CN110381278A - Method and apparatus for color space 4:4:4 transmission - Google Patents
Method and apparatus for color space 4:4:4 transmission Download PDFInfo
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- CN110381278A CN110381278A CN201910836300.6A CN201910836300A CN110381278A CN 110381278 A CN110381278 A CN 110381278A CN 201910836300 A CN201910836300 A CN 201910836300A CN 110381278 A CN110381278 A CN 110381278A
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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
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
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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
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0102—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving the resampling of the incoming video signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0135—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving interpolation processes
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Color Image Communication Systems (AREA)
- Color Television Systems (AREA)
Abstract
The present invention provides a kind of method for color space 4:4:4 transmission comprising: the source data of input color space 4:4:4 sample format；Source data is converted to the second intermediate data of any sample format in multichannel color space 4:2:2 or 4:2:0 sample format；Second intermediate data is carried out data transmission；Receive the second intermediate data；Second intermediate data is reduced into the source data of color space 4:4:4 sample format；Export source data.The present invention also provides a kind of equipment based on this method.It is transmitted by the image data that the image data of the bandwidth color space 4:4:4 sample format excellent with gamut range is converted to multichannel color space 4:2:2 or 4:2:0 sample format, then it is restored before output as the image data of color space 4:4:4 sample format, realize the high speed fidelity transmission of the image data of color space 4:4:4 sample format, it solves and directlys adopt the data format of color space 4:4:4 and transmitted, its efficiency of transmission is low, is unable to satisfy the problem of masses need.
Description
Technical field
The present invention relates to multimedia technology field, in particular to it is a kind of for color space 4:4:4 transmission method and set
It is standby.
Background technique
Since color space 4:4:4 is full bandwidth and panchromatic degree highest sampling recording and the way of output, bandwidth and colour gamut
All than modes such as color space 4:2:2 or 4:2:0, there are the superior of matter for range.In major applications occasion, especially meeting,
Large screen display etc. requires the occasion that details reduction is carried out to single pixel image, it is necessary at the acquisition using color space 4:4:4
Reason system.Although to occupy huge band however, the sample mode of color space 4:4:4 can guarantee highest image quality
Width, the data format for directlying adopt color space 4:4:4 are transmitted, and efficiency of transmission (code rate) is low.
Summary of the invention
It is transmitted to solve to directly adopt the data format of color space 4:4:4, efficiency of transmission (code rate) is low
The problem of, the present invention proposes a kind of method and apparatus for color space 4:4:4 transmission.Technical solution provided by the invention
Are as follows:
A method of it is transmitted for color space 4:4:4, comprising: the source number of input color space 4:4:4 sample format
According to；Source data is converted to any in multichannel color space 4:2:2 sample format and multichannel color space 4:2:0 sample format
Second intermediate data of sample format；Second intermediate data is carried out data transmission；Receive the second intermediate data；Among second
Data convert at color space 4:4:4 sample format source data；Export source data.
Provided by the present invention for the method for color space 4:4:4 transmission, it is preferable that " be converted to source data in step
In multichannel color space 4:2:2 sample format and multichannel color space 4:2:0 sample format in the second of any sample format
Between data " after, before step " carrying out data transmission the second intermediate data ", the second intermediate data is encoded；In step
Suddenly after " receiving the second intermediate data ", the second intermediate data " is reduced into the source number of color space 4:4:4 sample format by step
According to " before, the second intermediate data is decoded.
Provided by the present invention for the method for color space 4:4:4 transmission, it is preferable that step " is converted to source data more
In road color space 4:2:2 sample format and multichannel color space 4:2:0 sample format among the second of any sample format
Data " specifically: the output format of converting source data obtains the first intermediate data；The first mediant is converted by conversion circuit
According to sample format, obtain the second intermediate data.
Provided by the present invention for the method for color space 4:4:4 transmission, it is preferable that data are transmitted especially by Ethernet
Transmission.
The present invention also provides a kind of equipment for color space 4:4:4 transmission, comprising: the image successively communicated to connect is defeated
Enter unit, the first image conversion unit, image transmitting unit, the second image conversion unit, image output unit；Described image is defeated
Entering unit includes the input interface for supporting color space 4:4:4 sample format；The first image converting unit is used for color
The source data of space 4:4:4 sample format is converted to multichannel color space 4:2:2 sample format or multichannel color space 4:2:0
The image data of sample format；Second image conversion unit is used for multichannel color space 4:2:2 sample format or more
The image data of road color space 4:2:0 sample format is converted to the source data of color space 4:4:4 sample format；Image output
Unit includes the output interface for supporting color space 4:4:4 sample format.
Provided by the present invention for the equipment of color space 4:4:4 transmission, it is preferable that further include coding chip and decoding core
Piece；The input terminal of the coding chip and the output end of the first image converting unit communicate to connect；The coding chip
The input terminal of output end and described image transmission unit communicates to connect；Input terminal and the described image transmission of the decoding chip are single
The output end communication connection of member；The input terminal communication link of the output end of the decoding chip and second image conversion unit
It connects；4:2:2 coding chip of the coding chip particularly for coding color space 4:2:2 sample format, the decoding core
4:2:2 decoding chip of the piece particularly for decoding color space 4:2:2 sample format；Alternatively, the coding chip is specially
For encoding the 4:2:0 coding chip of color space 4:2:0 sample format, the decoding chip is empty particularly for decoding color
Between 4:2:0 sample format 4:2:0 decoding chip.
Provided by the present invention for the equipment of color space 4:4:4 transmission, it is preferable that the first image converting unit is also
Including signal conversion chip；The signal conversion chip is for being converted to the image data of color space 4:4:4 sample format
The image data of the color space 4:4:4 sample format mutually compatible with the input terminal of the first image converting unit exports lattice
Formula.
Provided by the present invention for the equipment of color space 4:4:4 transmission, it is preferable that the first image converting unit tool
Body is conversion circuit；Fpga chip is serially connected in the conversion circuit.
Provided by the present invention for the equipment of color space 4:4:4 transmission, it is preferable that the output of the signal conversion chip
Interface includes RGB, LVDS, BT.1120, MIPI any one or more of；The input interface of the signal conversion chip includes
Any one of HDMI or VGA or two kinds.
The equipment for color space 4:4:4 transmission that the present invention also supplies, it is preferable that the output of described image output unit
Interface includes any one of HDMI or VGA or two kinds.
The present invention have the advantage that or the utility model has the advantages that
The present invention provides a kind of method for color space 4:4:4 transmission comprising following steps: input color space
The source data of 4:4:4 sample format；Source data is converted into multichannel color space 4:2:2 sample format and multichannel color space 4:
Second intermediate data of any sample format in 2:0 sample format；Second intermediate data is carried out data transmission；Receive second
Intermediate data；Second intermediate data is reduced into the source data of color space 4:4:4 sample format；Export source data.Passing through will
Bandwidth and the source data of the excellent color space 4:4:4 sample format of gamut range are converted to multichannel color space 4:2:2 sampling
Second intermediate data of format or multichannel color space 4:2:0 sample format is quickly transmitted, and is then restored before output
For the source data of color space 4:4:4 sample format.Realize the high speed fidelity of the source data of color space 4:4:4 sample format
Transmission solves and directlys adopt the data format of color space 4:4:4 and transmitted, and efficiency of transmission is low, is unable to satisfy big
The technical issues of all living creatures' work and need of work.
The present invention also provides a kind of equipment for the transmission of color space 4:4:4 high speed fidelity comprising: successively communicate
The image input units of connection, the first image conversion unit, image transmitting unit, the second image conversion unit, image output are single
Member；Image input units include the input interface for supporting color space 4:4:4 sample format；First image conversion unit is used for will
The source data of color space 4:4:4 sample format is converted to multichannel color space 4:2:2 sample format or multichannel color space
The image data of 4:2:0 sample format；Second image conversion unit is used for multichannel color space 4:2:2 sample format or more
The image data of road color space 4:2:0 sample format is converted to the source data of color space 4:4:4 sample format；Image output
Unit includes the output interface for supporting color space 4:4:4 sample format.Color may be implemented based on equipment of the invention
The high code rate fidelity of the image data of space 4:4:4 sample format transmits.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, the present invention and its feature, outer
Shape and advantage will become more apparent.Attached drawing is not drawn to scale deliberately, it is preferred that emphasis is show the gist of the present invention.
Fig. 1 is the step process of the method for the transmission for color space 4:4:4 of a specific embodiment of the invention
Figure；
Fig. 2 is the apparatus sketch of the transmission for color space 4:4:4 of a specific embodiment of the invention.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Explanation, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Therefore,
The range of claimed invention is not intended to limit to the detailed description in the embodiment of the present invention provided in attached drawing below,
But it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not making wound
Every other embodiment obtained under the premise of the property made is worked, belongs to protection scope of the present invention.
Embodiment 1
In the prior art, it although the sample mode of color space 4:4:4 can guarantee highest image quality, to occupy
Enormous bandwidth, the data format for directlying adopt color space 4:4:4 are transmitted, and efficiency of transmission is low, is unable to satisfy masses
It needs.In order to solve the above technical problems, the embodiment provides a kind of methods for color space 4:4:4 transmission.
As shown in Figure 1, the technical solution that the embodiment of the present invention 1 provides includes:
S101: the source data of input color space 4:4:4 sample format；
S102: source data is converted into multichannel color space 4:2:2 sample format and multichannel color space 4:2:0 samples lattice
Second intermediate data of any sample format in formula；
S103: the second intermediate data is carried out data transmission；
S104: the second intermediate data is received；
S105: the second intermediate data is reduced into the source data of color space 4:4:4 sample format；
S106: output source data.
The embodiment of the present invention 1 provide for color space 4:4:4 transmission method specific implementation include but
Be not limited to be exclusively used in color space 4:4:4 transmission device (referring to embodiment 2) or it is other can be program come by way of realizing.
The transmission method is by being converted to multichannel for the image data of bandwidth and the excellent color space 4:4:4 sample format of gamut range
The image data of color space 4:2:2 sample format or multichannel color space 4:2:0 sample format is transmitted, and is then being exported
Before restore as the image data of color space 4:4:4 sample format.Realize the picture number of color space 4:4:4 sample format
According to the transmission of high speed fidelity, avoid and directly adopt the data format of color space 4:4:4 and transmitted, transmission efficiency is low
Under, it is unable to satisfy the problem of masses need.
For ease of description, with the transmission based on " color space 4:4:4- color space 4:2:2- color space 4:4:4 "
For method.Firstly, the YUV4:4:4 data (source data) of input 1920x1080；Later, source data is converted into two groups
The data (the second intermediate data) of YUV4:2:2；Later, the data of two groups of YUV4:2:2 (the second intermediate data) is subjected to data
Transmission；Later, the data of two groups of YUV4:2:2 (the second intermediate data) are reduced into color space 4:4:4 sample format (source number
According to), to realize the high speed fidelity transmission of the source data of YUV4:4:4 sample format.
It is full while code rate in order to further increase the image data of color space 4:2:2 format or 4:2:0 format
Sufficient certain mass (requirement or subjective assessment score of signal-to-noise ratio), what the present embodiment 1 provided is used for color space 4:4:4 transmission
Method, it is preferable that further include:
S201: the second intermediate data is encoded；
S202: the second intermediate data is decoded；
Wherein, step S201 is located at after step S102, before step S103；
Wherein, step S202 is located at after step S104, before step S105.
It is encoded by the second intermediate data to color space 4:2:2 format, can satisfy certain mass (signal-to-noise ratio
Requirement or subjective assessment score) under conditions of, the information that image data includes is indicated with less bit, to further mention
The code rate of the image data of high color space 4:2:2 format or color space 4:2:0 format.The specific implementation wherein encoded
Including but not limited to using the various coding chips for color space 4:2:2 format or color space 4:2:0 format or
Encoder.For example, the PAL/NTSC serial digital encoder of color space 4:2:2 format, using the encoder to color space
The concrete mode and algorithm that the image data of 4:2:2 format is encoded belong to well known to those skilled in the art, do not make herein
It repeats.
Correspondingly, after step s 104, it before step S105, needs to the color space 4:2:2 lattice after coding
The image data of formula is decoded, to be conducive to the smooth implementation of step S105.Wherein decoded specific implementation include but
It is not limited to using the various decoding chips or decoder for being used for color space 4:2:2 format or color space 4:2:0 format.
The concrete mode and algorithm category that the image data of color space 4:2:2 format is decoded using decoding chip or decoder
In well known to those skilled in the art, also do not repeat herein.
For the scope of application for the source data that further expansion is applicable in for the method for color space 4:4:4 transmission, subtract
It is few because output format it is incompatible caused by method can not implement the problem of, what the embodiment of the present invention 1 provided is used for color space
The method of 4:4:4 transmission, it is preferable that step S102 specifically:
S301: the output format of converting source data obtains the first intermediate data；
S302: the sample format of the first intermediate data is converted by conversion circuit, obtains the second intermediate data.
By first converting to output format, the conversion of sample format is then carried out again, can be used for further expansion
The scope of application of source data that the method for color space 4:4:4 transmission is applicable in, reduce because output format it is incompatible caused by just
The problem of method can not be implemented.Wherein, step S301 can be realized using signal conversion chip.Using signal conversion chip to color
The conversion that the image data of color space 4:4:4 format carries out output format belongs to well known to those skilled in the art, does not make herein
It repeats.Wherein, step S302 includes but is not limited to, by rational design (including but not limited to by color space 4:4:4 format
Image data carries out the segmentation of odd number even number by column, and 1 tunnel samples odd column, and 1 tunnel samples even column), it, will using 2 times of data volume
All information of the source data of color space 4:4:4 format are put into the image data of 2 road color space 4:2:2 formats, obtain 2
Second intermediate data of road color space 4:2:2 format.
Wherein, conversion circuit includes but is not limited to conversion circuit or PLC control circuit based on ASIC.Such as based on
The conversion circuit of fpga chip.The conversion circuit of FPGA is conducive to the simplification of conversion circuit and integrates.Conversion circuit can also be
The sample format that the first intermediate data of conversion is realized by way of bus-sharing or extension, obtains the second intermediate data.For example,
By extending and resequencing, the first intermediate data of color space 4:4:4 sample format is not distributed with having the colorful one loss
The data of any sample format into multichannel color space 4:2:2 sample format and multichannel color space 4:2:0 sample format
In format, the second intermediate data is obtained.In view of in the prior art, using based on various types of conversion circuits progress picture number
According to sample format be converted to multichannel color space 4:2:2 sample format and multichannel color space 4:2:0 from color space 4:4:4
The technological means of the image data of any sample format is dawn known to a person skilled in the art in sample format, therefore herein
It is not described in more detail, those skilled in the art should be understood that.In order to realize the remote high-speed transmission of image data,
The present embodiment 1 provide for color space 4:4:4 transmission method, it is preferable that image data data transmission especially by
The Ethernet of high reliability, high-performance and high applicability is transmitted, and is advantageously implemented the remote high-speed transmission of image data, together
When make the method transmitted for color space 4:4:4 that can obtain more preferable widely application under remote environment.
Embodiment 2
Although the sample mode of color space 4:4:4 can guarantee highest image quality, enormous bandwidth is occupied, directly
It connects and is transmitted using the data format of color space 4:4:4, efficiency of transmission is low, is unable to satisfy public needs, needs out
The transmission device for sending out a kind of for the high code rate of color space 4:4:4 high-fidelity.
As shown in Fig. 1~2, the embodiment of the present invention 2 provides a kind of transmission device for color space 4:4:4, comprising:
Image input units, the first image conversion unit, image transmitting unit, the second image conversion unit, the figure successively communicated to connect
As output unit；Image input units include the input interface for supporting color space 4:4:4 sample format；The conversion of first image is single
Member is for being converted to multichannel color space 4:2:2 sample format or multichannel for the source data of color space 4:4:4 sample format
The image data of color space 4:2:0 sample format；Second image conversion unit is used to multichannel color space 4:2:2 sampling lattice
Formula or the image data of multichannel color space 4:2:0 sample format are converted to the source data of color space 4:4:4 sample format；
Image output unit includes the output interface for supporting color space 4:4:4 sample format.
The specifically used step for being used for the transmission device of the high code rate of color space 4:4:4 high-fidelity includes: defeated by image
Enter the source data of unit acquisition color space 4:4:4 format, and source data is inputted into the first image conversion unit；First image turns
It changes unit and is converted to source data in multichannel color space 4:2:2 sample format and multichannel color space 4:2:0 sample format and appoint
A kind of second intermediate data of sample format, and export to image transmitting unit；Second intermediate data passes through image transmitting unit
Carry out data transmission, then inputs the second image conversion unit；Second intermediate data is restored quality by the second image conversion unit
The source data of color space 4:4:4 sample format, then by the source number of image output unit output color space 4:4:4 sample format
According to.The high speed fidelity transmission of the image data of color space 4:4:4 sample format may be implemented based on equipment of the invention, effectively
It solves and directlys adopt the data format of color space 4:4:4 and transmitted, efficiency of transmission is low, is unable to satisfy public needs
The technical issues of.
Meet certain mass (letter while code rate in order to further increase the image data of color space 4:2:2 format
Make an uproar the requirement or subjective assessment score of ratio), the transmission device for color space 4:4:4 that the embodiment of the present invention 2 provides is excellent
Selection of land, equipment further include coding chip and decoding chip；The output end of the input terminal of coding chip and the first image conversion unit
Communication connection；The output end of coding chip is communicated to connect in the input terminal of image transmitting unit；The input terminal and figure of decoding chip
As the output end of transmission unit communicates to connect；The input terminal communication link of the output end of decoding chip and the second image conversion unit
It connects；
It should be noted that coding chip is the 4:2:2 coding chip for encoding color space 4:2:2 sample format,
Decoding chip is the 4:2:2 decoding chip for decoding color space 4:2:2 sample format；Or coding chip is for encoding
The 4:2:0 coding chip of color space 4:2:0 sample format, decoding chip is for decoding color space 4:2:0 sample format
4:2:0 decoding chip.
The difference of its opposite transmission device for being previously used for color space 4:4:4 is, by the first image conversion unit
Output end output the second intermediate data encoded by coding chip after again input picture transmission unit carry out data transmission；
Then, inside by the output end input decoding chip of image transmitting unit；It is input to the second image again after decoded chip decoding
The input terminal of converting unit.
It is encoded by the second intermediate data to color space 4:2:2 format, can satisfy certain mass (signal-to-noise ratio
Requirement or subjective assessment score) under conditions of, the information that image data includes is indicated with less bit, to further mention
The code rate of the image data of high color space 4:2:2 format or color space 4:2:0 format.Correspondingly, it needs to coding
The image data of color space 4:2:2 format afterwards is decoded, to be conducive to the normal operation of follow-up equipment.
For the scope of application for the source data that further expansion is applicable in for the method for color space 4:4:4 transmission, subtract
It is few because output format it is incompatible caused by method can not implement the problem of, what the embodiment of the present invention 2 provided is used for color space
The transmission device of 4:4:4, it is preferable that the first image conversion unit further includes signal conversion chip；Signal conversion chip is used for will
It is empty that the image data of color space 4:4:4 sample format is converted to the color mutually compatible with the input terminal of the first image conversion unit
Between 4:4:4 sample format image data output format.By the conversion function of signal conversion chip by the output lattice of source data
The image data that formula is converted to color space 4:4:4 sample format that can be mutually compatible with the input terminal of the first image conversion unit is defeated
Format out obtains the first intermediate data, the source data that the method that further expansion is used for color space 4:4:4 transmission is applicable in
The scope of application, reduce because output format it is incompatible caused by the above method can not be successfully implementation the phenomenon that generation.
In the prior art, the output format of public most common image data is HDMI or VGA, and for image data
For operation and transmission, the format of HDMI or VGA are not but best.The most common of image data is made in order to adapt to masses
With demand, while being convenient for the operation and transmission of image.The transmission for color space 4:4:4 that the embodiment of the present invention 2 provides
Equipment, it is preferable that the output interface of signal conversion chip includes RGB, LVDS, BT.1120, MIPI any one or more of；
The input interface of signal conversion chip includes any one of HDMI or VGA or two kinds.RGB, LVDS, BT.1120, MIPI can
It is adapted to well with conversion circuit, to further increase for the working efficiency of the transmission device of color space 4:4:4 and steady
It is qualitative.
In order to meet major applications occasion, especially meeting, large screen display etc. requires to carry out single pixel image thin
Save the occasion of reduction, the transmission device for color space 4:4:4 that the embodiment of the present invention 2 provides, it is preferable that image output
The output interface of unit includes any one of HDMI or VGA or two kinds.HDMI, VGA output interface are most normal in the prior art
The input interface for the large screen display seen can satisfy major applications occasion, especially meeting, the requirement such as large screen display
The occasion of details reduction is carried out to single pixel image.
In order to be conducive to the simplification of conversion circuit and integrate, what the embodiment of the present invention 2 provided is used for color space 4:4:4's
Transmission device, it is preferable that the first image conversion unit is specially conversion circuit；Fpga chip is serially connected in conversion circuit.FPGA
Chip is as a kind of programmable circuit element that development is the most mature, by the image data (source of color space 4:4:4 format
Data) be converted to color space 4:4:4 format image data (the second intermediate data) research it is very mature.Using base
In the conversion circuit of fpga chip, it is advantageously used for the operation of the efficient stable of the transmission device of color space 4:4:4.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations
Equivalent structure transformation made by description of the invention and accompanying drawing content is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of method for color space 4:4:4 transmission characterized by comprising
Input the source data of color space 4:4:4 sample format；
Source data is converted to any in multichannel color space 4:2:2 sample format and multichannel color space 4:2:0 sample format
Second intermediate data of kind sample format；
Second intermediate data is carried out data transmission；
Receive the second intermediate data；
Second intermediate data is reduced into the source data of color space 4:4:4 sample format；
Export source data.
2. the method according to claim 1 for color space 4:4:4 transmission, which is characterized in that in step " by source number
According to being converted to any sample format in multichannel color space 4:2:2 sample format and multichannel color space 4:2:0 sample format
The second intermediate data " after, before step " carrying out data transmission the second intermediate data ", the second intermediate data is compiled
Code；
After step " receiving the second intermediate data ", the second intermediate data " is reduced into color space 4:4:4 sampling lattice by step
Before the source data of formula ", the second intermediate data is decoded.
3. the method according to claim 1 for color space 4:4:4 transmission, which is characterized in that step is " by source data
Be converted to any sample format in multichannel color space 4:2:2 sample format and multichannel color space 4:2:0 sample format
Second intermediate data " specifically:
The output format of converting source data obtains the first intermediate data；
The sample format that the first intermediate data is converted by conversion circuit, obtains the second intermediate data.
4. the method according to claim 1 for color space 4:4:4 transmission, which is characterized in that data transmission is specific
It is transmitted by Ethernet.
5. a kind of equipment for color space 4:4:4 transmission characterized by comprising the image input successively communicated to connect
Unit, the first image conversion unit, image transmitting unit, the second image conversion unit, image output unit；
Described image input unit includes the input interface for supporting color space 4:4:4 sample format；
The first image converting unit is used to the source data of color space 4:4:4 sample format being converted to multichannel color space
The image data of 4:2:2 sample format or multichannel color space 4:2:0 sample format；
Second image conversion unit is used for multichannel color space 4:2:2 sample format or multichannel color space 4:2:0
The image data of sample format is reduced to the source data of color space 4:4:4 sample format；
Image output unit includes the output interface for supporting color space 4:4:4 sample format.
6. the equipment according to claim 5 for color space 4:4:4 transmission, which is characterized in that the equipment is also wrapped
Include coding chip and decoding chip；
The input terminal of the coding chip and the output end of the first image converting unit communicate to connect；The coding chip
The input terminal of output end and described image transmission unit communicates to connect；
The input terminal of the decoding chip and the output end of described image transmission unit communicate to connect；The output of the decoding chip
End and the input terminal of second image conversion unit communicate to connect；
4:2:2 coding chip of the coding chip particularly for coding color space 4:2:2 sample format, the decoding core
4:2:2 decoding chip of the piece particularly for decoding color space 4:2:2 sample format；Alternatively, the coding chip is specially
For encoding the 4:2:0 coding chip of color space 4:2:0 sample format, the decoding chip is empty particularly for decoding color
Between 4:2:0 sample format 4:2:0 decoding chip.
7. the equipment according to claim 5 for color space 4:4:4 transmission, which is characterized in that the first image
Converting unit further includes signal conversion chip；
The signal conversion chip is used to be converted to the image data of color space 4:4:4 sample format and the first image
The image data output format for the color space 4:4:4 sample format that the input terminal of converting unit is mutually compatible with.
8. the equipment according to claim 5 for color space 4:4:4 transmission, which is characterized in that the first image
Converting unit is specially conversion circuit；Fpga chip is serially connected in the conversion circuit.
9. the equipment according to claim 7 for color space 4:4:4 transmission, which is characterized in that the signal conversion
The output interface of chip includes RGB, LVDS, BT.1120, MIPI any one or more of；The signal conversion chip it is defeated
Incoming interface includes any one of HDMI or VGA or two kinds.
10. the equipment according to claim 5 for color space 4:4:4 transmission, which is characterized in that described image output
The output interface of unit includes any one of HDMI or VGA or two kinds.
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