CN108810543A - The compensation method of Video coding and device - Google Patents
The compensation method of Video coding and device Download PDFInfo
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- CN108810543A CN108810543A CN201810605725.1A CN201810605725A CN108810543A CN 108810543 A CN108810543 A CN 108810543A CN 201810605725 A CN201810605725 A CN 201810605725A CN 108810543 A CN108810543 A CN 108810543A
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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
- H04N19/182—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 pixel
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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
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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
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
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Abstract
A kind of compensation method of Video coding provided in an embodiment of the present invention and device are more than the band of number threshold value by acquired each band, selecting the pixel number for including, as target stripe；Acquired each band is determined by the pixel value of each pixel in coding unit；The pixel value of each pixel in the target stripe is compensated.The present embodiment reduces bin number, therefore can improve code efficiency by selecting the band that pixel is more than number threshold value.
Description
Technical field
The present invention relates to technical field of video coding, the compensation method more particularly to a kind of Video coding and device.
Background technology
With the universalness of high-resolution capture apparatus, internet video amount rapidly increases.The prior art uses a new generation
Video encoding standard HEVC (High Efficiency Video Coding, efficient video coding) encodes video.
In HEVC, encoder will form the primitive frame image segmentation of video into CTU (CodingTreeUnit, code tree
Unit), then each CTU is encoded.CTU points, for CU, (CodingUnit, coding are single in the form of quaternary tree for encoder
Member), the pixel value of pixel in CU is reconstructed, the pixel value of the pixel after reconstruct is mended using compensation method
It repays, then the pixel after compensation is encoded.SAO (Sample adaptive are introduced in HEVC in the prior art
Offset, it is adaptively sampled point compensation) in band-like compensation method, the pixel value of pixel in CU is compensated.Use SAO
In band-like compensation method it is as follows to the process of the pixel compensation value of pixel in CU：
It is 32 bands by the pixel value range 0-255 even partitions of the pixel of a coding unit, each band
Pixel value is the pixel value after reconstruct.Then by the pixel value after reconstruct compared with the pixel value of primitive frame image, for each
Band calculates the average error value that band includes pixel pixel value, using the average error value as the average error value of band.
The corresponding bias of each band is calculated using the average error value of each band, it will be on the pixel value after the reconstruct of each band
In addition the bias of corresponding band, compensates the pixel value in CU.
The pixel number that each band includes is more, since the prior art needs to calculate the corresponding biasing of all bands
Value, realization compensate all pixels value in CU, and the time is longer, therefore video coding efficiency is not high.
Invention content
A kind of compensation method for being designed to provide Video coding of the embodiment of the present invention and device, it is unnecessary by reducing
Bin number, realize improve Video coding efficiency.Specific technical solution is as follows：
In a first aspect, an embodiment of the present invention provides a kind of compensation methodes of Video coding, including：
In acquired each band, it is more than the band of number threshold value to select the pixel number for including, and is determined as mesh
Mark band；Acquired each band is determined by the pixel value of each pixel in coding unit；
The pixel value of each pixel in the target stripe is compensated.
Optionally, following steps may be used, determine acquired each band：
The pixel value of each pixel in obtained coding unit is ranked up；
According to preset pixel value step-length, the pixel value of each pixel after sequence is divided into the first preset quantity
Acquired band.
Optionally, the pixel value to each pixel in the target stripe compensate including：
By the pixel value of primitive frame image compared with the pixel value after reconstruct, each pixel in each target stripe is calculated
Error amount；
For each target stripe, by the average value of the error amount of each pixel in target stripe, as target stripe
Average error value；
For each target stripe, the average error value of target stripe is determined as the corresponding bias of target stripe；
For each target stripe, by the pixel value of pixel in target stripe, biasing corresponding with the target stripe
Value is added, and is compensated to the pixel value of each pixel in the target stripe.
Optionally, after the pixel value of each pixel compensates in described to the target stripe, the method
Further include：
Target stripe after compensation is encoded.
Optionally, the target stripe after described pair of compensation, which encode, includes：
According to the mean error of each target stripe after having been compensated, after the compensation for selecting average error value minimum
Target stripe is as initial target band；
According to minimum pixel value in each target stripe after compensation, each target stripe after compensation is ranked up；
According to the sequence after each target stripe sequence after compensation second is selected since the initial target band
Target stripe after preset quantity compensation is as target code band；The target code band includes initial target band；
The target code band is encoded.
Optionally, following steps may be used, number threshold value is calculated：
The value that the length of coding unit is multiplied with height, the total number of pixel is included as the coding unit；
The result that total number of the coding unit comprising pixel is multiplied with preset ratio value P is as number threshold value；0
<P<1。
Second aspect, an embodiment of the present invention provides a kind of compensation devices of Video coding, including：
Determining module is more than number threshold value in acquired each band, selecting the pixel number for including
Band is determined as target stripe；Acquired each band is true by the pixel value of each pixel in coding unit
Fixed；
Compensating module is compensated for the pixel value to each pixel in the target stripe.
Optionally, the determining module further includes：
Sorting subunit, for the pixel value of each pixel in obtained coding unit to be ranked up；
Target subelement, for according to preset pixel value step-length, the pixel value of each pixel after sequence to be divided
For the acquired band of the first preset quantity.
Optionally, the compensating module includes：
Error calculation subelement, for compared with the pixel value after reconstruct, calculating each the pixel value of primitive frame image
The error amount of each pixel in target stripe；
Error determination subelement, for being directed to each target stripe, by the error amount of each pixel in target stripe
Average value, the average error value as target stripe；
Computation subunit is biased, for being directed to each target stripe, the average error value of target stripe is determined as target
The corresponding bias of band；
Subelement is compensated, for being directed to each target stripe, by the pixel value of pixel in target stripe, with the target
The corresponding bias of band is added, and is compensated to the pixel value of each pixel in the target stripe.
Optionally, the compensation device of the Video coding further includes：
Coding module, for being encoded to the target stripe after compensation.
Optionally, the coding module includes：
Subelement is originated, according to the mean error of each target stripe after having been compensated, selects average error value most
Target stripe after small compensation is as initial target band；
Sorting subunit, according to minimum pixel value in each target stripe after compensation, by each target item after compensation
Band is ranked up；
Subelement is selected, according to the sequence after each target stripe sequence after compensation, is opened from the initial target band
Begin, the target stripe after selecting the second preset quantity to compensate is as target code band；The target code band includes
Beginning target stripe；
Coded sub-units encode the target code band.
Optionally, the determining module further includes：
Pixel subelement, the value for the length of coding unit to be multiplied with height include pixel as the coding unit
Total number；
Threshold value subelement, the knot for total number of the coding unit comprising pixel to be multiplied with preset ratio value P
Fruit is as number threshold value；0<P<1.
At the another aspect that the present invention is implemented, a kind of computer readable storage medium is additionally provided, it is described computer-readable
Instruction is stored in storage medium, when run on a computer so that computer executes any of the above-described described one kind and regards
The compensation method of frequency coding.
At the another aspect that the present invention is implemented, the embodiment of the present invention additionally provides a kind of computer program production comprising instruction
Product, when run on a computer so that computer executes a kind of compensation method of any of the above-described Video coding.
A kind of compensation method of Video coding provided in an embodiment of the present invention and device, by acquired each band
In, it is more than the band of number threshold value to select the pixel number for including, as target stripe；Acquired each band is
It is determined by the pixel value of each pixel in coding unit；The pixel value of each pixel in the target stripe is carried out
Compensation.The present embodiment includes band that pixel number is more than number threshold value by selecting, and reduces bin number, therefore can be with
Improve code efficiency.
Certainly, implement any of the products of the present invention or method it is not absolutely required at the same reach all the above excellent
Point.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described.
Fig. 1 is a kind of flow chart of the compensation method of Video coding provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart determining acquired each band provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart calculating number threshold value provided in an embodiment of the present invention；
Fig. 4 is a kind of flow to the pixel compensation value of each pixel in target stripe provided in an embodiment of the present invention
Figure；
Fig. 5 is the flow chart that the target stripe after a kind of compensation provided in an embodiment of the present invention is encoded；
Fig. 6 is a kind of structure chart of the compensation device of Video coding provided in an embodiment of the present invention；
Fig. 7 is the structure chart of a kind of electronic equipment provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention is described.
For the prior art by calculating the corresponding bias of all bands, it is follow-up realize to all pixels value in CU into
Row compensation, the time is longer, the problem for causing video coding efficiency not high, a kind of benefit of Video coding provided in an embodiment of the present invention
Compensation method and device are more than the band of number threshold value by acquired each band, selecting the pixel number for including,
As target stripe；The pixel value of each pixel in the target stripe is compensated.The present embodiment includes by selecting
Pixel number is more than the band of number threshold value, reduces bin number, therefore can improve code efficiency.
A kind of compensation method of Video coding provided in an embodiment of the present invention is briefly described first below.
A kind of compensation method of Video coding provided in an embodiment of the present invention, is applied to electronic equipment, and further electronics is set
Standby can be mobile phone, computer, server, intelligent mobile terminal equipment, wearable intelligent mobile terminal equipment etc..It does not do herein
It limits, any electronic equipment that the present invention may be implemented all belongs to the scope of protection of the present invention.
As shown in Figure 1, an embodiment of the present invention provides a kind of compensation methodes of Video coding, including：
S101, in acquired each band, it is more than the band of number threshold value to select the pixel number for including, and is determined
For target stripe；Acquired each band is determined by the pixel value of each pixel in coding unit；
Wherein, number threshold value can be artificially according to the preset numerical value of industry experience, and presetting number threshold value can
To save the time of selection target band, basis is provided for the follow-up efficiency for improving compensation target stripe.
Such as：Acquired each band be respectively [64,71], [72,79], [80,87], [88,95], [96,103],
[104,111], [112,119], [120,127], the pixel number that corresponding each band includes is respectively 123,74,198,
34,107,23,165,156, number threshold value is 100, the picture that acquired band [72,79], [88,95], [96,103] include
Vegetarian refreshments number is less than 100, and acquired band [64,71], [80,87], [104,111], [112,119], [120,127] are made
For target stripe.
S102 compensates the pixel value of each pixel in target stripe.
In order to realize that following at least one possible realization may be used in the efficiency for improving compensation target stripe, above-mentioned S102
Mode compensates the pixel value of each pixel in target stripe：
In one possible implementation, corresponding bias is pre-set to each target stripe, by target stripe
In each pixel pixel value add bias corresponding with the target stripe, compensate.
By pre-setting the realization method of the corresponding bias of each target stripe, can save to each target stripe
The time of compensation.
The embodiment of the present invention is more than number threshold value by acquired each band, selecting the pixel number for including
Band, as target stripe；The pixel value of each pixel in target stripe is compensated.The present embodiment is by selecting packet
Number containing pixel is more than the band of number threshold value, reduces bin number, therefore can improve code efficiency.
On the basis of a kind of compensation method of Video coding shown in Fig. 1, as shown in Fig. 2, one kind of the embodiment of the present invention is optional
Embodiment in, can determine acquired each band as follows：
The pixel value of each pixel in obtained coding unit is ranked up by S201；
In order to realize that following at least one possible realization may be used in the efficiency for improving compensation target stripe, above-mentioned S201
The pixel value of each pixel in obtained coding unit is ranked up by mode：
In one possible implementation, bubble sort may be used, selected and sorted, insertion sort Shell sorting, return
And sort, quicksort, heapsort, count sort, bucket sort or radix sorting, any method that can be ranked up it is right
The pixel value of each pixel carries out sequence from big to small in obtained coding unit.
Sequence from big to small is carried out to the pixel value of each pixel in obtained coding unit, can be to divide mesh
Mark band saves the time.
In alternatively possible realization method, it may be used using bubble sort, selected and sorted, insertion sort Xi Er rows
Sequence, merger sequence, quicksort, heapsort, count sort, bucket sort or radix sorting, any side that can be ranked up
Method carries out sequence from small to large to the pixel value of each pixel in obtained coding unit.
Sequence from small to large is carried out to the pixel value of each pixel in obtained coding unit, can be to divide mesh
Mark band saves the time.
The pixel value of each pixel after sequence is divided into first and preset by S202 according to preset pixel value step-length
The acquired band of quantity.
Wherein, preset pixel value step-length can be the value artificially set according to industry experience, preset pixel value step-length
It can change, to improve the efficiency for dividing band.First preset quantity is the numerical value artificially set according to industry experience, to reduce
The number of target stripe, while ensureing the coding quality of original video frame image, which can also modify.
The pixel value of each pixel in obtained coding unit is ranked up by the present embodiment, then according to preset
Pixel value step-length divides band, saves the time for obtaining each band.
In order to accurately select target stripe, following at least one possible realization method may be used, obtain number threshold
Value：
In one possible implementation, P is artificially according to the preset numerical value of industry experience.
For example, setting coding unit size as wide and a height of M and N, then coding unit includes M*N pixel, it is assumed that default
Ratio value P is 0.5, M 10, N 35, number threshold value P=0.5 × 10 × 35=175.
Artificially according to the realization method of the preset number threshold value of industry experience, can save selection target band when
Between, improve the efficiency of Video coding.
In alternatively possible realization method, obtained as shown in figure 3, number threshold value can also calculate as follows
?：
S301, the value that the length of coding unit is multiplied with height, the total number of pixel is included as coding unit；
S302, the result that total number of the coding unit comprising pixel is multiplied with preset ratio value N is as number threshold value；
0<P<1。
The length of coding unit can be obtained into accurate number threshold value with the high and preset ratio value N modes being multiplied
Realization method can improve the accuracy rate of selection target band.
In conjunction with the embodiment of Fig. 1 and Fig. 2, in order to realize the efficiency for improving compensation target stripe, as shown in figure 4, another
In the possible realization method of kind, being compensated to the pixel value of each pixel in target stripe can be as follows：
S401 is calculated each in each target stripe by the pixel value of primitive frame image compared with the pixel value after reconstruct
The error amount of pixel；
In order to realize the efficiency for improving compensation target stripe, above-mentioned S401 will be after the pixel value of primitive frame image and reconstruct
Pixel value compares, and calculates the error amount of each pixel in each target stripe：
Using absolute error calculation formula, the pixel value for calculating the primitive frame image of same pixel and the pixel after reconstruct
Difference between value, by the error amount of each pixel in each target stripe of the difference of the pixel.
S402, for each target stripe, by the average value of the error amount of each pixel in target stripe, as target
The average error value of band；
The average error value of target stripe is determined as the corresponding biasing of target stripe by S403 for each target stripe
Value；
S404, for each target stripe, by the pixel value of pixel in target stripe, biasing corresponding with target stripe
Value is added, and is compensated to the pixel value of each pixel in target stripe.
Such as：Target stripe [64,71], [80,87] average error value be respectively：- 2,7, then by target stripe [64,
71], [80,87] corresponding bias is respectively -2,7.The pixel value of target stripe [64,71] each pixel is added into the mesh
The corresponding bias -2 of band is marked, then the target stripe after compensating is [62,69].By target stripe [80,87] each pixel
The pixel value of point adds the corresponding bias 7 of the target stripe, then the target stripe after compensating is [87,94].
The present embodiment obtains target stripe by the error amount of the pixel value of each pixel in each target stripe of calculating
Average error value, be determined as the corresponding bias of target stripe, improve the accuracy of the corresponding bias of target stripe, carry
Accuracy of the height to the pixel compensation value of each pixel in target stripe.
In conjunction with the embodiment of Fig. 1, Fig. 2 and Fig. 4, the efficiency of Video coding in order to better improve, after S102, this hair
A kind of optional realization method that bright embodiment provides, the method further include：Target stripe after compensation is encoded.
In order to save the time encoded to the target stripe after compensation, a kind of at least following possible reality can be passed through
Existing mode encodes the target stripe after compensation：
It in one possible implementation, can be according to minimum pixel value in the target stripe after compensation by the present embodiment
Sequence, the target stripe after selecting continuous second preset quantity to compensate encoded.
Such as：Target stripe after compensation be respectively [65,72], [82,89], [107,114], [120,127], [130,
137], the second preset quantity is 4, according to the minimum pixel value of the target stripe after compensation from greatly to small sequence, selection compensation
Target stripe [130,137] afterwards, [120,127], [107,114], [82,89] are encoded.Alternatively, according to the mesh after compensation
The minimum pixel value of band is marked from as low as big sequence, target stripe [65,72], [82,89] after selection compensation, [107,
114], [120,127] are encoded.
According to the sequence of minimum pixel value in the target stripe after compensation, the target stripe of continuous second preset quantity is selected
The realization method encoded can save the time encoded to the target stripe after compensation, improve the effect of Video coding
Rate.
In alternatively possible realization method, target stripe that can be optionally after the compensation of continuous second preset quantity into
Row coding.
Such as：To the target stripe after compensation be respectively [65,72], [82,89], [107,114], [120,127],
[130,137], the second preset quantity be 4, optionally it is continuous 4 compensation after target stripe [82,89], [107,114], [120,
127], [130,137] are encoded.
The realization method that target stripe after optionally continuous second preset quantity compensation is encoded, can save selection
To the time of the target stripe after compensation, the efficiency to the target stripe coding after compensation is improved.
In the third possible realization method, as shown in figure 5, being encoded to the target stripe after compensation can also lead to
Cross following steps：
S501 selects average error value to repay value complement according to the mean error of each target stripe after having been compensated
Target stripe afterwards is as initial target band；
For the time for saving to the target stripe coding after compensation, each target stripe after compensation can be calculated in advance
Then mean error of the average error value as each target stripe after having been compensated selects average error value absolute value most
Small, the target stripe after compensation is as initial target band.
S502 carries out each target stripe after compensation according to minimum pixel value in each target stripe after compensation
Sequence；
In order to save the time of selection target encoding strip thereof, following at least one possible realization may be used in above-mentioned S502
Each target stripe after compensation is ranked up by mode according to minimum pixel value in each target stripe after compensation：
In one possible implementation, bubble sort may be used, selected and sorted, insertion sort Shell sorting, return
And sort, quicksort, heapsort, count sort, bucket sort or radix sorting, any method that can be ranked up are pressed
According to minimum pixel value in each target stripe after compensation, each target stripe after compensation is ranked up.
According to minimum pixel value in each target stripe after compensation, from big to small by each target stripe after compensation
Sort the realization method being ranked up, and the time is saved to select target code band.
In alternatively possible realization method, it may be used using bubble sort, selected and sorted, insertion sort Xi Er rows
Sequence, merger sequence, quicksort, heapsort, count sort, bucket sort or radix sorting, any side that can be ranked up
Method carries out sequence from small to large to the pixel value of each pixel in obtained coding unit.
According to minimum pixel value in each target stripe after compensation, each target stripe after compensation is ranked up
Realization method can save the time of Video coding.
S503 selects second according to the sequence after each target stripe sequence after compensation since initial target band
Target stripe after preset quantity compensation is as target code band；Target code band includes initial target band；
In order to save the time of selection target encoding strip thereof, the efficiency of Video coding is improved, above-mentioned S503 may be used
Following at least one possible realization method, according to the sequence after each target stripe sequence after compensation, from initial target item
Band starts, and the target stripe after selecting the second preset quantity to compensate is as target code band：
In one possible implementation, according to the sequence after each target stripe sequence after compensation, each is given
Serial number is arranged in each target stripe after compensation, and since the serial number of initial target band, continuous preset quantity serial number will
Continuously the corresponding target stripe of preset quantity serial number is as target code band.
Such as：Second preset quantity is 4, each target stripe after compensation be respectively [65,72], [149,156],
[107,114], [82,89], [120,127], [130,137], each target stripe minimum pixel value after compensation is respectively
65,149,107,82,120,130, according to minimum pixel value in each target stripe after compensation, by each target after compensation
Band is ranked up, according to the sequence after each target stripe sequence after compensation, then to each mesh after each compensation
It marks band and serial number is set：1：[65,72], 2：[82,89], 3：[107,114], 4：[120,127], 5：[130,137], 6：
[149,156]；The mean error of each target stripe after having been compensated is respectively：-2,7,1,9,-4,6.After wherein compensating
Target stripe [107,114] average error value absolute value it is minimum, by target stripe 3：[107,114] it is used as initial target
Band, selects the continuous preset quantity serial number to be respectively：3,4,5,6, by the mesh after serial number 3,4,5,6 corresponding compensation
Mark band：3：[107,114], 4：[120,127], 5：[130,137], 6：[149,156] it is used as target code band.
In alternatively possible realization method, pass through the mean error of each target stripe after having been compensated, choosing
Select initial target band, to each target stripe after compensation, according to minimum pixel value in each target stripe after compensation into
Row sequence selects the second present count according to the sequence after each target stripe sequence after compensation since initial target band
Target stripe after amount compensation is as target code band.
S504 encodes target code band.
In order to realize that following at least one possible realization side may be used in the efficiency for improving Video coding, above-mentioned S504
Formula encodes target code band：
In one possible implementation, according to the numeric order of target code band, target code band is carried out
Coding.
In alternatively possible realization method, according to the minimum pixel value sequence of target code band, to target code
Band is encoded.
It continues with and a kind of compensation device of Video coding provided in an embodiment of the present invention is briefly described.
As shown in fig. 6, a kind of compensation device of Video coding provided in an embodiment of the present invention, including：
Determining module 601 is more than number threshold value in acquired each band, selecting the pixel number for including
Band, be determined as target stripe；Acquired each band is determined by the pixel value of each pixel in coding unit
's；
Compensating module 602 is compensated for the pixel value to each pixel in target stripe.
Optionally, determining module further includes：
Sorting subunit, for the pixel value of each pixel in obtained coding unit to be ranked up；
Target subelement, for according to preset pixel value step-length, the pixel value of each pixel after sequence to be divided
For the acquired band of the first preset quantity.
Optionally, compensating module includes：
Error calculation subelement, for compared with the pixel value after reconstruct, calculating each the pixel value of primitive frame image
The error amount of each pixel in target stripe；
Error determination subelement, for being directed to each target stripe, by the error amount of each pixel in target stripe
Average value, the average error value as target stripe；
Computation subunit is biased, for being directed to each target stripe, the average error value of target stripe is determined as target
The corresponding bias of band；
Subelement is compensated, for being directed to each target stripe, by the pixel value of pixel in target stripe, with target stripe
Corresponding bias is added, and is compensated to the pixel value of each pixel in target stripe.
Optionally, a kind of compensation device of Video coding provided in an embodiment of the present invention further includes：
Coding module, for being encoded to the target stripe after compensation.
Optionally, coding module includes：
Subelement is originated, according to the mean error of each target stripe after having been compensated, selects average error value most
Target stripe after small compensation is as initial target band；
Sorting subunit, according to minimum pixel value in each target stripe after compensation, by each target item after compensation
Band is ranked up；
Subelement is selected, according to the clooating sequence of each target stripe after compensation, headed by initial target band, selection
Target stripe after the compensation of second preset quantity is as target code band；Target code band includes initial target band；
Coded sub-units encode target code band.
Optionally, determining module further includes：
Pixel subelement, the value for the length of coding unit to be multiplied with height include the total of pixel as coding unit
Number；
Threshold value subelement, the result for total number of the coding unit comprising pixel to be multiplied with preset ratio value P are made
For number threshold value；0<P<1.
The embodiment of the present invention additionally provides a kind of electronic equipment, as shown in fig. 7, comprises processor 701, communication interface 702,
Memory 703 and communication bus 704, wherein processor 701, communication interface 702, memory 703 are complete by communication bus 704
At mutual communication,
Memory 703, for storing computer program；
Processor 701 when for executing the program stored on memory 703, realizes following steps：
In acquired each band, it is more than the band of number threshold value to select the pixel number for including, and is determined as mesh
Mark band；Acquired each band is determined by the pixel value of each pixel in coding unit；To in target stripe
The pixel value of each pixel compensates.
The communication bus that above-mentioned electronic equipment is mentioned can be Peripheral Component Interconnect standard (Peripheral Component
Interconnect, abbreviation PCI) bus or expanding the industrial standard structure (Extended Industry Standard
Architecture, abbreviation EISA) bus etc..The communication bus can be divided into address bus, data/address bus, controlling bus etc..
For ease of indicating, only indicated with a thick line in figure, it is not intended that an only bus or a type of bus.
Communication interface is for the communication between above-mentioned electronic equipment and other equipment.
Memory may include random access memory (Random Access Memory, abbreviation RAM), can also include
Nonvolatile memory (non-volatile memory), for example, at least a magnetic disk storage.Optionally, memory may be used also
To be at least one storage device for being located remotely from aforementioned processor.
Above-mentioned processor can be general processor, including central processing unit (Central Processing Unit,
Abbreviation CPU), network processing unit (Network Processor, abbreviation NP) etc.；It can also be digital signal processor
(Digital Signal Processing, abbreviation DSP), application-specific integrated circuit (Application Specific
Integrated Circuit, abbreviation ASIC), field programmable gate array (Field-Programmable Gate Array,
Abbreviation FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components.
In another embodiment provided by the invention, a kind of computer readable storage medium is additionally provided, which can
It reads to be stored with instruction in storage medium, when run on a computer so that computer executes any institute in above-described embodiment
The compensation method for the Video coding stated.
In another embodiment provided by the invention, a kind of computer program product including instruction is additionally provided, when it
When running on computers so that computer executes the compensation method of any Video coding in above-described embodiment.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or its arbitrary combination real
It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.The computer program
Product includes one or more computer instructions.When loading on computers and executing the computer program instructions, all or
It partly generates according to the flow or function described in the embodiment of the present invention.The computer can be all-purpose computer, special meter
Calculation machine, computer network or other programmable devices.The computer instruction can be stored in computer readable storage medium
In, or from a computer readable storage medium to the transmission of another computer readable storage medium, for example, the computer
Instruction can pass through wired (such as coaxial cable, optical fiber, number from a web-site, computer, server or data center
User's line (DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another web-site, computer, server or
Data center is transmitted.The computer readable storage medium can be any usable medium that computer can access or
It is comprising data storage devices such as one or more usable mediums integrated server, data centers.The usable medium can be with
It is magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state disk
Solid State Disk (SSD)) etc..
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, identical similar portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.Especially for device reality
For applying example, since it is substantially similar to the method embodiment, so description is fairly simple, related place is referring to embodiment of the method
Part explanation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (13)
1. a kind of compensation method of Video coding, which is characterized in that the method includes：
In acquired each band, it is more than the band of number threshold value to select the pixel number for including, and is determined as target item
Band；Acquired each band is determined by the pixel value of each pixel in coding unit；
The pixel value of each pixel in the target stripe is compensated.
2. according to the method described in claim 1, it is characterized in that, using following steps, described acquired each is determined
Band：
The pixel value of each pixel in obtained coding unit is ranked up；
According to preset pixel value step-length, the pixel value of each pixel after sequence is divided into the first preset quantity and has been obtained
The band obtained.
3. according to the method described in claim 1, it is characterized in that, the pixel to each pixel in the target stripe
Value compensate including：
By the pixel value of primitive frame image compared with the pixel value after reconstruct, the mistake of each pixel in each target stripe is calculated
Difference；
For each target stripe, by the average value of the error amount of each pixel in target stripe, as the flat of target stripe
Equal error amount；
For each target stripe, the average error value of target stripe is determined as the corresponding bias of target stripe；
For each target stripe, by the pixel value of pixel in target stripe, bias phase corresponding with the target stripe
Add, the pixel value of each pixel in the target stripe is compensated.
4. according to the method described in claim 1, it is characterized in that, it is described to the target stripe in each pixel picture
After plain value compensates, the method further includes：
Target stripe after compensation is encoded.
5. according to the method described in claim 4, it is characterized in that, described pair compensation after target stripe carry out coding include：
According to the mean error of each target stripe after having been compensated, the target after the compensation of average error value minimum is selected
Band is as initial target band；
According to minimum pixel value in each target stripe after compensation, each target stripe after compensation is ranked up；
According to the sequence after each target stripe sequence after compensation, since the initial target band, second is selected to preset
Target stripe after quantity compensation is as target code band；The target code band includes initial target band；
The target code band is encoded.
6. according to the method described in claim 1, it is characterized in that, using following steps, number threshold value is calculated：
The value that the length of coding unit is multiplied with height, the total number of pixel is included as the coding unit；
The result that total number of the coding unit comprising pixel is multiplied with preset ratio value P is as number threshold value；0<P<
1。
7. a kind of compensation device of Video coding, which is characterized in that described device includes：
Determining module is more than the band of number threshold value in acquired each band, selecting the pixel number for including,
It is determined as target stripe；Acquired each band is determined by the pixel value of each pixel in coding unit；
Compensating module is compensated for the pixel value to each pixel in the target stripe.
8. device according to claim 7, which is characterized in that the determining module further includes：
Sorting subunit, for the pixel value of each pixel in obtained coding unit to be ranked up；
The pixel value of each pixel after sequence is divided into for according to preset pixel value step-length by target subelement
The acquired band of one preset quantity.
9. the method according to the description of claim 7 is characterized in that the compensating module includes：
Error calculation subelement, for the pixel value of primitive frame image compared with the pixel value after reconstruct, to be calculated each target
The error amount of each pixel in band；
The error amount of each pixel in target stripe is averaged by error determination subelement for being directed to each target stripe
Value, the average error value as target stripe；
Computation subunit is biased, for being directed to each target stripe, the average error value of target stripe is determined as target stripe
Corresponding bias；
Subelement is compensated, for being directed to each target stripe, by the pixel value of pixel in target stripe, with the target stripe
Corresponding bias is added, and is compensated to the pixel value of each pixel in the target stripe.
10. device according to claim 7, which is characterized in that described device further includes：
Coding module, for being encoded to the target stripe after compensation.
11. device according to claim 10, which is characterized in that the coding module includes：
Subelement is originated, according to the mean error of each target stripe after having been compensated, selects average error value minimum
Target stripe after compensation is as initial target band；
Sorting subunit, according to minimum pixel value in each target stripe after compensation, by each target stripe after compensation into
Row sequence；
Subelement is selected, according to the sequence after each target stripe sequence after compensation, since the initial target band, choosing
The target stripe after the compensation of the second preset quantity is selected as target code band；The target code band includes initial target
Band；
Coded sub-units encode the target code band.
12. device according to claim 7, which is characterized in that the determining module further includes：
Pixel subelement, the value for the length of coding unit to be multiplied with height include the total of pixel as the coding unit
Number；
Threshold value subelement, the result for total number of the coding unit comprising pixel to be multiplied with preset ratio value P are made
For number threshold value；0<P<1.
13. a kind of electronic equipment, which is characterized in that including processor, communication interface, memory and communication bus, wherein processing
Device, communication interface, memory complete mutual communication by communication bus；
Memory, for storing computer program；
Processor when for executing the program stored on memory, realizes any method and steps of claim 1-6.
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