightness value in the local meeting place environment parameter.
The following data omits units, and the present invention is substantially independent of what kind of units, and those skilled in the art can easily understand that the units of common parameters such as the unit of sound is decibel, etc.
For example, it is assumed that the values of the environmental parameters of the conference place where the another video conference terminal is located, which are acquired by the central control device, include:
Brightness: 30, color temperature: 4500, color tone: -10, saturation: -20, contrast: -20, time: evening;
the step that the central control equipment determines the parameter value of the display effect parameter of the other video conference terminal according to the comparison table of the display effect parameter and the environmental parameter comprises the following steps:
brightness: 30, color temperature: 4500, color tone: -10, saturation: -20, contrast: -20;
The method comprises the following steps that a central control device obtains a video sent by a video conference terminal, and analyzing the value of a video display effect parameter comprises the following steps:
Brightness: 50, color temperature: 5000, color tone: 0, saturation: 0, contrast ratio: 0;
It is assumed that the difference range of the display effect parameter is predefined as: brightness: 10, color temperature: 1000, color tone: 10, saturation: 10, contrast ratio: 10.
wherein the value of the display effect parameter of the video is different from the reference value of the display effect parameter of another video conference terminal as follows,
The color temperature difference is 500, namely the color temperature 4500 of the display effect parameter is subtracted from the color temperature 5000 of the video within the difference range, so that the color temperature does not need to be adjusted and is kept at 5000;
The hue difference is 10, namely the hue 0 of the video minus the hue-10 of the display effect parameter is within the predefined difference range, so that the hue also does not need to be adjusted and is kept as 0;
The brightness difference is 20, the saturation difference is 20, and the contrast difference is 20, which all exceed the predefined difference range, so all need to be adjusted to be 30 brightness, saturation: -20, contrast: -20.
Therefore, the central control device adjusts the video according to the reference value of the display effect parameter of the other video conference terminal, and the adjusted value of the display effect parameter of the video comprises: brightness: 30, color temperature: 5000, color tone: 0, saturation: -20, contrast: -20.
it should be noted that after step 3062, step 3064 or step 3065 may be performed directly, i.e., the video may be adjusted according to the display effect parameter of another video conference terminal.
the other video conference terminal and the video conference terminal may be the same video conference terminal. That is, the central control device may adjust the video of the video conference terminal according to the reference value of the display effect parameter of the video conference terminal, and then send the adjusted video to the video conference terminal.
for example, it is assumed that the values of the environmental parameters of the conference place where the another video conference terminal is located, which are acquired by the central control device, include:
Brightness: 30, color temperature: 4500, color tone: -10, saturation: -20, contrast: -20, time: evening;
The step that the central control equipment determines the reference value of the display effect parameter of the other video conference terminal according to the comparison table of the display effect parameter and the environmental parameter comprises the following steps:
brightness: 80, color temperature: 6500, color tone: +30, saturation: +20, contrast ratio: + 20;
The method comprises the following steps that a central control device obtains a video sent by a video conference terminal, and analyzing the value of a video display effect parameter comprises the following steps:
Brightness: 50, color temperature: 5000, color tone: 0, saturation: 0, contrast ratio: 0;
Therefore, the central control device adjusts the video according to the reference value of the display effect parameter, and the value of the display effect parameter of the adjusted video comprises the following brightness: 80, color temperature: 6500, color tone: +30, saturation: +20, contrast ratio: +20.
step 3065, the central control device does not adjust the video.
and 307, the central control device sends the adjusted video to another video conference terminal.
and step 308, the other video conference terminal receives the adjusted video sent by the central control equipment.
And the other video conference terminal receives the adjusted video sent by the central control equipment and displays the adjusted video.
in this way, before sending a video to another video conference terminal, the central control device determines a reference value of a display effect parameter of another video conference terminal according to an environmental parameter of a meeting place where the another video conference terminal is located, and then adjusts the video according to the reference value of the display effect parameter of the another video conference terminal, so that the value of the display effect parameter of the adjusted video is the reference value of the display effect parameter of the another video conference terminal. Therefore, the video suitable for the meeting place environment of the other video conference terminal is presented according to the real environment of the meeting place where the other video conference terminal is located, and the impression experience of the user is effectively improved.
The method steps shown in fig. 7 and 8 can be implemented by the computer device shown in fig. 2. For example, steps 301 and 302, as well as other method steps for transmitting and receiving, may be implemented by the communication interface 104. Step 303 may be implemented by sensor 106. The method steps described in step 306 for adjusting the video according to the value of the environmental parameter to obtain the adjusted video may be implemented by the processor 101.
Example 3
An embodiment of the present invention provides a central control apparatus 40, as shown in fig. 9, including:
the receiving unit 401 is further configured to receive a video sent by the video conference terminal;
The receiving unit 401 is configured to receive a value of an environmental parameter of a meeting place where another video conference terminal is located, where the value is sent by another video conference terminal;
a processing unit 402, configured to obtain an adjusted video according to the value of the environmental parameter received by the receiving unit and the video;
A sending unit 403, further configured to send the adjusted video acquired by the processing unit to the other video conference terminal.
In this way, the central control device obtains the adjusted video according to the value of the environmental parameter and the video before sending the video to another video conference terminal. Therefore, the video suitable for the meeting place environment of the other video conference terminal is presented according to the real environment of the meeting place where the other video conference terminal is located, and the impression experience of the user is effectively improved.
in the present embodiment, the central control apparatus 40 is presented in the form of a functional unit. As used herein, a unit may refer to an application-specific integrated circuit (ASIC), an electronic circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that provide the described functionality. In a simple embodiment, it will be appreciated by those skilled in the art that the central control apparatus 40 may take the form shown in FIG. 9. The receiving unit 401, the processing unit 402 and the sending unit 403 may be implemented by the computer device of fig. 2, specifically, the receiving unit 401 and the sending unit 403 may be implemented by the communication interface 104, and the processing unit 402 may be implemented by the processor 101.
example 4
An embodiment of the present invention provides a video conference terminal 50, as shown in fig. 10, including:
A sensing unit 501, configured to obtain a value of an environmental parameter of a meeting place where the video conference terminal is located;
A sending unit 502, configured to send the value of the environmental parameter obtained by the sensing unit to a central control device;
a receiving unit 503, further configured to receive an adjusted video from the central control device, where the adjusted video is obtained according to the value of the environmental parameter and a video of another video conference terminal;
A display unit 504, configured to display the adjusted video received by the receiving unit.
Therefore, after the video conference terminal sends the value of the environmental parameter of the conference place where the video conference terminal is located to the central control device, the central control device obtains the adjusted video according to the value of the environmental parameter and the video, and the video conference terminal receives the adjusted video from the central control device and displays the adjusted video. Therefore, the video suitable for the meeting place environment of the other video conference terminal is presented according to the real environment of the meeting place where the other video conference terminal is located, and the impression experience of the user is effectively improved.
In the present embodiment, the video conference terminal 50 is presented in the form of a functional unit. As used herein, a unit may refer to an application-specific integrated circuit (ASIC), an electronic circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that provide the described functionality. In a simple embodiment, it will be appreciated by those skilled in the art that the central control apparatus 40 may take the form shown in FIG. 10. The sensing unit 501, the receiving unit 503, the sending unit 502 and the display unit 504 may be implemented by the computer device of fig. 3, specifically, the receiving unit 503 and the sending unit 502 may be implemented by the communication interface 104, the sensing unit 501 may be implemented by the sensor 106, and the display unit 504 may be implemented by the display 107.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the above-described apparatuses and units, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again. The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (19)
1. A video processing method, comprising:
the central control equipment receives a video sent by the video conference terminal;
the central control equipment receives the value of the environmental parameter of the meeting place where the other video conference terminal is located, which is sent by the other video conference terminal; the environment parameters comprise at least one of the environment temperature of the meeting place where the video conference terminal is located, the current time, the environment noise of the meeting place where the video conference terminal is located and the environment vibration of the meeting place where the video conference terminal is located;
The central control equipment acquires the adjusted video according to the value of the environmental parameter and the video;
The central control device sends the adjusted video to the other video conference terminal;
The central control device obtaining the adjusted video according to the value of the environmental parameter and the video comprises:
the central control equipment determines a reference value of a display effect parameter of the other video conference terminal according to the value of the environment parameter, wherein the display effect parameter of the other video conference terminal comprises at least one of brightness, color temperature, hue, saturation, contrast, refreshing frequency and resolution;
and the central control equipment acquires the adjusted video according to the reference value of the display effect parameter of the other video conference terminal and the video.
2. the method according to claim 1, wherein the obtaining, by the central control device, the adjusted video according to the reference value of the display effect parameter of the other video conference terminal and the video comprises:
the central control device judges whether an initial difference value is within a preset range, wherein the initial difference value is a difference value between a reference value of a display effect parameter of the other video conference terminal and a value of the display effect parameter of the video;
If the initial difference value is not within the preset range, the central control device adjusts the video according to the reference value of the display effect parameter of the other video conference terminal, so as to obtain the adjusted video, wherein the difference value between the value of the display effect parameter of the adjusted video and the reference value of the display effect parameter of the other video conference terminal is within the preset range.
3. The method of claim 1 or 2, wherein the environmental parameters comprise at least one of visual environmental parameters and non-visual environmental parameters.
4. the method of claim 3, wherein the visual environment parameter has the same parameter name as the display effect parameter of the other video conference terminal, and the determining, by the central control apparatus, the reference value of the display effect parameter of the other video conference terminal according to the value of the environment parameter comprises:
The central control equipment takes the value of the visual environment parameter as an initial value of the display effect parameter of the other video conference terminal;
And the central control equipment adjusts the initial value of the display effect parameter of the other video conference terminal according to the value of the non-visual environment parameter and a preset rule, so as to obtain a reference value of the display effect parameter of the other video conference terminal.
5. a video processing method, comprising:
the method comprises the steps that a video conference terminal obtains the value of an environment parameter of a meeting place where the video conference terminal is located, wherein the environment parameter comprises at least one of the environment temperature of the meeting place where the video conference terminal is located, the current time, the environment noise of the meeting place where the video conference terminal is located and the environment vibration of the meeting place where the video conference terminal is located;
the video conference terminal sends the value of the environmental parameter to a central control device;
The video conference terminal receives an adjusted video from the central control device, wherein the adjusted video is obtained by the central control device according to the value of the environmental parameter and the video of another video conference terminal;
the central control device obtaining the video according to the value of the environmental parameter and the video of the other video conference terminal includes:
The central control equipment determines a reference value of a display effect parameter of the other video conference terminal according to the value of the environment parameter, wherein the display effect parameter of the other video conference terminal comprises at least one of brightness, color temperature, hue, saturation, contrast, refreshing frequency and resolution; the central control equipment acquires the adjusted video according to the reference value of the display effect parameter of the other video conference terminal and the video;
and the video conference terminal displays the adjusted video.
6. The method according to claim 5, wherein before the video conference terminal transmits the value of the environmental parameter of the conference site where the video conference terminal is located to a central control device, the method further comprises:
and the video conference terminal receives an environment parameter request message from the central control equipment, wherein the environment parameter request message is used for requesting the value of the environment parameter of the conference place where the video conference terminal is located.
7. The method of claim 5 or 6, wherein the environmental parameters comprise at least one of visual environmental parameters and non-visual environmental parameters.
8. The method of claim 7, wherein the visual environment parameter is a parameter of an image of a meeting place where the video conference terminal is located, and the visual environment parameter comprises at least one of brightness, color temperature, hue, saturation and contrast.
9. the method according to claim 7 or 8, wherein the non-visual environment parameters comprise at least one of an ambient temperature of a conference site where the video conference terminal is located, a current time, an ambient noise of the conference site where the video conference terminal is located, and an ambient vibration of the conference site where the video conference terminal is located.
10. A central control apparatus, comprising:
the receiving unit is also used for receiving the video sent by the video conference terminal;
The receiving unit is used for receiving a value of an environmental parameter of a meeting place where another video conference terminal is located, wherein the value of the environmental parameter is sent by another video conference terminal, and the environmental parameter comprises at least one of an environmental temperature of the meeting place where the video conference terminal is located, a current time, environmental noise of the meeting place where the video conference terminal is located and environmental vibration of the meeting place where the video conference terminal is located;
the processing unit is used for acquiring the adjusted video according to the value of the environmental parameter received by the receiving unit and the video;
a sending unit, configured to send the adjusted video acquired by the processing unit to the other video conference terminal;
The processing unit is specifically configured to:
Determining a reference value of a display effect parameter of the other video conference terminal according to the value of the environment parameter, wherein the display effect parameter of the other video conference terminal comprises at least one of brightness, color temperature, hue, saturation, contrast, refresh frequency and resolution;
and acquiring the adjusted video according to the reference value of the display effect parameter of the other video conference terminal and the video.
11. The central control apparatus according to claim 10, wherein the processing unit is specifically configured to:
Judging whether an initial difference value is within a preset range, wherein the initial difference value is a difference value between a reference value of a display effect parameter of the other video conference terminal and a value of the display effect parameter of the video;
And if the initial difference value is not in the preset range, adjusting the video according to the reference value of the display effect parameter of the other video conference terminal so as to obtain the adjusted video, wherein the difference value between the value of the display effect parameter of the adjusted video and the reference value of the display effect parameter of the other video conference terminal is in the preset range.
12. the central control apparatus according to claim 10 or 11, wherein the environmental parameters comprise at least one of visual environmental parameters and non-visual environmental parameters.
13. The central control apparatus according to claim 12, wherein the visual environment parameter is the same as a parameter name of the display effect parameter of the other video conference terminal, and the processing unit is specifically configured to:
taking the value of the visual environment parameter as an initial value of a display effect parameter of the other video conference terminal;
and adjusting the initial value of the display effect parameter of the other video conference terminal according to a preset rule according to the value of the non-visual environment parameter, so as to obtain a reference value of the display effect parameter of the other video conference terminal.
14. A video conference terminal, comprising:
the sensing unit is used for acquiring the value of the environmental parameter of the meeting place where the video conference terminal is located, wherein the environmental parameter comprises at least one of the environmental temperature of the meeting place where the video conference terminal is located, the current time, the environmental noise of the meeting place where the video conference terminal is located and the environmental vibration of the meeting place where the video conference terminal is located;
the sending unit is used for sending the value of the environmental parameter obtained by the sensing unit to central control equipment;
A receiving unit, configured to receive an adjusted video from the central control device, where the adjusted video is a video obtained by the central control device according to the value of the environmental parameter and a video of another video conference terminal; the central control device obtaining the video according to the value of the environmental parameter and the video of the other video conference terminal includes:
The central control equipment determines a reference value of a display effect parameter of the other video conference terminal according to the value of the environment parameter, wherein the display effect parameter of the other video conference terminal comprises at least one of brightness, color temperature, hue, saturation, contrast, refreshing frequency and resolution; the central control equipment acquires the adjusted video according to the reference value of the display effect parameter of the other video conference terminal and the video;
And the display unit is used for displaying the adjusted video received by the receiving unit.
15. The video conference terminal of claim 14,
The receiving unit is further configured to receive an environment parameter request message from the central control device, where the environment parameter request message is used to request a value of an environment parameter of a conference place where the video conference terminal is located.
16. The video conferencing terminal of claim 14 or 15, wherein the environmental parameters comprise at least one of visual environmental parameters and non-visual environmental parameters.
17. The video conference terminal according to claim 16, wherein the visual environment parameter is a parameter of an image of a meeting place where the video conference terminal is located, and the visual environment parameter includes at least one of brightness, color temperature, hue, saturation and contrast.
18. The video conference terminal according to claim 16 or 17, wherein the non-visual environment parameters comprise at least one of an ambient temperature of a conference site where the video conference terminal is located, a current time, an ambient noise of the conference site where the video conference terminal is located, and an ambient vibration of the conference site where the video conference terminal is located.
19. the video conferencing terminal of any of claims 14-18, wherein the sensing unit comprises:
a personal terminal device;
Alternatively, an integrated sensor;
Alternatively, one or more of the following sensors: light sensors, temperature sensors, sound sensors and motion sensors.
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| CN109218849B (en) * | 2018-10-30 | 2021-07-02 | 广州虎牙科技有限公司 | Live data processing method, device, equipment and storage medium |
| CN109525802A (en) * | 2018-11-27 | 2019-03-26 | 平安科技（深圳）有限公司 | A kind of video stream transmission method and device |
| CN112584230A (en) * | 2019-09-27 | 2021-03-30 | 阿里巴巴集团控股有限公司 | Multimedia processing method and video processing method, device and readable storage medium |
| CN113552123A (en) * | 2020-04-17 | 2021-10-26 | 华为技术有限公司 | Visual inspection method and visual inspection device |
| CN112272281B (en) * | 2020-10-09 | 2024-05-31 | 上海晨驭信息科技有限公司 | Regional distributed video conference system |
| CN113422995B (en) * | 2021-02-04 | 2023-06-23 | 郑州大学 | Video processing method based on AI model and portable electronic device |
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