CA2854830C - Number of contexts reduction for context adaptive binary arithmetic coding - Google Patents
Number of contexts reduction for context adaptive binary arithmetic coding Download PDFInfo
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- CA2854830C CA2854830C CA2854830A CA2854830A CA2854830C CA 2854830 C CA2854830 C CA 2854830C CA 2854830 A CA2854830 A CA 2854830A CA 2854830 A CA2854830 A CA 2854830A CA 2854830 C CA2854830 C CA 2854830C
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
- H03M7/4006—Conversion to or from arithmetic code
- H03M7/4012—Binary arithmetic codes
- H03M7/4018—Context adapative binary arithmetic codes [CABAC]
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- H—ELECTRICITY
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- 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
- H04N19/103—Selection of coding mode or of prediction mode
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- 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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- 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
- H04N19/136—Incoming video signal characteristics or properties
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- H—ELECTRICITY
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- 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
- H04N19/17—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 an image region, e.g. an object
- H04N19/174—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 an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks
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- H—ELECTRICITY
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- 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
- H04N19/17—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 an image region, e.g. an object
- H04N19/176—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 an image region, e.g. an object the region being a block, e.g. a macroblock
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- H—ELECTRICITY
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- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
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- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
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- H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
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Landscapes
- Engineering & Computer Science (AREA)
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- Signal Processing (AREA)
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Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161557325P | 2011-11-08 | 2011-11-08 | |
| US61/557,325 | 2011-11-08 | ||
| US201161561911P | 2011-11-20 | 2011-11-20 | |
| US61/561,911 | 2011-11-20 | ||
| US13/645,308 US9451287B2 (en) | 2011-11-08 | 2012-10-04 | Context reduction for context adaptive binary arithmetic coding |
| US13/645,308 | 2012-10-04 | ||
| PCT/US2012/059095 WO2013070354A1 (en) | 2011-11-08 | 2012-10-05 | Number of contexts reduction for context adaptive binary arithmetic coding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2854830A1 CA2854830A1 (en) | 2013-05-16 |
| CA2854830C true CA2854830C (en) | 2017-02-21 |
Family
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
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| CA2854814A Active CA2854814C (en) | 2011-11-08 | 2012-10-05 | Context reduction for context adaptive binary arithmetic coding |
| CA2854822A Active CA2854822C (en) | 2011-11-08 | 2012-10-05 | Number of context reduction for context adaptive binary arithmetic coding |
| CA2854830A Active CA2854830C (en) | 2011-11-08 | 2012-10-05 | Number of contexts reduction for context adaptive binary arithmetic coding |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
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| CA2854814A Active CA2854814C (en) | 2011-11-08 | 2012-10-05 | Context reduction for context adaptive binary arithmetic coding |
| CA2854822A Active CA2854822C (en) | 2011-11-08 | 2012-10-05 | Number of context reduction for context adaptive binary arithmetic coding |
Country Status (21)
| Country | Link |
|---|---|
| US (5) | US9237358B2 (en:Method) |
| EP (4) | EP2777162B1 (en:Method) |
| JP (3) | JP5847957B2 (en:Method) |
| KR (3) | KR101633200B1 (en:Method) |
| CN (3) | CN104040900B (en:Method) |
| AU (3) | AU2012336234B2 (en:Method) |
| BR (3) | BR112014011063B1 (en:Method) |
| CA (3) | CA2854814C (en:Method) |
| DK (2) | DK2777162T3 (en:Method) |
| ES (4) | ES2549145T3 (en:Method) |
| HU (2) | HUE026070T2 (en:Method) |
| IL (7) | IL232288A (en:Method) |
| IN (3) | IN2014CN03460A (en:Method) |
| MY (4) | MY189724A (en:Method) |
| PH (3) | PH12014501005B1 (en:Method) |
| PL (3) | PL2777162T3 (en:Method) |
| PT (2) | PT2777160E (en:Method) |
| RU (1) | RU2602380C2 (en:Method) |
| SG (3) | SG11201401687XA (en:Method) |
| WO (3) | WO2013070354A1 (en:Method) |
| ZA (2) | ZA201404182B (en:Method) |
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| US11647197B2 (en) | 2011-06-30 | 2023-05-09 | Velos Media, Llc | Context initialization based on slice header flag and slice type |
| AU2012309008A1 (en) | 2011-09-16 | 2013-11-07 | Mediatek Singapore Pte. Ltd. | Method and apparatus for prediction mode and partition mode syntax coding for coding units in HEVC |
| EP2763415B1 (en) | 2011-09-29 | 2020-04-15 | Sharp Kabushiki Kaisha | Image decoding apparatus for decoding partition information, image decoding method and image encoding apparatus |
| CN108650508B (zh) | 2011-09-29 | 2022-07-29 | 夏普株式会社 | 图像解码装置、图像解码方法、图像编码装置及图像编码方法 |
| CN108391128A (zh) * | 2011-11-08 | 2018-08-10 | 三星电子株式会社 | 用于对视频进行解码的设备 |
| US9237358B2 (en) | 2011-11-08 | 2016-01-12 | Qualcomm Incorporated | Context reduction for context adaptive binary arithmetic coding |
| WO2013106987A1 (en) * | 2012-01-16 | 2013-07-25 | Mediatek Singapore Pte. Ltd. | Methods and apparatuses of bypass coding and reducing contexts for some syntax elements |
| JP5997363B2 (ja) * | 2012-04-15 | 2016-09-28 | サムスン エレクトロニクス カンパニー リミテッド | ビデオ復号化方法及びビデオ復号化装置 |
| US10721487B2 (en) * | 2012-04-17 | 2020-07-21 | Texas Instruments Incorporated | Converting a bi-predicted merging candidate in a merging candidate list for a prediction unit of a picture |
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