CN110460901A - A kind of video method of sending and receiving and its equipment - Google Patents
A kind of video method of sending and receiving and its equipment Download PDFInfo
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- CN110460901A CN110460901A CN201910733640.6A CN201910733640A CN110460901A CN 110460901 A CN110460901 A CN 110460901A CN 201910733640 A CN201910733640 A CN 201910733640A CN 110460901 A CN110460901 A CN 110460901A
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- 239000011159 matrix material Substances 0.000 claims abstract description 320
- 230000007704 transition Effects 0.000 claims abstract description 278
- 230000005540 biological transmission Effects 0.000 claims abstract description 87
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000004590 computer program Methods 0.000 claims description 21
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
- Color Image Communication Systems (AREA)
Abstract
This application involves technical field of video processing, more particularly to a kind of video method of sending and receiving and its equipment.Transmitting terminal determines transition matrix according to the color space transitional information that current video transmission needs；Transmitting terminal collected source color space data will be converted to target color space data from current video according to transition matrix；Transmitting terminal sends target color space data and the information for determining transition matrix to receiving end.Receiving end determines transition matrix according to the information of transition matrix is determined, so that receiving end and transmitting terminal carry out color conversion using the same matrix, to improve the clarity of the color displays of receiving end.
Description
Technical field
This application involves technical field of video processing, more particularly to a kind of video method of sending and receiving and its equipment.
Background technique
With the development of network technology and the improvement of hardware device, Network Video Transport Technology is quickly grown.Transmission of video
System generally comprises acquisition encoding device and decoding display equipment two large divisions.Acquisition encoding device is used to acquire video at the scene
Analog signal is simultaneously converted into digital signal by signal, and decoding display equipment will be transferred to after digital signal encoding；Decoding display is set
It is standby to decode and show video.Decoding display equipment is decoder, computer etc., and acquisition encoding device is encoder, network shooting
Machine (IP CAMERA IPC) etc..Due to transmission and the demand of target side, color is carried out commonly using color space switch technology
Conversion and reduction, in encoding device side, by the data conversion of source color space at the data of target color space.And it is decoding
Equipment side is shown, by the data convert of target color space at source color space data.
There are many color spaces, such as rgb color space, wherein R, G, B respectively represent Red Green Blue；
Lab color space, L are that psychological lightness, a and b are psychometry degree；
HSV color space, H are form and aspect, and S is saturation degree, and V is brightness；
YUV color space, Y indicate brightness, and U indicates that coloration, V indicate concentration；
YCbCr color space, is a mutation of YUV, and Y indicates brightness, that is, grayscale value；Cb and Cr is then blue
With red concentration excursion amount composition.
It in existing color space switch technology, is realized using transition matrix by the data conversion of source color space
For the data of target color space；For example in acquisition encoding device side, RGB data is converted to using following transition matrix
YCbCr data.
Y=0.257*R+0.504*G+0.098*B+16
Cb=-0.148*R-0.291*G+0.439*B+128
Cr=0.439*R-0.368*G-0.071*B+128
The data of rgb color space are converted to the data of YCbCr color space, it can be in past release carrier chrominance signal
Correlation, improve the compressible ability of chrominance signal, convenient for transmission.Accordingly, correspondence is used in decoding display equipment side
Transition matrix inverse matrix by YCbCr data convert at RGB data.
But in the prior art, the transition matrix converted not is unique, but there are many different conversion squares
Battle array.The transition matrix that decoding display equipment uses is usually default setting, if acquisition encoding device is carried out using matrix B
Conversion, but decode display equipment and the inverse matrix of the matrix A of default setting is still used to be restored, it can not will fully go back
Former RGB data causes final color displays unintelligible.
Summary of the invention
The embodiment of the present application provides a kind of video method of sending and receiving and its equipment, connects in the prior art to solve
The unsharp problem of color displays caused by the transition matrix of transition matrix and sending device in receiving unit is inconsistent.
In a first aspect, the embodiment of the present application provides a kind of video transmission method, comprising:
Transmitting terminal determines transition matrix according to the color space transitional information that current video transmission needs；
The transmitting terminal collected source color space data will turn according to the transition matrix from the current video
It is changed to target color space data；
The transmitting terminal sends the target color space data and the letter for determining the transition matrix to receiving end
Breath.
The above method, transmitting terminal send the information for determining transition matrix to receiving end, and receiving end is converted according to determining
The information of matrix determines transition matrix, so that receiving end and transmitting terminal carry out color conversion using the same matrix, thus
Improve the clarity of the color displays of receiving end.
In one possible implementation, the transmitting terminal converts letter according to the color space that current video transmission needs
It ceases and determines transition matrix, comprising:
The transmitting terminal determines that the current video passes according to the corresponding relationship of color space transitional information and transition matrix
The corresponding transition matrix of color space transitional information of defeated needs；
Wherein, the color space transitional information includes some or all of in following message:
The clarity type of the current video, the source color space data and the target color space data it is bright
Spend value range type.
The above method defines the specific content of color space transitional information, can be according to color space transitional information
Specific content determine color space transitional information and further determine corresponding transition matrix.
In one possible implementation, the transmitting terminal converts letter according to the color space that current video transmission needs
It ceases after determining transition matrix, sends the target color space data to receiving end and the letter for determining the transition matrix
Before breath, further includes:
The transmitting terminal is using the color space transitional information as the information for being used to determine the transition matrix；Or it is described
Transmitting terminal determines the color space transitional information that the current video transmission needs according to the corresponding relationship of transition matrix and mark
The mark of corresponding transition matrix, and by determining mark as the information for being used to determine the transition matrix.
The above method determines transition matrix using mark or color space transitional information, improves and determines and search
The Discussing Convenience of transition matrix.
In one possible implementation, the transmitting terminal converts letter according to the color space that current video transmission needs
It ceases before determining transition matrix, further includes:
The transmitting terminal determines the color of the color space transitional information that current video transmission needs and the last transmission
Space transitional information is compared and is changed.
The above method, in the color for determining the color space transitional information that current video transmission needs and the last transmission
Space transitional information then determines conversion square according to the color space transitional information that current video transmission needs compared to changing
Battle array, further collected source color space data will be converted to aim colour from the current video according to the transition matrix
Color space data；And the target color space data are sent and the information for determining the transition matrix to receiving end, with
Make receiving end according to the information of transition matrix is determined to determine transition matrix, so that receiving end and transmitting terminal use the same matrix
Color conversion is carried out, to improve the clarity of the color displays of receiving end.
In one possible implementation, this method further include:
If the transmitting terminal determines the color of the color space transitional information that current video transmission needs and the last transmission
Color space transitional information is not compared to changing, then the determining conversion square of the color space transitional information transmitted according to the last time
Battle array collected source color space data will be converted to target color space data from the current video, and send out to receiving end
Send the target color space data.
The above method, in the color for determining the color space transitional information that current video needs to transmit and the last transmission
Space transitional information is not compared to changing, then only transmission objectives color space data, reduces the transmission of data, economize on resources.
Second aspect, the embodiment of the present application also provides a kind of video receiving methods, comprising:
Receiving end receives the target color space data that transmitting terminal is sent and the information for determining transition matrix；Wherein,
The target color space data be transmitting terminal according to transition matrix will from current video collected source color space data
It is converted to；
The receiving end determines transition matrix according to the information for determining transition matrix；
The inverse matrix of the receiving end transition matrix is by the target color space data convert at source color sky
Between data.
The above method, receiving end is according to for determining that the information of transition matrix determines transition matrix；It is inverse with transition matrix
Matrix by target color space data convert at source color space data, so as to use correct transition matrix by aim colour
Color space data are reduced into source color space data completely, and source color space number can not be restored completely in the prior art by solving
The unsharp problem of color displays caused by.
In one possible implementation, the information for determining transition matrix is the mark of transition matrix；
The receiving end determines transition matrix according to the information for determining transition matrix, comprising:
The receiving end determines the mark of the transition matrix according to the corresponding relationship of the mark and the transition matrix
Corresponding transition matrix.
The above method, with mark for marking transition matrix, transmitting terminal only needs the mark of transition matrix being sent to reception
End, receiving end can find out corresponding transition matrix according to mark, more convenient in practical applications.
In one possible implementation, the information for determining transition matrix is color space transitional information；
The receiving end determines transition matrix according to the information for determining transition matrix, comprising:
The receiving end determines color space conversion letter according to the corresponding relationship of color space transitional information and transition matrix
Cease corresponding transition matrix；
Wherein, the color space transitional information includes some or all of in following message:
The clarity type of the current video, the source color space data and the target color space data it is bright
Spend value range type.
The above method, after defining that the concrete composition content of color space transitional information, color space transitional information determine,
Transition matrix can be determined according to corresponding relationship.
In one possible implementation, this method further include:
The receiving end receives the target color space data that transmitting terminal is sent；Wherein, the target color space data
It is that transmitting terminal is converted in the color space for determining the color space transitional information that current video transmission needs and the last transmission
The transition matrix that information is determined compared to after not changing, according to the color space transitional information of the last time transmission will be from current
Collected source color space data are converted in video；
The transition matrix that the receiving end is determined according to the information for determining transition matrix that the last time receives
Inverse matrix is by the target color space data convert at source color space data.
The above method, if receiving end only receives target color space data, it is determined that the color space that transmitting terminal is sent
The color space information that information is sent with the transmitting terminal that the last time receives does not change, then is received using the last time
Transmitting terminal sends the inverse matrix for determining transition matrix for target color space data convert into source color space data, thus
It is able to use correct transition matrix and target color space data is reduced into source color space data completely, solve existing skill
The unsharp problem of color displays caused by source color space data can not be restored in art completely.
The third aspect, the embodiment of the present application also provides a kind of video sending devices, comprising: memory and processor, institute
The computer program for being stored with and being run on memory on the processor is stated, when the computer program is by the processor
When execution, so that the processor executes following steps:
Transition matrix is determined according to the color space transitional information that current video transmission needs；
According to the transition matrix collected source color space data aim colour will be converted to from the current video
Color space data；
The target color space data are sent to receiving end and the information for determining the transition matrix.
In one possible implementation, the processor is also used to, according to color space transitional information and conversion square
The corresponding relationship of battle array determines the corresponding transition matrix of color space transitional information that the current video transmission needs；
Wherein, the color space transitional information includes some or all of in following message:
The clarity type of the current video, the source color space data and the target color space data it is bright
Spend value range type.
In one possible implementation, the processor is also used to:
Using the color space transitional information as the information for being used to determine the transition matrix；Or according to transition matrix and
The corresponding relationship of mark determines the mark for the corresponding transition matrix of color space transitional information that the current video transmission needs,
And by determining mark as the information for being used to determine the transition matrix.
In one possible implementation, the processor is also used to:
Determine that the color space conversion of the color space transitional information that current video transmission needs and the last transmission is believed
Manner of breathing ratio changes.
In one possible implementation, the processor is also used to:
If it is determined that the color space of color space transitional information and the last transmission that current video transmission needs is converted
The transition matrix that information is determined compared to not changing, then according to the color space transitional information of the last time transmission will be from described
Collected source color space data are converted to target color space data in current video, and send the target to receiving end
Color space data.
Fourth aspect, the embodiment of the present application also provides a kind of video reception apparatus, comprising: memory and processor, institute
The computer program for being stored with and being run on memory on the processor is stated, when the computer program is by the processor
When execution, so that the processor executes following steps:
Receive the target color space data that transmitting terminal is sent and the information for determining transition matrix；Wherein, the mesh
Marking color space data is that transmitting terminal collected source color space data will be turned according to transition matrix from current video
It gets in return；
Transition matrix is determined according to the information for determining transition matrix；
With the inverse matrix of the transition matrix by the target color space data convert at source color space data.
In one possible implementation, the processor is also used to, according to the mark and the transition matrix
Corresponding relationship determines the corresponding transition matrix of the mark of the transition matrix.
In one possible implementation, the processor is also used to, according to color space transitional information and conversion square
The corresponding relationship of battle array, determines the corresponding transition matrix of color space transitional information；
Wherein, the color space transitional information includes some or all of in following message:
The clarity type of the current video, the source color space data and the target color space data it is bright
Spend value range type.
In one possible implementation, the processor is also used to:
Receive the target color space data that transmitting terminal is sent；Wherein, the target color space data are that transmitting terminal exists
Determine current video transmission need color space transitional information with the last time transmission color space transitional information compared with not
After changing, it will be acquired from current video according to the transition matrix that the color space transitional information of the last time transmission determines
To source color space data be converted to；
The inverse matrix of the transition matrix determined according to the information for determining transition matrix that the last time receives is by institute
Target color space data convert is stated into source color space data.
5th aspect, the embodiment of the present application also provides another video sending devices, comprising:
Determining module, the color space transitional information for being needed according to current video transmission determine transition matrix；
Color space conversion module, for according to the transition matrix will from the current video collected source color
Conversion of Spatial Data is target color space data；
Sending module, for sending the target color space data to receiving end and for determining the transition matrix
Information.
6th aspect, the embodiment of the present application also provides another video reception apparatus, comprising:
Receiving module, the letter for receiving the target color space data of transmitting terminal transmission and for determining transition matrix
Breath；Wherein, the target color space data be transmitting terminal according to transition matrix will from current video collected source color
What spatial data was converted to；
Determining module, for determining transition matrix according to the information for determining transition matrix；
Color space conversion module, for the inverse matrix of the transition matrix by the target color space data convert
At source color space data.7th aspect, the embodiment of the present application also provides a kind of computer readable storage mediums, store thereon
There is computer program, the computer program realizes the step of any method in above-mentioned first aspect when being executed by processor
Suddenly.
Second aspect technical effect brought by any one implementation into the 7th aspect can be found in first aspect
Technical effect brought by corresponding implementation, details are not described herein again.
Detailed description of the invention
Fig. 1 a is the schematic diagram of a scenario that video sends and receives in the prior art；
Fig. 1 b is the schematic diagram of a scenario that the improved video of the application sends and receives；
Fig. 2 is a kind of video transmission method flow chart provided by the embodiments of the present application；
Fig. 3 is a kind of video receiving method flow chart provided by the embodiments of the present application；
Fig. 4 is a kind of holistic approach flow chart of video processing provided by the embodiments of the present application；
Fig. 5 is a kind of structural schematic diagram of video sending device provided by the embodiments of the present application；
Fig. 6 is a kind of structural schematic diagram of video reception apparatus provided by the embodiments of the present application；
Fig. 7 is the structural schematic diagram of another video sending device provided by the embodiments of the present application；
Fig. 8 is the structural schematic diagram of another video reception apparatus provided by the embodiments of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
Video transmission system generally comprises acquisition encoding device and passes and decode display equipment, referring to video shown in attached drawing 1a
Send and receive schematic diagram of a scenario；Acquisition encoding device is acquired externally input vision signal to obtain RGB data, will
RGB data is converted into YCbCr data, and Ycbcr data encoding is processed into code stream and is sent to decoding display equipment.Accordingly, it solves
Code display equipment receives acquisition encoding device transmitted stream；By code stream decoding at YCbCr data；Also by YCbCr data conversion
Original is at RGB data；And it shows.In the prior art, when carrying out color rendition in decoding display equipment, due to being not aware that coding is set
The standby conversion carried out using which matrix, so the transition matrix that decoding display equipment and encoding device use has very much
May be inconsistent, so that the color displays that will lead to after conversion are unintelligible.
The application is made that improvement, sends and receives system schematic, In referring to improved video shown in attached drawing 1b
It is respectively provided with color space information synchronizing function in acquisition encoding device and decoding display equipment, it is same by color space information
Step, decoding display equipment can obtain the information of color space conversion in time, to use the same square with acquisition encoding device
Battle array carries out the conversion of color space, improves the clarity of color displays.
Based on this, present applicant proposes a kind of video transmission methods, referring to attached video transmission method process shown in Fig. 2
Figure, this method comprises:
Step S201, transmitting terminal determine transition matrix according to the color space transitional information that current video transmission needs；
Wherein, the information and target color space data for determining transition matrix can be sent simultaneously, can also be with timesharing
Send the information and target color space data for determining transition matrix.
For example, the information of determining transition matrix can first be sent, target color space data are then retransmited.
Transmitting terminal is transmitted when sending the information and target color space data for determining transition matrix in current video
After the color space transitional information needed is compared and changed with the color space transitional information of the last time transmission, transmission is used for
Determine the information and target color space data of transition matrix.
If the color space transitional information of color space transitional information and the last transmission that current video transmission needs
Compared to not changing, then target color space data are only sent.
Correspondingly, determining the target being currently received when receiving end is after receiving the information for determining transition matrix
Color space data is different from the transition matrix information that the target color space data that the last time receives use, further root
According to receiving for determining that the information of transition matrix determines inverse matrix, and with inverse matrix by current target color space data
It is reduced into source color space data；Or
When receiving end only receives target color space data, it is determined that the target color space data that are currently received with
The transition matrix that the target color space data that the last time receives use is identical, then continues to use what the last time received
Current goal color space data is reduced into source color space by the inverse matrix of the corresponding transition matrix of target color space data
Data.
When currently the color space data transmitted being needed to change, sends the target color space data and be used for
It determines the information of the transition matrix, reduces information transmission and economize on resources.
Wired or the wirelessly determining transition matrix of transmission information and target color space data can be passed through.
Step S202, the transmitting terminal according to the transition matrix will from the current video collected source color it is empty
Between data be converted to target color space data.
Wherein, source color space data are rgb color space data, and target color space data are YCbCr color space
Data.Or the color space data of other forms, the embodiment of the present application do not do specific limitation.
Below using source color space data as rgb color space data, target color space data are YCbCr color space
Data instance is illustrated.
Transmitting terminal is acquisition encoding device, and RGB data is known as source data；YCbCr data are known as target data.
Receiving end is decoding display equipment, and the YCbCr data received are known as source data, YCbCr data are converted
RGB data is obtained, RGB data is target data.
Step S203, the transmitting terminal is to the receiving end transmission target color space data and for determining the conversion
The information of matrix.
The above method, transmitting terminal send the information for determining transition matrix to receiving end, and receiving end is converted according to determining
The information of matrix determines transition matrix, so that receiving end and transmitting terminal carry out color conversion using the same matrix, thus
Improve the clarity of the color displays of receiving end.
In order to determine transition matrix, need to establish the corresponding relationship of color space transitional information and transition matrix, In
In a kind of possible implementation, the transmitting terminal determines conversion according to the color space transitional information that current video transmission needs
Matrix can be realized by the corresponding relationship by preset color space transitional information and transition matrix.
The transmitting terminal determines that the current video passes according to the corresponding relationship of color space transitional information and transition matrix
The corresponding transition matrix of color space transitional information of defeated needs.
It is emphasized that color space transitional information and the corresponding of transition matrix that transmitting terminal and receiving end are stored close
System is identical.After receiving end receives color space transitional information, according to identical corresponding relationship, correspondence can be just found
Transition matrix.
Wherein, the color space transitional information includes but is not limited to some or all of in following message:
The clarity type of the current video, the source color space data and the target color space data it is bright
Spend value range type.
Wherein, clarity type includes SD, high definition and ultra high-definition.
The brightness value range type of the source color space data and the target color space data specifically includes: complete
Range full range type and subrange limited range type.
Wherein, the grey-scale range 0-255 of gamut full range type, the ash of subrange Limited rang type
Order range 16-235.In order to which the corresponding relationship of color space transitional information and transition matrix is described in detail, referring to color shown in table 1
The correspondence diagram of color space transitional information and transition matrix.
Table 1
In transmitting terminal, when clarity is SD, the brightness value range type of source data is Full range, target data
Brightness value range type be Limited range when, converted using transition matrix 1；
When clarity is SD, the brightness value range type of source data is the brightness of Limited range, target data
When value range type is Full range, converted using transition matrix 2；
When clarity is SD, the brightness value range type of source data is the brightness of Limited range, target data
When value range type is Limited range, converted using transition matrix 3；
When clarity is SD, the brightness value range type of source data is that the brightness of Full range, target data take
When value wide-style is Full range, converted using transition matrix 4；
When clarity is high definition, the brightness value range type of source data is that the brightness of Full range, target data take
When value wide-style is Limited range, converted using transition matrix 5；
When clarity is high definition, the brightness value range type of source data is the brightness of Limited range, target data
When value range type is Full range, converted using transition matrix 6；
When clarity is high definition, the brightness value range type of source data is the brightness of Limited range, target data
When value range type is Limited range, converted using transition matrix 7；
When clarity is high definition, the brightness value range type of source data is that the brightness of Full range, target data take
When value wide-style is Full range, converted using transition matrix 8；
When clarity is ultra high-definition, the brightness value range type of source data is the brightness of Full range, target data
When value range type is Full range, converted using transition matrix 9；
When clarity is ultra high-definition, the brightness value range type of source data is Limited range, target data it is bright
When degree value range type is Full range, converted using transition matrix 10；
When clarity is ultra high-definition, the brightness value range type of source data is Limited range, target data it is bright
When degree value range type is Limited range, converted using transition matrix 11；
When clarity is ultra high-definition, the brightness value range type of source data is the brightness of Full range, target data
When value range type is Full range, converted using transition matrix 12.
Above-mentioned color space transitional information is sent receiving end by transmitting terminal, and receiving end turns according to above-mentioned color space
Information is changed to determine corresponding transition matrix, if, the color space transitional information that transmitting terminal is sent are as follows: clarity type is
Ultra high-definition type, the brightness value range type of source data are Full range, the brightness value range type of target data is
When Full range, after receiving end receives above- mentioned information, it can determine that corresponding transition matrix is square according to corresponding relationship
Battle array 12, is reduced into source data for target data using the inverse matrix of transition matrix 12.
In order to allow receiving end to determine transition matrix, in one possible implementation, the transmitting terminal is according to working as forward sight
Keep pouring in defeated needs color space transitional information determine transition matrix after, there are two types of modes to determine the letter of the transition matrix
Breath；
A kind of mode is: the transmitting terminal is using the color space transitional information as being used to determine the transition matrix
Information；
When it is implemented, acquisition encoding device sends message to decoding display equipment, the first character section of message carries clear
Clear degree type information, for example, field 00 indicates that clarity type is high definition；Field 01 indicates that clarity type is SD；Field
10 indicate that clarity type is ultra high-definition；
Second field carries the brightness value range type information of source data, for example, 0 indicates Full range；1 indicates
Limited range；
Third field carries the brightness value range type information of target data, for example, 0 indicates Full range；1 indicates
Limited range；
If transmitting terminal is converted using transition matrix 1, the corresponding color space transitional information of transition matrix 1
Are as follows: clarity type is SD, the brightness value range type of source data is Full range, the brightness value model of target data
Enclosing type is Limited range；It then acquires in the message that encoding device is sent to decoding display equipment, first character section is
01；Second field is 0；Third field is 1；Decoding display equipment receives the message that coding acquisition equipment is sent, root
Color space transitional information is assured that out according to the information that each field of message carries are as follows: clarity type is SD, source number
According to brightness value range type be Full range, the brightness value range type of target data is Limited range；,
Determine that transition matrix is transition matrix 1 further according to corresponding relationship.
Another way is: the transmitting terminal determines that the current video passes according to the corresponding relationship of transition matrix and mark
The mark of the corresponding transition matrix of color space transitional information of defeated needs, and determination is described to be turned using determining mark as being used for
Change the information of matrix.
It is illustrated below, referring to the mark of transition matrix shown in table 2 and the mapping table of transition matrix.
Table 2
Above-mentioned mark can not also do specific limitation using other forms, the embodiment of the present application.If transmitting terminal
Using the conversion that transition matrix 1 carries out, then transmitting terminal sends mark 0000 as the information for determining the transition matrix
To receiving end.After receiving end receives 0000, transition matrix 1 is determined according to mapping table, using 1 turn of transition matrix
It changes.It is emphasized that the mapping table of the mark and transition matrix of transmitting terminal and receiving end is identical.
Wherein it is determined that the information of the transition matrix can have following two form:
A kind of form is mark, a corresponding mark is arranged for each transition matrix, mark is sent to by transmitting terminal
Receiving end, after receiving end receives mark, so that it may which corresponding transition matrix is determined according to mark.
Mark can be number, for example, can be 1,2,3,4,5,6,7,8,9,10,11,12, each Arabic numerals
A kind of transition matrix is respectively corresponded；The binary system of Arabic numerals is sent receiving end by transmitting terminal, and receiving end receives it
Afterwards, so that it may corresponding transition matrix is calculated according to the binary system received.
Mark can also be random binary digit, for example, corresponding first matrix of mark 0000；0010 corresponding second
A matrix；0100 corresponding third matrix；1000 corresponding 4th matrixes；Etc..Mark can be by each different performance shape
Formula, the embodiment of the present application do not do specific limitation.
Determine that the another kind of the information of the transition matrix takes the form of color space transitional information；Wherein, color is empty
Between transitional information include some or all of in following message:
The clarity type of the current video, the source color space data and the target color space data it is bright
Spend value range type.Wherein, clarity type includes SD, high definition and ultra high-definition.Specific corresponding to relationship referring to above-mentioned table 1
Shown in color space transitional information and transition matrix schematic diagram.
It is corresponding with the method that above-mentioned video is sent, a kind of method that the embodiment of the present application also proposed video reception, referring to
Attached video receiving method flow chart shown in Fig. 3, this method comprises:
Step S301, receiving end receive the target color space data that transmitting terminal is sent and the letter for determining transition matrix
Breath；Wherein, the target color space data be transmitting terminal according to transition matrix will from current video collected source color
What spatial data was converted to；
Step S302, the receiving end determine transition matrix according to the information for determining transition matrix；
Step S303, the inverse matrix of the receiving end transition matrix by the target color space data convert at
Source color space data.
The above method, receiving end is according to for determining that the information of transition matrix determines transition matrix；It is inverse with transition matrix
Matrix by target color space data convert at source color space data so that receiving end and transmitting terminal use the same matrix
Color conversion is carried out, the clarity of the color displays of receiving end is improved.
Determine that the information of transition matrix can be in one possible implementation, described to be used for there are many form of expression
The information for determining transition matrix is the mark of transition matrix；
The receiving end determines transition matrix according to the information for determining transition matrix, can pass through mark and institute
The corresponding relationship of transition matrix is stated to realize.
The receiving end determines the mark of the transition matrix according to the corresponding relationship of the mark and the transition matrix
Corresponding transition matrix.
It can also be color space transitional information directly as the information for determining transition matrix, in a kind of possible realization side
In formula, the information for determining transition matrix is color space transitional information；
The receiving end determines transition matrix according to the information for determining transition matrix, comprising:
The receiving end determines color space conversion letter according to the corresponding relationship of color space transitional information and transition matrix
Cease corresponding transition matrix；
Wherein, the color space transitional information includes some or all of in following message:
The clarity type of the current video, the source color space data and the target color space data it is bright
Spend value range type.
Wherein, the corresponding relationship of color space data and transition matrix shown in above-mentioned table 1 has been saved in receiving end.
The corresponding relationship of color space data and transition matrix that receiving end and transmitting terminal save is identical.Receiving end is according to receiving
Color space data, table look-up and be assured that out corresponding transition matrix, can accurately be gone back with the inverse matrix of transition matrix
Original goes out original color data.
As shown in figure 4, the embodiment of the present invention also provides a kind of holistic approach flow chart of video processing, specifically include as follows
Step:
Step 401, acquisition encoding device acquires out RGB data from the video of input, is sent to color space conversion；
Step 402, rgb color space data are converted to YCbCr color space data by acquisition encoding device；
Step 403, YCbCr color space data is encoded into bit stream data by acquisition encoding device；
Step 404, code stream is sent decoding display equipment by acquisition encoding device；
Step 405, decoding display equipment receives the code stream that acquisition encoding device sends over；
Step 406, decoding display equipment decodes bit stream data to obtain YCbCr color space data；
Step 407, YCbCr color space data is converted to rgb color space data by decoding display equipment；
Step 408, decoding display equipment display output video.
Corresponding with the method that above-mentioned video is sent, the embodiment of the present application also provides a kind of video sending devices, referring to attached
The structural schematic diagram of video sending device shown in fig. 5；The equipment includes memory 501 and processor 502, the memory
The computer program that can be run on the processor 502 is stored on 501, when the computer program is by the processor
When 502 execution, so that the processor 502 executes following steps:
Transition matrix is determined according to the color space transitional information that current video transmission needs；
According to the transition matrix collected source color space data aim colour will be converted to from the current video
Color space data；
The target color space data are sent to receiving end and the information for determining the transition matrix.
In a kind of possible embodiment, the processor 502 is also used to: according to color space transitional information and conversion
The corresponding relationship of matrix determines the corresponding transition matrix of color space transitional information that the current video transmission needs；
Wherein, the color space transitional information includes some or all of in following message:
The clarity type of the current video, the source color space data and the target color space data it is bright
Spend value range type.
In a kind of possible embodiment, the processor 502 is also used to, using the color space transitional information as
For determining the information of the transition matrix；Or determine that the current video transmits according to the corresponding relationship of transition matrix and mark
The mark of the corresponding transition matrix of color space transitional information needed, and using determining mark as being used to determine the conversion
The information of matrix.
In one possible implementation, the processor 502 is also used to, and determines the color that current video transmission needs
Space transitional information changes compared with the color space transitional information of the last time transmission.
In one possible implementation, the processor 502 is also used to, however, it is determined that the color that current video transmission needs
Color space transitional information does not change compared with the color space transitional information of the last time transmission, then is passed according to the last time
The transition matrix that defeated color space transitional information determines collected source color space data will turn from the current video
Target color space data are changed to, and send the target color space data to receiving end.
Corresponding with above-mentioned video receiving method, the embodiment of the present application also provides a kind of video reception apparatus, referring to attached drawing 6
Shown in video reception apparatus structural schematic diagram；The equipment includes memory 601 and processor 602, on the memory 601
It is stored with the computer program that can be run on the processor 602, when the computer program is executed by the processor 602
When, so that the processor 602 executes following steps:
Receive the target color space data that transmitting terminal is sent and the information for determining transition matrix；Wherein, the mesh
Marking color space data is that transmitting terminal collected source color space data will be turned according to transition matrix from current video
It gets in return；
Transition matrix is determined according to the information for determining transition matrix；
With the inverse matrix of the transition matrix by the target color space data convert at source color space data.
In a kind of possible embodiment, for determining that the information of transition matrix is the mark of transition matrix；The place
Reason device 602 is also used to, and according to the corresponding relationship of the mark and the transition matrix, determines that the mark of the transition matrix is corresponding
Transition matrix.
It is described for determining that the information of transition matrix is color space transitional information in a kind of possible embodiment
Processor 602 is also used to, and according to the corresponding relationship of color space transitional information and transition matrix, determines color space transitional information
Corresponding transition matrix；
Wherein, the color space transitional information includes some or all of in following message:
The clarity type of the current video, the source color space data and the target color space data it is bright
Spend value range type.
In one possible implementation, the processor 602 is also used to, and it is empty to receive the object color component that transmitting terminal is sent
Between data；Wherein, the target color space data are transmitting terminals in the color space conversion for determining that current video transmission needs
After information does not change compared with the color space transitional information of the last time transmission, the color according to the last time transmission is empty
Between the transition matrix that determines of transitional information source color space data collected from current video are converted to；
The inverse matrix of the transition matrix determined according to the information for determining transition matrix that the last time receives is by institute
Target color space data convert is stated into source color space data.
The embodiment of the present application also provides another video sending devices, send referring to attached another video shown in Fig. 7
The structural schematic diagram of equipment；Include:
Determining module 701, the color space transitional information for being needed according to current video transmission determine transition matrix；
Color space conversion module 702, for according to the transition matrix will from the current video collected source
Color space data is converted to target color space data；
Sending module 703, for sending the target color space data to receiving end and for determining the conversion square
The information of battle array.
In a kind of possible embodiment, determining module 701 is also used to according to color space transitional information and conversion square
The corresponding relationship of battle array determines the corresponding transition matrix of color space transitional information that the current video transmission needs；
Wherein, the color space transitional information includes but is not limited to some or all of in following message:
The clarity type of the current video, the source color space data and the target color space data it is bright
Spend value range type.
In a kind of possible embodiment, determining module 701 is also used to using the color space transitional information as use
In the information for determining the transition matrix；Or the transmitting terminal determined according to the corresponding relationship of transition matrix and mark it is described current
The mark for the corresponding transition matrix of color space transitional information that transmission of video needs, and using determining mark as being used to determine
The information of the transition matrix.
In one possible implementation, the determining module 701 is also used to, and determines the color that current video transmission needs
Color space transitional information changes compared with the color space transitional information of the last time transmission.
In one possible implementation, the determining module 701 is also used to, however, it is determined that current video transmission needs
Color space transitional information does not change compared with the color space transitional information of the last time transmission, then according to the last time
The transition matrix that the color space transitional information of transmission determines will from the current video collected source color space data
Target color space data are converted to, and send the target color space data to receiving end.
The embodiment of the present application also provides another video reception apparatus, referring to attached another video reception shown in Fig. 8
The structural schematic diagram of equipment；The receiving device includes:
Receiving module 801, for receiving the target color space data of transmitting terminal transmission and for determining transition matrix
Information；Wherein, the target color space data be transmitting terminal according to transition matrix will from current video collected source color
Color space data are converted to；
Determining module 802, for determining transition matrix according to the information for determining transition matrix；
Color space conversion module 803, for the inverse matrix of the transition matrix by the target color space data
It is reduced into source color space data.
In a kind of possible embodiment, determining module 802 is also used to the correspondence according to mark and the transition matrix
Relationship determines the corresponding transition matrix of the mark of the transition matrix.
In a kind of possible embodiment, determining module 802 is also used to according to color space transitional information and conversion square
The corresponding relationship of battle array, determines the corresponding transition matrix of color space transitional information；
Wherein, the color space transitional information includes some or all of in following message:
The clarity type of the current video, the source color space data and the target color space data it is bright
Spend value range type.
In one possible implementation, the receiving module 801 is also used to, and receives the object color component that transmitting terminal is sent
Spatial data；Wherein, the target color space data are that transmitting terminal turns in the color space for determining that current video transmission needs
Information is changed with the color space transitional information of the last time transmission compared to after not changing, according to the last color transmitted
What source color space data collected from current video were converted to by the transition matrix that space transitional information determines；
The color space conversion module 803 is also used to, according to the last time receive for determining transition matrix
The inverse matrix for the transition matrix that information determines is by the target color space data convert at source color space data.
The embodiment of the present invention also provides a kind of computer-readable non-volatile memory medium, including program code, when described
When program code is run on the computing device, said program code is above-mentioned for making the calculating equipment execute the embodiment of the present invention
The step of method.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application be referring to according to the present processes, equipment (system) and computer program product flow chart and/or
Block diagram describes.It should be understood that each process that can be realized by computer program instructions in flowchart and/or the block diagram and/or
The combination of process and/or box in box and flowchart and/or the block diagram.It can provide these computer program instructions to arrive
General purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices processor to generate one
Machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for realizing flowing
The device for the function of being specified in journey figure one process or multiple processes and/or block diagrams one box or multiple boxes.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (13)
1. a kind of video transmission method characterized by comprising
Transmitting terminal determines transition matrix according to the color space transitional information that current video transmission needs；
The transmitting terminal collected source color space data will be converted to according to the transition matrix from the current video
Target color space data；
The transmitting terminal sends the target color space data and the information for determining the transition matrix to receiving end.
2. the method as described in claim 1, which is characterized in that the transmitting terminal is empty according to the color that current video transmission needs
Between transitional information determine transition matrix, comprising:
The transmitting terminal determines that the current video transmission needs according to the corresponding relationship of color space transitional information and transition matrix
The corresponding transition matrix of color space transitional information wanted；
Wherein, the color space transitional information includes some or all of in following message:
The brightness of the clarity type of the current video, the source color space data and the target color space data takes
It is worth wide-style.
3. the method as described in claim 1, which is characterized in that the transmitting terminal is empty according to the color that current video transmission needs
Between after transitional information determines transition matrix, send the target color space data to receiving end and for determining the conversion
Before the information of matrix, further includes:
The transmitting terminal is using the color space transitional information as the information for being used to determine the transition matrix；Or
The transmitting terminal determines the color space that the current video transmission needs according to the corresponding relationship of transition matrix and mark
The mark of the corresponding transition matrix of transitional information, and by determining mark as the information for being used to determine the transition matrix.
4. the method as described in claim 1, which is characterized in that the transmitting terminal is empty according to the color that current video transmission needs
Between before transitional information determines transition matrix, further includes:
The transmitting terminal determines the color space of the color space transitional information that current video transmission needs and the last transmission
Transitional information is compared and is changed.
5. method as claimed in claim 4, which is characterized in that this method further include:
If the transmitting terminal determines that the color of the color space transitional information that current video transmission needs and the last transmission is empty
Between transitional information compared to not changing, then will according to the transition matrix that the color space transitional information of the last time transmission determines
Collected source color space data are converted to target color space data from the current video, and send institute to receiving end
State target color space data.
6. a kind of video receiving method characterized by comprising
Receiving end receives the target color space data that transmitting terminal is sent and the information for determining transition matrix；Wherein, described
Target color space data are that transmitting terminal collected source color space data will be carried out according to transition matrix from current video
It is converted to；
The receiving end determines transition matrix according to the information for determining transition matrix；
The inverse matrix of the receiving end transition matrix is by the target color space data convert at source color space number
According to.
7. method as claimed in claim 6, which is characterized in that the information for determining transition matrix is transition matrix
Mark；
The receiving end determines transition matrix according to the information for determining transition matrix, comprising:
The receiving end determines that the mark of the transition matrix is corresponding according to the corresponding relationship of the mark and the transition matrix
Transition matrix.
8. the method for claim 7, which is characterized in that described for determining that the information of transition matrix turns for color space
Change information；
The receiving end determines transition matrix according to the information for determining transition matrix, comprising:
The receiving end determines color space transitional information pair according to the corresponding relationship of color space transitional information and transition matrix
The transition matrix answered；
Wherein, the color space transitional information includes some or all of in following message:
The brightness of the clarity type of the current video, the source color space data and the target color space data takes
It is worth wide-style.
9. method as claimed in claim 6, which is characterized in that this method further include:
The receiving end receives the target color space data that transmitting terminal is sent；Wherein, the target color space data are hairs
Sending end is in the color space transitional information for determining the color space transitional information that current video transmission needs and the last transmission
It, will be from current video according to the transition matrix that the color space transitional information of the last time transmission determines after not changing
In collected source color space data be converted to；
The inverse square for the transition matrix that the receiving end is determined according to the information for determining transition matrix that the last time receives
Battle array is by the target color space data convert at source color space data.
10. a kind of video sending device characterized by comprising memory and processor, being stored on the memory can be
The computer program run on the processor, when the computer program is executed by the processor, so that the processing
Device executes following steps:
Transition matrix is determined according to the color space transitional information that current video transmission needs；
According to the transition matrix collected source color space data object color component sky will be converted to from the current video
Between data；
The target color space data are sent to receiving end and the information for determining the transition matrix.
11. a kind of video reception apparatus characterized by comprising including memory and processor, be stored on the memory
The computer program that can be run on the processor, when the computer program is executed by the processor, so that described
Processor executes following steps:
Receive the target color space data that transmitting terminal is sent and the information for determining transition matrix；Wherein, the aim colour
Color space data are that transmitting terminal collected source color space data will convert according to transition matrix from current video
It arrives；
Transition matrix is determined according to the information for determining transition matrix；
With the inverse matrix of the transition matrix by the target color space data convert at source color space data.
12. a kind of video sending device characterized by comprising
Determining module, the color space transitional information for being needed according to current video transmission determine transition matrix；
Color space conversion module, for according to the transition matrix will from the current video collected source color space
Data are converted to target color space data；
Sending module, the letter for sending the target color space data to receiving end and for determining the transition matrix
Breath.
13. a kind of video reception apparatus characterized by comprising
Receiving module, the information for receiving the target color space data of transmitting terminal transmission and for determining transition matrix；Its
In, the target color space data be transmitting terminal according to transition matrix will from current video collected source color space number
According to what is be converted to；
Determining module, for determining transition matrix according to the information for determining transition matrix；
Color space conversion module, for the inverse matrix of the transition matrix by the target color space data convert Cheng Yuan
Color space data.
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