IN2015DN01842A - - Google Patents

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Publication number
IN2015DN01842A
IN2015DN01842A IN1842DEN2015A IN2015DN01842A IN 2015DN01842 A IN2015DN01842 A IN 2015DN01842A IN 1842DEN2015 A IN1842DEN2015 A IN 1842DEN2015A IN 2015DN01842 A IN2015DN01842 A IN 2015DN01842A
Authority
IN
India
Prior art keywords
methods
transform
transform coefficients
skipped
hevc
Prior art date
Application number
Inventor
Jacob Ström
Kenneth Andersson
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of IN2015DN01842A publication Critical patent/IN2015DN01842A/en

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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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform 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
    • H04N19/13—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
    • H04N19/10—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
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • 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
    • H04N19/17—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
    • 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
    • H04N19/20—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding
    • H04N19/21—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding with binary alpha-plane coding for video objects, e.g. context-based arithmetic encoding [CAE]
    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/547—Motion estimation performed in a transform domain
    • 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
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • 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
    • H04N19/65—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using error resilience
    • 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
    • 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]

Abstract

Video encoder and decoder and methods therein for transform skipped encoding and decoding of blocks of pixels. The methods comprises a modified use of an existing context model associated with transform coefficients for deriving contexts for a bitmask indicating which residual values (i.e. not transform coefficients) in a transform skipped residual block that are greater than one. The methods are applicable to video coding schemes such as HEVC.
IN1842DEN2015 2012-10-01 2013-09-30 IN2015DN01842A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261708212P 2012-10-01 2012-10-01
PCT/EP2013/070311 WO2014053428A1 (en) 2012-10-01 2013-09-30 Coding and decoding of transform skipped blocks

Publications (1)

Publication Number Publication Date
IN2015DN01842A true IN2015DN01842A (en) 2015-05-29

Family

ID=49263317

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1842DEN2015 IN2015DN01842A (en) 2012-10-01 2013-09-30

Country Status (4)

Country Link
US (2) US9591315B2 (en)
EP (1) EP2904781B1 (en)
IN (1) IN2015DN01842A (en)
WO (1) WO2014053428A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015106747A (en) * 2013-11-28 2015-06-08 富士通株式会社 Dynamic image encoding device, dynamic image encoding method and dynamic image encoding computer program
EP4336833A2 (en) * 2016-05-13 2024-03-13 Sony Group Corporation Image processing device and method
CN110999293B (en) * 2017-07-31 2022-11-04 韩国电子通信研究院 Image encoding/decoding method and apparatus, and recording medium storing bit stream
CN116600141A (en) * 2018-03-27 2023-08-15 株式会社Kt Method for decoding or encoding image and method for transmitting image data
EP3777156A1 (en) * 2018-03-29 2021-02-17 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. Transform coefficient block coding
US10645396B2 (en) * 2018-06-04 2020-05-05 Tencent America LLC Method and apparatus for implicit transform splitting
KR20210062010A (en) * 2018-09-21 2021-05-28 인터디지털 브이씨 홀딩스 인코포레이티드 A method of determining a scalar quantizer for dependent scalar quantization
US11006150B2 (en) 2018-09-24 2021-05-11 Tencent America LLC Method and apparatus for video coding
CN112806017B (en) 2018-10-05 2024-03-15 Tcl王牌电器(惠州)有限公司 Method and apparatus for encoding transform coefficients
WO2020172668A1 (en) * 2019-02-24 2020-08-27 Tencent America LLC Improved residual coding for transform skip mode and block differential pulse-code modulation
US11202100B2 (en) * 2019-03-11 2021-12-14 Qualcomm Incorporated Coefficient coding for transform skip mode
US11303898B2 (en) * 2019-04-03 2022-04-12 Mediatek Inc. Coding transform coefficients with throughput constraints
WO2021170058A1 (en) * 2020-02-27 2021-09-02 Beijing Bytedance Network Technology Co., Ltd. Transform skip residual coding
CA3214574A1 (en) * 2021-04-12 2022-10-20 Fan Wang Coefficient encoding/decoding method, encoder, decoder, and computer storage medium
US11876990B2 (en) * 2021-07-13 2024-01-16 Mediatek Inc. Video residual decoding apparatus using storage device to store side information and/or state information for syntax element decoding optimization and associated method

Also Published As

Publication number Publication date
WO2014053428A1 (en) 2014-04-10
US20150281706A1 (en) 2015-10-01
US20170134751A1 (en) 2017-05-11
EP2904781A1 (en) 2015-08-12
US9591315B2 (en) 2017-03-07
EP2904781B1 (en) 2019-03-20
US9794591B2 (en) 2017-10-17

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