WO2013106987A1 - Methods and apparatuses of bypass coding and reducing contexts for some syntax elements - Google Patents

Methods and apparatuses of bypass coding and reducing contexts for some syntax elements Download PDF

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Publication number
WO2013106987A1
WO2013106987A1 PCT/CN2012/070428 CN2012070428W WO2013106987A1 WO 2013106987 A1 WO2013106987 A1 WO 2013106987A1 CN 2012070428 W CN2012070428 W CN 2012070428W WO 2013106987 A1 WO2013106987 A1 WO 2013106987A1
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WO
WIPO (PCT)
Prior art keywords
binldx
equal
context
syntax element
bins
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Ceased
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PCT/CN2012/070428
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French (fr)
Inventor
Mei Guo
Xun Guo
Shaw-Min Lei
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MediaTek Singapore Pte Ltd
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MediaTek Singapore Pte Ltd
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Priority to PCT/CN2012/070428 priority Critical patent/WO2013106987A1/en
Priority to CN201280055607.9A priority patent/CN103931188B/en
Priority to DE112012005164.5T priority patent/DE112012005164B4/en
Priority to PCT/CN2012/086536 priority patent/WO2013107230A1/en
Priority to US14/371,437 priority patent/US10187661B2/en
Priority to GB1411198.3A priority patent/GB2512231B/en
Priority to JP2014531097A priority patent/JP5944510B2/en
Publication of WO2013106987A1 publication Critical patent/WO2013106987A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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]
    • 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • 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
    • H04N19/90—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
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
    • 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
    • H04N19/124—Quantisation

Definitions

  • the invention relates generally to video processing.
  • the present invention relates to methods and apparatuses for bypass coding and reducing contexts in High Efficiency Video Coding (HEVC).
  • HEVC High Efficiency Video Coding
  • HEVC High Efficiency Video Coding
  • JCT-VC Joint Collaborative Team on Video Coding
  • HM-5.0 HEVC test model version 5.0
  • merge_flag, merge_idx, ref_idx_lc, predjype, and cu qp delta are coded with contexts in CAB AC.
  • Merge flag that is equal to either 0 or 1 has only one bin and uses one context.
  • the bin strings of merge idx, ref idx lc, and pred type are shown in Table 1 , Table 2 and Table 3 respectively.
  • the contexts used for the bin string are also given in the above pseudo-code.
  • the first two bins of cu qp delta with binldx equal to 0 and 1 use two separate contexts for each bin, while other bins with binldx equal to or larger than 2 use one bin.
  • additional memory and complexity are required at both encoder and decoder.
  • Bin string of ref_idx_lc in HM5.0 Value Bin string of ref_idx_lc in HM5.0 Value
  • Fig. 1 is a diagram illustrating an exemplary method of reducing contexts for ref idx lc.
  • the syntax element merge flag is coded with bypass coding method. No context is required for that.
  • the bins with binldx equal to 1 , 2 and 3 share one context.
  • the bins with binldx equal to 2 and 3 share one context.
  • the bin with binldx equal to 3 is coded with bypass coding method. No context is required for that bin.
  • the bin with binldx equal to 2 is coded with bypass coding method. No context is required for that bin.
  • the bin with binldx equal to 1 is coded with bypass coding method. No context is required for that bin.
  • the bins with binldx equal to 1, 2 and 3 are coded with bypass coding method. No context is required for those bins.
  • the bins with binldx equal to 1 and 2 share one context, as shown in Fig. 1.
  • the bin with binldx equal to 2 is coded with bypass coding method. No context is required for those bins.
  • the bin with binldx equal to 1 is coded with bypass coding method. No context is required for those bins.
  • the bins with binldx equal to 1 and 2 are coded with bypass coding method. No context is required for those bins.
  • the bin with binldx equal to 4 is coded with bypass coding method. No context is required for that bin.
  • the bin with binldx equal to 3 is coded with bypass coding method. No context is required for that bin.
  • the bin with binldx equal to 2 is coded with bypass coding method. No context is required for that bin.
  • the bins with binldx equal to 4, 3, and 2 are coded with bypass coding method, as shown in Fig. 1. No context is required for those bins.
  • the bins with binldx equal to 4, 3, and 2 share one context.
  • the bins with binldx equal to 4 and 3 share one context.
  • the bins with binldx equal to 3 and 2 share one context.
  • the bins with binldx equal to or larger than 2 are coded with bypass coding method. No context is required for those bins.
  • the bin with binldx equal to 1 is coded with bypass coding method. No context is required for that bin.
  • the bin with binldx equal to 1 and the bins with binldx equal to or larger than 2 are coded with bypass coding method. No context is required for those bins.
  • the bin with binldx equal to 1 and the bins with binldx equal to or larger than 2 use one context.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Description

METHODS AND APPARATUSES OF BYPASS CODING AND REDUCING CONTEXTS FOR SOME SYNTAX
ELEMENTS
TECHNICAL FIELD
The invention relates generally to video processing. In particular, the present invention relates to methods and apparatuses for bypass coding and reducing contexts in High Efficiency Video Coding (HEVC).
BACKGROUND
HEVC (High Efficiency Video Coding) is an advanced video coding system being developed under the Joint Collaborative Team on Video Coding (JCT-VC) group of video coding experts from ITU-T Study Group. In HEVC test model version 5.0 (HM-5.0), the syntax elements merge_flag, merge_idx, ref_idx_lc, predjype, and cu qp delta are coded with contexts in CAB AC. Merge flag that is equal to either 0 or 1 has only one bin and uses one context. The bin strings of merge idx, ref idx lc, and pred type are shown in Table 1 , Table 2 and Table 3 respectively. For merge idx, pred type and ref idx lc, one context is used for one bin. If the maximum value of ref idx lc is larger than 3, the additive bins share the same context as the bin with binldx equal to 2. The bin string of cu qp delta is specified by a process equivalent to the following pseudo-code. The value of cu qp delta is denoted as synVal. absV = Abs( synVal )
if( absV = = 0 ){
put( 0 ) ■binldx = 0
} else {
put( 1 ) ■binldx = 0
signV = ( synVal > 0 ) ? 0 : 1
put( signV )
cMax = 24 + ( QpBdOffsetY » 1 ) + signV cNum = absV - 1
absVGreaterThanlFlag = ( absV
put( absVGreaterThanlFlag )
if( absVGreaterThanlFlag ){
while( cNum— )
put( 1 ) binldx = 2
if( cMax > absV - 1 )
put( 0 )
}
}
The contexts used for the bin string are also given in the above pseudo-code. The first two bins of cu qp delta with binldx equal to 0 and 1 use two separate contexts for each bin, while other bins with binldx equal to or larger than 2 use one bin. When using contexts, additional memory and complexity are required at both encoder and decoder.
Table 1. Bin string of merge_idx in HM5.0
Figure imgf000004_0001
Table 2. Bin string of ref_idx_lc in HM5.0 Value Bin string
0 0
1 1 0
2 1 1 0
3 1 1 1 binldx 0 1 2
Table 3. Bin string of pred_type for inter blocks in HM5.0
Figure imgf000005_0001
SUMMARY
In light of the previously described problems, there exists a need for an apparatus and method, in which the number of contexts is reduced or the bypass coding without using contexts is applied to some syntax elements. BRIEF DESCRIPTION OF DRAWINGS
The invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:
Fig. 1 is a diagram illustrating an exemplary method of reducing contexts for ref idx lc.
DETAILED DESCRIPTION
The following description is of the best-contemplated mode of carrying out the invention. This description is made for the purpose of illustrating the general principles of the invention and should not be taken in a limiting sense. The scope of the invention is best determined by reference to the appended claims.
In the first embodiment, the syntax element merge flag is coded with bypass coding method. No context is required for that.
In the second embodiment, as for the syntax element merge idx, the bins with binldx equal to 1 , 2 and 3 share one context.
In the third embodiment, as for the syntax element merge idx, the bins with binldx equal to 2 and 3 share one context.
In the fourth embodiment, as for the syntax element merge idx, the bin with binldx equal to 3 is coded with bypass coding method. No context is required for that bin.
In the fifth embodiment, as for the syntax element merge idx, the bin with binldx equal to 2 is coded with bypass coding method. No context is required for that bin.
In the sixth embodiment, as for the syntax element merge idx, the bin with binldx equal to 1 is coded with bypass coding method. No context is required for that bin.
In the seventh embodiment, as for the syntax element merge idx, the bins with binldx equal to 1, 2 and 3 are coded with bypass coding method. No context is required for those bins.
In the eighth embodiment, as for the syntax element ref idx lc, the bins with binldx equal to 1 and 2 share one context, as shown in Fig. 1.
In the ninth embodiment, as for the syntax element ref idx lc, the bin with binldx equal to 2 is coded with bypass coding method. No context is required for those bins.
In the tenth embodiment, as for the syntax element ref idx lc, the bin with binldx equal to 1 is coded with bypass coding method. No context is required for those bins.
In the eleventh embodiment, as for the syntax element ref idx ld, the bins with binldx equal to 1 and 2 are coded with bypass coding method. No context is required for those bins.
In the twelfth embodiment, as for the syntax element pred type, the bin with binldx equal to 4 is coded with bypass coding method. No context is required for that bin.
In the thirteenth embodiment, as for the syntax element pred type, the bin with binldx equal to 3 is coded with bypass coding method. No context is required for that bin.
In the forteenth embodiment, as for the syntax element pred type, the bin with binldx equal to 2 is coded with bypass coding method. No context is required for that bin.
In the fifteenth embodiment, as for the syntax element pred type, the bins with binldx equal to 4, 3, and 2 are coded with bypass coding method, as shown in Fig. 1. No context is required for those bins.
In the sixteenth embodiment, as for the syntax element pred type, the bins with binldx equal to 4, 3, and 2 share one context.
In the seventeenth embodiment, as for the syntax element pred type, the bins with binldx equal to 4 and 3 share one context.
In the eighteenth embodiment, as for the syntax element pred type, the bins with binldx equal to 3 and 2 share one context.
In the nineteenth embodiment, as for the syntax element cu qp delta, the bins with binldx equal to or larger than 2 are coded with bypass coding method. No context is required for those bins.
In the twentieth embodiment, as for the syntax element cu qp delta, the bin with binldx equal to 1 is coded with bypass coding method. No context is required for that bin. In the twenty-first embodiment, as for the syntax element cu qp delta, the bin with binldx equal to 1 and the bins with binldx equal to or larger than 2 are coded with bypass coding method. No context is required for those bins.
In the twenty-second embodiment, as for the syntax element cu qp delta, the bin with binldx equal to 1 and the bins with binldx equal to or larger than 2 use one context.

Claims

1. A method of entropy coding method of syntax elements merge flag, merge idx, ref idx lc, pred type, and cu qp delta in video coding , comprising: coding a plurality of bins of one syntax element with one context ; and coding at least one bin of one syntax element with a bypass coding method.
2. The method as claimed in claim 1, wherein the syntax element merge flag is coded with the bypass coding method and context is not needed.
3. The method as claimed in claim 1, wherein the bins with binldx equal to 1, 2 and 3 of syntax element merge idx shares one context.
4. The method as claimed in claim 1, wherein the bins with binldx equal to 2 and 3 of syntax element merge idx shares one context.
5. The method as claimed in claim 1, wherein the bin with binldx equal to 3 of syntax element merge idx is coded with the bypass coding method and context is not needed.
6. The method as claimed in claim 1, wherein the bin with binldx equal to 2 of syntax element merge idx is coded with the bypass coding method and context is not needed.
7. The method as claimed in claim 1, wherein the bin with binldx equal to 1 of syntax element merge idx is coded with the bypass coding method and context is not needed.
8. The method as claimed in claim 1, wherein the bins with binldx equal to 1, 2 and 3 of syntax element merge idx are coded with the bypass coding method and context is not needed.
9. The method as claimed in claim 1, wherein the bins with binldx equal to 1, and 2 of syntax element ref idx lc shares one context.
10. The method as claimed in claim 1, wherein the bin with binldx equal to 1 of syntax element ref idx lc is coded with the bypass coding method and context is not needed.
11. The method as claimed in claim 1 , wherein the bin with binldx equal to 2 of syntax element ref idx lc is coded with the bypass coding method and context is not needed.
12. The method as claimed in claim 1 , wherein the bins with binldx equal to 1 and 2 of syntax element ref idx lc are coded with the bypass coding method and context is not needed.
13. The method as claimed in claim 1, wherein the bin with binldx equal to 4 of syntax element pred type is coded with the bypass coding method and context is not needed.
14. The method as claimed in claim 1, wherein the bin with binldx equal to 3 of syntax element pred type is coded with the bypass coding method and context is not needed.
15. The method as claimed in claim 1, wherein the bin with binldx equal to 2 of syntax element pred type is coded with the bypass coding method and context is not needed.
16. The method as claimed in claim 1, wherein the bins with binldx equal to 4, 3 and 2 of syntax element pred type are coded with the bypass coding method and context is not needed.
17. The method as claimed in claim 1, wherein the bins with binldx equal to 4, 3 and 2 of syntax element pred type shares one context.
18. The method as claimed in claim 1 , wherein the bins with binldx equal to 3 and 2 of syntax element pred type are coded with the bypass coding method and context is not needed.
19. The method as claimed in claim 1 , wherein the bins with binldx equal to 4 and 3 of syntax element pred type are coded with the bypass coding method and context is not needed.
20. The method as claimed in claim 1, wherein the bins with binldx equal to or larger than 2 of the syntax element cu qp delta are coded with the bypass coding method, and no context is required for the bins.
21. The method as claimed in claim 1, wherein the bin with binldx equal to 1 of the syntax element cu qp delta is coded with the bypass coding method, and no context is required for the bin.
22. The method as claimed in claim 1, wherein the bins with binldx equal to 1 and the bins with binldx equal to or larger than 2 of the syntax element cu qp delta are coded with the bypass coding method, and no context is required for the bins.
23. The method as claimed in claim 1, wherein the bins with binldx equal to 1 and the bins with binldx equal to or larger than 2 of the syntax element cu qp delta uses one context.
PCT/CN2012/070428 2012-01-16 2012-01-16 Methods and apparatuses of bypass coding and reducing contexts for some syntax elements Ceased WO2013106987A1 (en)

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Application Number Priority Date Filing Date Title
PCT/CN2012/070428 WO2013106987A1 (en) 2012-01-16 2012-01-16 Methods and apparatuses of bypass coding and reducing contexts for some syntax elements
CN201280055607.9A CN103931188B (en) 2012-01-16 2012-12-13 Apparatus and method for context-based adaptive binary arithmetic coding of syntax elements
DE112012005164.5T DE112012005164B4 (en) 2012-01-16 2012-12-13 Method and apparatus for context-adaptive binary arithmetic coding of syntax elements
PCT/CN2012/086536 WO2013107230A1 (en) 2012-01-16 2012-12-13 Method and apparatus for context-adaptive binary arithmetic coding of syntax elements
US14/371,437 US10187661B2 (en) 2012-01-16 2012-12-13 Method and apparatus for context adaptive binary arithmetic coding of syntax elements
GB1411198.3A GB2512231B (en) 2012-01-16 2012-12-13 Method and apparatus for context-adaptive binary arithmetic coding of syntax elements
JP2014531097A JP5944510B2 (en) 2012-01-16 2012-12-13 Context-Adaptive Binary Arithmetic Coding Method and Apparatus for Syntax Element Context-Adaptive Binary Arithmetic Coding

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170155909A1 (en) * 2012-04-13 2017-06-01 Texas Instruments Incorporated Reducing Context Coded and Bypass Coded Bins to Improve Context Adaptive Binary Arithmetic Coding (CABAC) Throughput
CN112135149A (en) * 2019-06-24 2020-12-25 华为技术有限公司 Entropy coding/decoding method and device of syntax element and codec

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2950818C (en) * 2014-06-20 2020-12-22 Hfi Innovation Inc. Method and apparatus of binarization and context-adaptive coding for syntax in video coding
US9942551B2 (en) * 2015-01-30 2018-04-10 Qualcomm Incorporated Palette index grouping for video coding
US11233998B2 (en) 2015-05-29 2022-01-25 Qualcomm Incorporated Coding data using an enhanced context-adaptive binary arithmetic coding (CABAC) design
KR102766403B1 (en) 2017-01-25 2025-02-12 삼성전자주식회사 Entropy encoder and video encoder including the same
CN119520780A (en) 2018-07-02 2025-02-25 交互数字Vc控股公司 Method and apparatus for context-based binary arithmetic coding and decoding
KR20240049658A (en) * 2018-10-09 2024-04-16 삼성전자주식회사 A method and an apparatus for video decoding, a method and an apparatus for video encoding
WO2020084510A1 (en) * 2018-10-23 2020-04-30 Beijing Bytedance Network Technology Co., Ltd. Adaptive control point selection for affine coding
CN109413487A (en) * 2018-11-07 2019-03-01 成都索贝数码科技股份有限公司 A method of spelling is dodged after storing fragment transcoding/synthetic video file based on object
GB2580084B (en) * 2018-12-20 2022-12-28 Canon Kk Video coding and decoding
WO2020185500A1 (en) 2019-03-11 2020-09-17 Interdigital Vc Holdings, Inc. Entropy coding for video encoding and decoding
WO2021058593A1 (en) * 2019-09-24 2021-04-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Coding concept for a sequence of information values
WO2023168257A2 (en) * 2022-03-01 2023-09-07 Innopeak Technology, Inc. State transition of dependent quantization for aom enhanced compression model
US12581092B2 (en) 2022-03-03 2026-03-17 Qualcomm Incorporated Temporal initialization points for context-based arithmetic coding
CN116582669B (en) * 2023-06-05 2026-04-14 湖南国科微电子股份有限公司 Binary arithmetic coding structure, binary arithmetic coding device, binary arithmetic coding method, and storage medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070040711A1 (en) * 2005-08-22 2007-02-22 Streaming Networks (Pvt.) Ltd. Method and system for fast context based adaptive binary arithmetic coding
CN101076114A (en) * 2007-06-15 2007-11-21 上海富瀚微电子有限公司 Self-adaptive context binary arithmetic encoder and encoding method
US20090141803A1 (en) * 2004-01-30 2009-06-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Video frame encoding and decoding
CN101562455A (en) * 2008-04-18 2009-10-21 瑞昱半导体股份有限公司 Content-adaptive binary arithmetic coding decoding device and decoding method thereof

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008118146A1 (en) 2007-03-23 2008-10-02 Thomson Licensing Modifying a coded bitstream
US8542727B2 (en) * 2007-12-31 2013-09-24 Intel Corporation Systems and apparatuses for performing CABAC parallel encoding and decoding
US8294603B2 (en) 2009-06-30 2012-10-23 Massachusetts Institute Of Technology System and method for providing high throughput entropy coding using syntax element partitioning
KR101108674B1 (en) * 2009-12-30 2012-01-25 숭실대학교산학협력단 Entropy coding performance improvement method and video coding method and apparatus using the method
CN101771879B (en) * 2010-01-28 2011-08-17 清华大学 Parallel normalized coding realization circuit based on CABAC and coding method
HUE037656T2 (en) * 2010-04-13 2018-09-28 Fraunhofer Ges Forschung Probability interval partioning encoder and decoder
US9591320B2 (en) * 2010-07-15 2017-03-07 Texas Instruments Incorporated Context and bypass encoding video
CN101951516B (en) 2010-09-25 2013-06-05 清华大学 Parallel encoding realization circuit and encoding method based on CABAC (Context-based Adaptive Binary Arithmetic Coding) in H.264/AVC (Advanced Video Coding)
US10123053B2 (en) * 2011-05-23 2018-11-06 Texas Instruments Incorporated Acceleration of bypass binary symbol processing in video coding
CN107529709B (en) * 2011-06-16 2019-05-07 Ge视频压缩有限责任公司 Decoder, encoder, method of decoding and encoding video, and storage medium
CN102256125B (en) * 2011-07-14 2013-06-05 北京工业大学 Context adaptive arithmetic coding method for HEVC (High Efficiency Video Coding)
BR112013003521B1 (en) * 2011-07-18 2022-03-03 Sun Patent Trust Image encoding method, image decoding method, image encoding apparatus, image decoding apparatus and image encoding and decoding apparatus
CN108471535A (en) * 2011-11-08 2018-08-31 三星电子株式会社 Method for being decoded to video
US9237358B2 (en) * 2011-11-08 2016-01-12 Qualcomm Incorporated Context reduction for context adaptive binary arithmetic coding
US20130170553A1 (en) * 2012-01-04 2013-07-04 Qualcomm Incorporated Coding motion vector difference
US9503717B2 (en) * 2012-01-09 2016-11-22 Texas Instruments Incorporated Context adaptive binary arithmetic coding (CABAC) with scalable throughput and coding efficiency
WO2013116849A1 (en) * 2012-02-04 2013-08-08 General Instrument Corporation Devices and methods for context reduction in last significant coefficient position coding

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090141803A1 (en) * 2004-01-30 2009-06-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Video frame encoding and decoding
US20070040711A1 (en) * 2005-08-22 2007-02-22 Streaming Networks (Pvt.) Ltd. Method and system for fast context based adaptive binary arithmetic coding
CN101076114A (en) * 2007-06-15 2007-11-21 上海富瀚微电子有限公司 Self-adaptive context binary arithmetic encoder and encoding method
CN101562455A (en) * 2008-04-18 2009-10-21 瑞昱半导体股份有限公司 Content-adaptive binary arithmetic coding decoding device and decoding method thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170155909A1 (en) * 2012-04-13 2017-06-01 Texas Instruments Incorporated Reducing Context Coded and Bypass Coded Bins to Improve Context Adaptive Binary Arithmetic Coding (CABAC) Throughput
US10321131B2 (en) * 2012-04-13 2019-06-11 Texas Instruments Incorporated Reducing context coded and bypass coded bins to improve context adaptive binary arithmetic coding (CABAC) throughput
US10798384B2 (en) 2012-04-13 2020-10-06 Texas Instruments Incorporated Reducing context coded and bypass coded bins to improve context adaptive binary arithmetic coding (CABAC) throughput
US11076155B2 (en) 2012-04-13 2021-07-27 Texas Instruments Incorporated Reducing context coded and bypass coded bins to improve context adaptive binary arithmetic coding (CABAC) throughput
US11375197B2 (en) 2012-04-13 2022-06-28 Texas Instruments Incorporated Reducing context coded and bypass coded bins to improve context adaptive binary arithmetic coding (CABAC) throughput
US11652997B2 (en) 2012-04-13 2023-05-16 Texas Instruments Incorporated Reducing context coded and bypass coded bins to improve context adaptive binary arithmetic coding (CABAC) throughput
US11825093B2 (en) 2012-04-13 2023-11-21 Texas Instruments Incorporated Reducing context coded and bypass coded bins to improve context adaptive binary arithmetic coding (CABAC) throughput
US11956435B2 (en) 2012-04-13 2024-04-09 Texas Instruments Incorporated Reducing context coded and bypass coded bins to improve context adaptive binary arithmetic coding (CABAC) throughput
US12294708B2 (en) 2012-04-13 2025-05-06 Texas Instruments Incorporated Reducing context coded and bypass coded bins to improve context adaptive binary arithmetic coding (CABAC) throughput
US20250373806A1 (en) * 2012-04-13 2025-12-04 Texas Instruments Incorporated Video content delivery methods
US12574517B2 (en) * 2012-04-13 2026-03-10 Texas Instruments Incorporated Video content delivery methods
CN112135149A (en) * 2019-06-24 2020-12-25 华为技术有限公司 Entropy coding/decoding method and device of syntax element and codec

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