CN102595128B - Codeword space reduction for intra chroma mode signaling for HEVC - Google Patents
Codeword space reduction for intra chroma mode signaling for HEVC Download PDFInfo
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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
- H04N19/10—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
- H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
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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
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
- H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
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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
- H04N19/46—Embedding additional information in the video signal during the compression process
- H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
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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
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
Abstract
The present invention discloses codeword space reduction for intra chroma mode signaling for HEVC. Intra prediction is used in existing video coding standards such as AVC. The intra prediction modes are coded into the bitstream. Luma and chroma components could potentially have different prediction modes. For chroma components, there are 7 different modes defined in AVC: vertical, horizontal, DC, diagonal down right, and 'same as luma'. Statistics show that the 'same as luma' mode is frequently used, but in AVC, this mode is encoded using more bits than other modes during entropy coding, therefore the coding efficiency is decreased. Accordingly, a modified binarization/codeword assignment for chroma intra mode signaling is able to be utilized for high efficiency video coding (HEVC), the next generation video coding standard.
Description
the cross reference of related application
The application is the title submitted on March 1st, 2011 is the co-pending U.S. Patent application No.13/038 of " CODEWORD SPACE REDUCTION FOR INTRA CHROMA MODE SIGNALING FOR HEVC ", the partial continuous case (this partial continuous case is incorporated into this by reference) of 129, and according to 35U.S.C. § 119 (e), the application requires that the title submitted on January 14th, 2011 is the U.S. Provisional Patent Application No.61/432 of " CODEWORD SPACE REDUCTION FOR INTRA CHROMA MODE SIGNALING FOR HEVC ", 957 (this provisional application is incorporated into this by reference) and in the title submitted on January 14th, 2011 be the U.S. Provisional Patent Application No.61/432 of " CODEWORD ASSIGNMENT FOR INTRA CHROMA MODE SIGNALING FOR HEVC ", the priority of 970 (this provisional application is incorporated into this by reference).The application also requires that the title submitted on March 1st, 2011 is the U.S. Provisional Patent Application No.61/448 of " CODEWORD SPACE REDUCTION FOR INTRA CHROMA MODE SIGNALING FOR HEVC ", the priority of 031, this temporary patent application is incorporated into this by reference.
Technical field
The present invention relates to image processing field.More specifically, the present invention relates to the code assignment (codeword assignment) of the amendment of chroma mode (intra chroma mode) signaling in the frame for efficient video coding (HEVC).
Background technology
Standard dyadic/variable length code (VLC) codeword assignment scheme used in advanced video coding (AVC) is shown in Table 1.In AVC, the predictive mode for Intra-coded blocks is informed decoder by with signaling method in the bitstream.Possible prediction mode for chroma/direction is vertical, level, DC, diagonal sum " the same with brightness (same as luma) ".These patterns are assigned with the code word from 0 to 4 separately, and use in the bitstream and do not carried out signaling by the unary code of brachymemma.
| intra_pred_mode_chroma | Dualization/VLC code word |
| 0 (vertically) | 0 |
| 1 (level) | 10 |
| 2(DC) | 110 |
| 3 (lower-right diagonal position) | 1110 |
| 4 (the same with brightness) | 1111 |
Table 1 is for the intra prediction mode of chromatic component
Statistical research display chromatic component uses the possibility in the same sample predictions direction very high with the luminance component of block.But " the same with brightness " pattern is assigned with code word (4 bit) the longest in table 1, and this is not efficient.On the other hand, when luma prediction modes be vertical, level, DC and lower-right diagonal position for the moment, between pattern 4 and pattern 0 ~ 3, also there is redundancy.Therefore, need better to design codeword table.
Summary of the invention
Infra-frame prediction is used in the existing video encoding standard of such as AVC and so on.Intra prediction mode is encoded in bit stream.Brightness and chromatic component likely have different predictive modes.For chromatic component, in AVC, define 7 different modes: vertical, level, DC, to angular direction and " the same with brightness ".Statistics display " the same with brightness " pattern is frequently used, but in AVC, this pattern uses during entropy code is encoded than the more bit of other pattern, therefore, and code efficiency reduction.Correspondingly, the dualization/code assignment for the amendment of chrominance frames internal schema signaling may be used for efficient video coding (HEVC), video encoding standard of future generation.
In an aspect, a kind of method be programmed in the controller of equipment comprises: programme to code assignment; Judge whether " the same with brightness " pattern equals another pattern; If " the same with brightness " pattern equals another pattern, then reconfiguring described code assignment, comprising the code assignment of the pattern by equaling " the same from brightness " pattern to different patterns; And use amended code assignment to perform intraframe coding.Described different pattern is the pattern be not assigned with.Described code assignment comprises 7 patterns, comprises vertical, level, DC, VER-8, VER-4, " the same with brightness " and extra pattern.Described extra pattern selects from the group be made up of VER+8, VER+4 and HOR+8.The code word of " the same with brightness " pattern comprises bit minimum in the pattern be assigned with.Described intraframe coding is used to decode to image.Described code assignment is programmed in the memory of described equipment.Described code assignment comprises programmes to hardware logic.Described equipment selects from the group be made up of following equipment: personal computer, laptop computer, computer workstation, server, mainframe computer, handheld computer, personal digital assistant, honeycomb/mobile phone, intelligent appliance, game console, digital camera, Digital Video, camera phone,
/ iPhone/iPad, video player, DVD burner/player,
cD writer/player, television set, home entertainment system.
In another aspect, a kind of device for realizing code assignment comprises: programming module, and described programming module is used for programming to code assignment; Comparison module, described comparison module is used for judging whether " the same with brightness " pattern equals another pattern; Reconfigure module, reconfiguring module described and equal another pattern for " if the same with brightness " pattern, reconfigure described code assignment, wherein reconfiguring the code assignment of the pattern comprised equaling " the same from brightness " pattern to different patterns; And intraframe coding module, described intraframe coding module is for selecting the pattern that is not assigned with as intra-frame encoding mode and with signaling method, described intra-frame encoding mode being informed to decoder.Described code assignment comprises 7 patterns, comprises vertical, level, DC, VER-8, VER-4, VER+4, " the same with brightness " and the extra pattern be not assigned with.The described pattern be not assigned with additionally selects from the group be made up of VER+8, VER+4 and HOR+8.The code word of " the same with brightness " pattern comprises bit minimum in the pattern be assigned with.Described intraframe coding is used to decode to image.Described code assignment is programmed in the memory of described equipment.Described code assignment comprises programmes to hardware logic.Described device selects from the group be made up of following equipment: personal computer, laptop computer, computer workstation, server, mainframe computer, handheld computer, personal digital assistant, honeycomb/mobile phone, intelligent appliance, game console, digital camera, Digital Video, camera phone,
/ iPhone/iPad, video player, DVD burner/player,
cD writer/player, television set, home entertainment system.
In one aspect of the method, a kind of device comprises: for storing the memory of application and being coupled to the processing components of described memory, described application is used for: to code assignment programming, described code assignment comprises vertically, level, DC, one or more to angular direction and " the same with brightness "; Judge that whether " the same with brightness " pattern is the same with another pattern, and if " the same with brightness " pattern is the same with another pattern, then reconfiguring described code assignment, comprising the code assignment of the pattern by equaling " the same from brightness " pattern to different patterns; Be selected as intra-frame encoding mode with the pattern allowing not to be assigned with and with signaling method, described intra-frame encoding mode informed to decoder; Described processing components is arranged to the described application of process.Described one or more at least three angular direction comprised in VER-8, VER-4, VER+4, VER+8 and HOR+8." the same with brightness " pattern comprises bit minimum in the pattern be assigned with.Described intraframe coding is used to decode to image.Described device selects from the group be made up of following equipment: personal computer, laptop computer, computer workstation, server, mainframe computer, handheld computer, personal digital assistant, honeycomb/mobile phone, intelligent appliance, game console, digital camera, Digital Video, camera phone,
/ iPhone/iPad, video player, DVD burner/player,
cD writer/player, television set, home entertainment system.
Accompanying drawing explanation
Fig. 1 illustrates the flow chart of the method for the intra-coding prediction of the code assignment revised according to the use of some embodiments.
Fig. 2 illustrates the flow chart of the method for the amendment code assignment according to some embodiments.
Fig. 3 illustrates the block diagram of the encoder/decoder (codec) according to some embodiments.
Fig. 4 illustrates the block diagram being configured to the example calculation equipment of the code assignment realizing amendment according to some embodiments.
Embodiment
Because the textured pattern of luminance component and chromatic component is relevant, usually, be effective for the pattern of luma prediction equally to colorimetric prediction.Therefore, " the same with brightness " pattern is probably optimal mode.Therefore, dualization/variable length code (VLC) scheme redefined is shown in table 2.As shown in the figure, in improvement project, " the same with brightness " pattern has most short code word (only 1 bit).In addition, some directions are added in table 2.7 fixing chroma intra prediction directions are shown.Only define code word for 6 directions in these 7 directions.In this example, extra direction is chosen to VER+8.When discovery mode is the same with brightness, the available codeword in list is used to encode to extra direction/pattern (such as direction index 6).
| Direction | Code word | |
| 0 | The same with brightness | 0 |
| 1 | VER | 10 |
| 2 | HOR | 1110 |
| 3 | DC | 1101 |
| 4 | VER-8 | 1111 |
| 5 | VER-4 | 1100 |
| 6 | VER-4 |
The expansion of table 2 direction and code word redefines list
In addition, chrominance frames internal schema is not mutually repel.Such as, if luminance frame internal schema is vertical, then " the same with brightness " is namely with vertical.Therefore, code word space distribution can be used to improve code efficiency further, if with make luminance patterns be vertical, level, DC, VER-8, VER-4 and VER+8 for the moment, corresponding pattern is removed by from chroma mode list, and correspondingly, extra pattern (such as, VER+8) can realize the code word do not used.Table 3 illustrates codeword list.
Table 3 uses the codeword list of Codeword space reduction
Table 4 illustrates another example of dualization/variable length code (VLC) scheme redefined.7 fixing chroma intra prediction directions are shown.Only define code word for 6 in 7 directions.When occurring the same with brightness, the available codeword in list is used to encode to extra direction (such as direction index 6).Such as, if VER+8 is the same with brightness, then 1111 the code word of HOR+8 can be used as.
| Direction | Code word | |
| 0 | The same with brightness | 0 |
| 1 | VER | 10 |
| 2 | HOR | 1110 |
| 3 | DC | 1101 |
| 4 | VER-8 | 1111 |
| 5 | VER+8 | 1100 |
| 6 | HOR+8 |
The expansion of table 4 direction and code word redefines list
Table 5 illustrates the complete list of the code word in the direction of use table 4.Code word space distribution can be used to improve code efficiency further, if be one in vertical, level, DC, VER-8, VER+8 or VER+8 to make luminance patterns, then associative mode is removed by from chroma mode list, and correspondingly, extra pattern (such as HOR+8) can realize the code word do not used.Table 5 illustrates the list of code word.
Table 5 uses the list of the code word of Codeword space reduction
Fig. 1 illustrates the flow chart of the method for the intra-coding prediction according to the amended code assignment of the use of some embodiments.In step 100, amended code assignment is programmed.In certain embodiments, programming comprises by this memory allocated in memory.In certain embodiments, programming comprises the hardware being designed for and realizing distributing.In certain embodiments, another programmed method is implemented.(above) table 2 with table 4 illustrate wherein " the same with brightness " code word use the amended code assignment of least bits.In a step 102, by allowing the pattern be not assigned be selected as intra prediction mode and informed decoder by with signaling method subsequently, amended code assignment is used to perform intra-coding prediction (such as, determining directional prediction modes).In certain embodiments, less or other step can be realized.
Fig. 2 illustrates the flow chart of the method for the amendment code assignment according to some embodiments.In step 200, amended code assignment is programmed.In certain embodiments, programming comprises by this memory allocated in memory.In certain embodiments, programming comprises the hardware being designed for and realizing distributing.In certain embodiments, another programmed method is implemented.In step 202., whether the mode value judging " the same with brightness " is identical with in pattern code word.If the mode value of " the same with brightness " is not identical with in pattern code word, then code assignment is not revised further, and process proceeds to step 206.If one in the mode value of " the same with brightness " and pattern code word identical, then in step 204, in certain embodiments, some or all of all the other pattern code words are reconfigured and code assignment is modified.Such as, code word is as above reconfigured shown in table 3 or 5 like that.In certain embodiments, extra pattern code word is used to extra direction/pattern (HOR+8 such as, in table 5).In certain embodiments, the pattern code word as the pattern of pattern the same as brightness is used to extra direction.In step 206, be selected as intra prediction mode and informed decoder by with signaling method subsequently by allowing the pattern be not assigned with, amended code assignment is used to perform intra-coding prediction (such as, determining directional prediction modes).The step of amendment code assignment can be repeated as required.In certain embodiments, less or other step is implemented.Such as, in certain embodiments, step 200 is skipped or is moved.
Fig. 3 illustrates the block diagram of the encoder/decoder (codec) according to some embodiments.Input video is received at codec 300 place, and video is divided into multiple pieces.Codec 300 comprises encoder component, and these encoder components comprise: transform/quantization module 302, wherein conversion coefficient scaled and quantize; Entropy coder 304, it is such as context-adaptive dualization arithmetic encoder (CABAC), and it performs entropy code; Inverse transformation/quantization modules 306, it applies inverse transformation/quantification; De-blocking filter 308, it is implemented as the filter intensity of wave controlled for reducing the pixelation (pixelation) of image; Auto-adaptive loop filter 310, it is by improving code efficiency to the image applications filtering carrying out block elimination filtering; And fallout predictor 312, it performs prediction steps.Codec 300 also comprises decoder component, decoder component comprises: for realizing entropy decoder 314, the second inverse transformation/quantization modules 316, second de-blocking filter 318, second auto-adaptive loop filter 320 and the second fallout predictor 322 that entropy is decoded, second inverse transformation/quantization modules 316, second de-blocking filter 318, second auto-adaptive loop filter 320 and the second fallout predictor 322 perform similar operation with those above-mentioned modules, and difference is that they are decoding implementations.In fallout predictor 312, amended code assignment is implemented to provide more efficiently intra-mode prediction.Less or other assembly can also be comprised.
Fig. 4 illustrates the block diagram being configured to realize the example calculation equipment 400 of amended code assignment according to some embodiments.Computing equipment 400 can be used to the information obtaining, store, calculate, process, transmit and/or show such as image, Audio and Video and so on.Such as, computing equipment 400 can obtain and memory image.Amended code assignment or can be used during acquisition image afterwards, or is used when showing image on device 400.Generally, the hardware configuration being suitable for realizing computing equipment 400 comprises network interface 402, memory 404, processor 406, (one or more) I/O equipment 408, bus 410 and memory device 412.The selection of processor is not vital, as long as select the suitable processor with enough speed.Memory 404 can be any traditional computer storage well known in the prior art.Memory device 412 can comprise hard drives, CDROM, CDRW, DVD, DVDRW, flash card or other memory device any.Computing equipment 400 can comprise one or more network interface 402.The example of network interface comprises the network interface card of the LAN being connected to Ethernet or other type.(one or more) I/O equipment 408 can comprise following in one or more: keyboard, mouse, monitor, display, printer, modulator-demodulator, touch-screen, push-button interface and miscellaneous equipment.In certain embodiments, hardware configuration comprises multiple processor with other hardware to perform parallel processing.(one or more) for realizing amended grammer amended code assignment application 430 to be probably stored in memory device 412 and memory 404 and usually processed processed like that with application.Assembly shown in more or less Fig. 4 can be included in computing equipment 400.In certain embodiments, amended code assignment hardware 420 is comprised.Although the computing equipment 400 in Fig. 4 comprises application 430 for realizing amended code assignment and hardware 420, amended code assignment can be implemented on the computing device with hardware, firmware, software or their any combination.Such as, in certain embodiments, amended code assignment application 430 is programmed in memory and makes purpose processor to run.In another example, in certain embodiments, amended code assignment hardware 420 is the programming hardware logics comprising the gate circuit be specifically designed for realizing the method.
In certain embodiments, (one or more) amended code assignment application 430 comprises some application and/or module.Module comprise for amended code assignment of programming programming module, for by allow the pattern be not assigned with to be selected as intra prediction mode and subsequently by informed with signaling method decoder use amended code assignment perform intra-coding prediction intra-coding prediction module, for judging whether " the same with brightness " mode value equals the comparison module of one of pattern code word, and reconfigure module for what reconfigure code assignment.In certain embodiments, module also comprises one or more submodule.In certain embodiments, less or other module can also be comprised.
The example of suitable computing equipment comprise personal computer, laptop computer, computer workstation, server, mainframe computer, handheld computer, personal digital assistant, honeycomb/mobile phone, intelligent appliance, game console, digital camera, Digital Video, camera phone,
/ iPhone/iPad, video player, DVD burner/player,
cD writer/player, television set, home entertainment system or other suitable computing equipment any.
In order to utilize amended code assignment, user obtains the video/image in such as Digital Video, and while video is acquired or afterwards, or when display video, amended code assignment is used to the intra-coding prediction aspect of encoding to video.Amended code assignment can be automatically implemented when not having user to participate in.
In operation, amended code assignment can realize more effective prediction.Simple amended code assignment can be used in " the same with brightness " to be had in the situation of most short code word, or slightly complicated code assignment can be used in code assignment according to " the same with brightness " pattern whether with one of other pattern and in situation about changing.In addition, in certain embodiments, one or more extra pattern may be used for by which pattern be the same with brightness based on code assignment.In certain embodiments, luma prediction is examined at encoder, decoder place or the two place.
For some embodiments of the code assignment of chroma mode signaling in the frame of HEVC
1. be programmed in the method in the controller of equipment, comprise:
A. code assignment is programmed;
B. judge whether " the same with brightness " pattern equals another pattern;
If c. " the same with brightness " pattern equals another pattern, then reconfiguring described code assignment, comprising the code assignment of the pattern by equaling " the same from brightness " pattern to different patterns; And
D. use amended code assignment to perform intraframe coding.
2. the method as described in clause 1, wherein, described different pattern is the pattern be not assigned with.
3. the method as described in clause 1, wherein, described code assignment comprises 7 patterns, comprises vertical, level, DC, VER-8, VER-4, " the same with brightness " and extra pattern.
4. the method as described in clause 3, wherein, described extra pattern selects from the group be made up of VER+8, VER+4 and HOR+8.
5. the method as described in clause 1, wherein, the code word of " the same with brightness " pattern comprises bit minimum in the pattern be assigned with.
6. the method as described in clause 1, wherein, described intraframe coding is used to decode to image.
7. the method as described in clause 1, wherein, described code assignment is programmed in the memory of described equipment.
8. the method as described in clause 1, wherein, described code assignment comprises programmes to hardware logic.
9. the method as described in clause 1, wherein, described equipment selects from the group be made up of following equipment: personal computer, laptop computer, computer workstation, server, mainframe computer, handheld computer, personal digital assistant, honeycomb/mobile phone, intelligent appliance, game console, digital camera, Digital Video, camera phone,
/ iPhone/iPad, video player, DVD burner/player,
cD writer/player, television set, home entertainment system.
10., for realizing a device for code assignment, comprising:
A. programming module, described programming module is used for programming to code assignment;
B. comparison module, described comparison module is used for judging whether " the same with brightness " pattern equals another pattern;
C. module is reconfigured, reconfiguring module described and equal another pattern for " if the same with brightness " pattern, reconfigure described code assignment, wherein reconfiguring the code assignment of the pattern comprised equaling " the same from brightness " pattern to different patterns; And
D. intraframe coding module, described intraframe coding module is for selecting the pattern that is not assigned with as intra-frame encoding mode and with signaling method, described intra-frame encoding mode being informed to decoder.
11. devices as described in clause 10, wherein, described code assignment comprises 7 patterns, comprises vertical, level, DC, VER-8, VER-4, VER+4, " the same with brightness " and the extra pattern be not assigned with.
12. devices as described in clause 11, wherein, the described pattern be not assigned with additionally selects from the group be made up of VER+8, VER+4 and HOR+8.
13. devices as described in clause 10, wherein, the code word of " the same with brightness " pattern comprises bit minimum in the pattern be assigned with.
14. devices as described in clause 10, wherein, described intraframe coding is used to decode to image.
15. devices as described in clause 10, wherein, described code assignment is programmed in the memory of described equipment.
16. devices as described in clause 10, wherein, described code assignment comprises programmes to hardware logic.
17. devices as described in clause 10, wherein, described device selects from the group be made up of following equipment: personal computer, laptop computer, computer workstation, server, mainframe computer, handheld computer, personal digital assistant, honeycomb/mobile phone, intelligent appliance, game console, digital camera, Digital Video, camera phone,
/ iPhone/iPad, video player, DVD burner/player,
cD writer/player, television set, home entertainment system.
18. 1 kinds of devices, comprising:
A. memory, described memory is for storing application, and described application is used for:
I. to code assignment programming, described code assignment comprises vertically, level, DC, one or more to angular direction and " the same with brightness ";
Ii. judge that whether " the same with brightness " pattern is the same with another pattern, and if " the same with brightness " pattern is the same with another pattern, then reconfiguring described code assignment, comprising the code assignment of the pattern by equaling " the same from brightness " pattern to different patterns; With
Iii. allow the pattern be not assigned with to be selected as intra-frame encoding mode and with signaling method, described intra-frame encoding mode informed to decoder; And
B. processing components, described processing components is coupled to described memory, and described processing components is arranged to the described application of process.
19. devices as described in clause 18, wherein, described one or more at least three angular direction comprised in VER-8, VER-4, VER+4, VER+8 and HOR+8.
20. devices as described in clause 18, wherein, " the same with brightness " pattern comprises bit minimum in the pattern be assigned with.
21. devices as described in clause 18, wherein, described intraframe coding is used to decode to image.
22. devices as described in clause 18, wherein, described device selects from the group be made up of following equipment: personal computer, laptop computer, computer workstation, server, mainframe computer, handheld computer, personal digital assistant, honeycomb/mobile phone, intelligent appliance, game console, digital camera, Digital Video, camera phone,
/ iPhone/iPad, video player, DVD burner/player,
cD writer/player, television set, home entertainment system.
In view of the specific embodiment of the details combined for helping the principle understanding formation of the present invention and operation describes this law.Like this reference of its details is not intended to limit by scope at this appended claims to specific embodiment.It will be apparent to one skilled in the art that can carry out various other to the embodiment selected to illustrate when not departing from the spirit and scope of the present invention be defined by the claims revises.
Claims (22)
1. be programmed in the method in the controller of equipment, comprise:
A. to code assignment programming, described code assignment comprises multiple chroma intra prediction modes, and described multiple chroma intra prediction modes comprises " the same with brightness " pattern and other pattern;
B. judge whether " the same with brightness " pattern equals another pattern in described multiple chroma intra prediction modes;
If c. " the same with brightness " pattern equals another pattern described, then reconfiguring described code assignment, comprising the code assignment of another pattern described by equaling " the same from brightness " pattern to patterns different with another pattern described with described " the same with brightness " pattern in described multiple chroma intra prediction modes; And
D. use amended code assignment to perform intraframe coding.
2. the method for claim 1, wherein described different pattern is the pattern be not assigned with.
3. the method for claim 1, wherein described code assignment comprises 7 patterns, comprises vertical, level, DC, VER-8, VER-4, " the same with brightness " and extra pattern.
4. method as claimed in claim 3, wherein, described extra pattern selects from the group be made up of VER+8, VER+4 and HOR+8.
5. the method for claim 1, wherein the code word of " the same with brightness " pattern comprises bit minimum in the pattern be assigned with.
6. the method for claim 1, wherein described intraframe coding is used to decode to image.
7. the method for claim 1, wherein described code assignment is programmed in the memory of described equipment.
8. the method for claim 1, wherein described code assignment comprises and programming to hardware logic.
9. the method for claim 1, wherein, described equipment selects from the group be made up of following equipment: personal computer, laptop computer, computer workstation, server, mainframe computer, handheld computer, personal digital assistant, honeycomb/mobile phone, intelligent appliance, game console, digital camera, Digital Video, camera phone,
video player, DVD burner/player,
cD writer/player, television set, home entertainment system.
10., for realizing a device for code assignment, comprising:
A. programming module, described programming module is used for code assignment programming, and wherein, described code assignment comprises multiple chroma intra prediction modes, and described multiple chroma intra prediction modes comprises " the same with brightness " and other pattern;
B. comparison module, described comparison module is used for judging whether " the same with brightness " pattern equals another pattern in described multiple chroma intra prediction modes;
C. module is reconfigured, reconfiguring module described and equal another pattern described for " if the same with brightness " pattern, reconfigure described code assignment, wherein reconfiguring the code assignment of another pattern described comprised equaling " the same from brightness " pattern to patterns different with another pattern described with described " the same with brightness " pattern in described multiple chroma intra prediction modes; And
D. intraframe coding module, described intraframe coding module is for selecting the pattern that is not assigned with as intra-frame encoding mode and with signaling method, described intra-frame encoding mode being informed to decoder.
11. devices as claimed in claim 10, wherein, described code assignment comprises 7 patterns, comprises vertical, level, DC, VER-8, VER-4, VER+4, " the same with brightness " and the extra pattern be not assigned with.
12. devices as claimed in claim 11, wherein, the described pattern be not assigned with additionally selects from the group be made up of VER+8, VER+4 and HOR+8.
13. devices as claimed in claim 10, wherein, the code word of " the same with brightness " pattern comprises bit minimum in the pattern be assigned with.
14. devices as claimed in claim 10, wherein, described intraframe coding is used to decode to image.
15. devices as claimed in claim 10, wherein, described code assignment is programmed in the memory of described device.
16. devices as claimed in claim 10, wherein, described code assignment comprises programmes to hardware logic.
17. devices as claimed in claim 10, wherein, described device selects from the group be made up of following equipment: personal computer, laptop computer, computer workstation, server, mainframe computer, handheld computer, personal digital assistant, honeycomb/mobile phone, intelligent appliance, game console, digital camera, Digital Video, camera phone,
video player, DVD burner/player,
cD writer/player, television set, home entertainment system.
18. 1 kinds, for realizing the device of code assignment, comprising:
A. memory, described memory is for storing application, and described application is used for:
I. to code assignment programming, described code assignment comprises following multiple chroma intra prediction modes: vertical, level, DC, one or more to angular direction and " the same with brightness ";
Ii. judge that whether " the same with brightness " pattern is the same with another pattern in described multiple chroma intra prediction modes, and if " the same with brightness " pattern is the same with another pattern described, then reconfiguring described code assignment, comprising the code assignment of another pattern described by equaling " the same from brightness " pattern to patterns different with another pattern described with described " the same with brightness " pattern in described multiple chroma intra prediction modes; With
Iii. allow the pattern be not assigned with to be selected as intra-frame encoding mode and with signaling method, described intra-frame encoding mode informed to decoder; And
B. processing components, described processing components is coupled to described memory, and described processing components is arranged to the described application of process.
19. devices as claimed in claim 18, wherein, described one or more at least three angular direction comprised in VER-8, VER-4, VER+4, VER+8 and HOR+8.
20. devices as claimed in claim 18, wherein, " the same with brightness " pattern comprises bit minimum in the pattern be assigned with.
21. devices as claimed in claim 18, wherein, described intraframe coding is used to decode to image.
22. devices as claimed in claim 18, wherein, described device selects from the group be made up of following equipment: personal computer, laptop computer, computer workstation, server, mainframe computer, handheld computer, personal digital assistant, honeycomb/mobile phone, intelligent appliance, game console, digital camera, Digital Video, camera phone,
video player, DVD burner/player,
cD writer/player, television set, home entertainment system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711312112.0A CN107888923B (en) | 2011-01-14 | 2011-12-29 | Method and apparatus for implementing codeword allocation |
| CN201410645055.8A CN104320662B (en) | 2011-01-14 | 2011-12-29 | Codeword space reduction for HEVC frame in chroma mode signaling |
| CN201510221546.4A CN104935925B (en) | 2011-01-14 | 2011-12-29 | Codeword space reduction for chroma mode signaling in the frame of HEVC |
| CN201410643685.1A CN104363453B (en) | 2011-01-14 | 2011-12-29 | For the Codeword space reduction of the frame in chroma mode signaling of HEVC |
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| US201161432970P | 2011-01-14 | 2011-01-14 | |
| US201161432957P | 2011-01-14 | 2011-01-14 | |
| US61/432,957 | 2011-01-14 | ||
| US61/432,970 | 2011-01-14 | ||
| US201161448031P | 2011-03-01 | 2011-03-01 | |
| US61/448,031 | 2011-03-01 | ||
| US13/038,129 | 2011-03-01 | ||
| US13/038,129 US10080016B2 (en) | 2011-01-14 | 2011-03-01 | Codeword space reduction for intra chroma mode signaling for HEVC |
| US13/227,732 | 2011-09-08 | ||
| US13/227,732 US9232227B2 (en) | 2011-01-14 | 2011-09-08 | Codeword space reduction for intra chroma mode signaling for HEVC |
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| CN201711312112.0A Division CN107888923B (en) | 2011-01-14 | 2011-12-29 | Method and apparatus for implementing codeword allocation |
| CN201410645055.8A Division CN104320662B (en) | 2011-01-14 | 2011-12-29 | Codeword space reduction for HEVC frame in chroma mode signaling |
| CN201510221546.4A Division CN104935925B (en) | 2011-01-14 | 2011-12-29 | Codeword space reduction for chroma mode signaling in the frame of HEVC |
| CN201410643685.1A Division CN104363453B (en) | 2011-01-14 | 2011-12-29 | For the Codeword space reduction of the frame in chroma mode signaling of HEVC |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1784015A (en) * | 2004-12-02 | 2006-06-07 | 中国科学院计算技术研究所 | Inage predicting encoding method in frame |
| CN1812582A (en) * | 2005-01-25 | 2006-08-02 | 中国科学院计算技术研究所 | Frame image brightness predictive coding method |
Family Cites Families (2)
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| US7646815B2 (en) * | 2003-07-15 | 2010-01-12 | Lsi Corporation | Intra estimation chroma mode 0 sub-block dependent prediction |
| KR101291196B1 (en) * | 2008-01-25 | 2013-07-31 | 삼성전자주식회사 | Video encoding method and apparatus, and video decoding method and apparatus |
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| CN1784015A (en) * | 2004-12-02 | 2006-06-07 | 中国科学院计算技术研究所 | Inage predicting encoding method in frame |
| CN1812582A (en) * | 2005-01-25 | 2006-08-02 | 中国科学院计算技术研究所 | Frame image brightness predictive coding method |
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