JP7809108B2 - 動画像復号装置および動画像符号化装置 - Google Patents

動画像復号装置および動画像符号化装置

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Publication number
JP7809108B2
JP7809108B2 JP2023525432A JP2023525432A JP7809108B2 JP 7809108 B2 JP7809108 B2 JP 7809108B2 JP 2023525432 A JP2023525432 A JP 2023525432A JP 2023525432 A JP2023525432 A JP 2023525432A JP 7809108 B2 JP7809108 B2 JP 7809108B2
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Prior art keywords
prediction
unit
gpm
separable
transform
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JP2023525432A
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English (en)
Japanese (ja)
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JPWO2022254899A5 (https=
JPWO2022254899A1 (https=
Inventor
天洋 周
知宏 猪飼
友子 青野
知典 橋本
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Sharp Corp
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Sharp Corp
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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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • 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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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
    • 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
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • H04N19/649—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding the transform being applied to non rectangular image segments
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
JP2023525432A 2021-05-31 2022-03-24 動画像復号装置および動画像符号化装置 Active JP7809108B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021091071 2021-05-31
JP2021091071 2021-05-31
PCT/JP2022/013833 WO2022254899A1 (ja) 2021-05-31 2022-03-24 動画像復号装置および動画像符号化装置

Publications (3)

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JPWO2022254899A1 JPWO2022254899A1 (https=) 2022-12-08
JPWO2022254899A5 JPWO2022254899A5 (https=) 2025-03-18
JP7809108B2 true JP7809108B2 (ja) 2026-01-30

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Country Status (3)

Country Link
US (1) US12335528B2 (https=)
JP (1) JP7809108B2 (https=)
WO (1) WO2022254899A1 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2025014088A (ja) * 2021-12-14 2025-01-29 シャープ株式会社 動画像復号装置および動画像符号化装置
US12513332B2 (en) * 2022-07-05 2025-12-30 Qualcomm Incorporated Non-separable transform for inter-coded blocks
WO2025252126A1 (en) * 2024-06-04 2025-12-11 Douyin Vision Co., Ltd. Method, apparatus, and medium for video processing

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020510374A (ja) 2017-03-21 2020-04-02 エルジー エレクトロニクス インコーポレイティド 映像コーディングシステムにおける変換方法及びその装置
JP2020058025A (ja) 2018-09-28 2020-04-09 株式会社Ｊｖｃケンウッド 画像復号装置、画像復号方法、及び画像復号プログラム
JP2020137119A (ja) 2019-02-12 2020-08-31 日本放送協会 イントラ予測装置、画像符号化装置、画像復号装置、及びプログラム
US20210067776A1 (en) 2019-08-30 2021-03-04 Qualcomm Incorporated Geometric partition mode with harmonized motion field storage and motion compensation
WO2021061027A1 (en) 2019-09-25 2021-04-01 Huawei Technologies Co., Ltd. Harmonizing triangular merge mode with weighted prediction

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200344486A1 (en) * 2019-04-26 2020-10-29 Qualcomm Incorporated Size constraint for triangular prediction unit mode
US11272179B2 (en) * 2019-11-22 2022-03-08 FG Innovation Company Limited Device and method for coding video data

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
JP2020510374A (ja) 2017-03-21 2020-04-02 エルジー エレクトロニクス インコーポレイティド 映像コーディングシステムにおける変換方法及びその装置
JP2020058025A (ja) 2018-09-28 2020-04-09 株式会社Ｊｖｃケンウッド 画像復号装置、画像復号方法、及び画像復号プログラム
JP2020137119A (ja) 2019-02-12 2020-08-31 日本放送協会 イントラ予測装置、画像符号化装置、画像復号装置、及びプログラム
US20210067776A1 (en) 2019-08-30 2021-03-04 Qualcomm Incorporated Geometric partition mode with harmonized motion field storage and motion compensation
WO2021061027A1 (en) 2019-09-25 2021-04-01 Huawei Technologies Co., Ltd. Harmonizing triangular merge mode with weighted prediction

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
KOO, Moonmo , et al.，Description of SDR video coding technology proposal by LG Electronics，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，JVET-J0017-v1，2018年04月02日，pp.7-9
KOO, Moonmo, et al.，CE6: Reduced Secondary Transform (RST) (CE6-3.1)，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，JVET-N0193，2019年03月12日
LIAO, Ru-Ling, et al.，Non-CE4: Simplification of triangle partition and SBT combination，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，JVET-N0483-v1，2019年03月13日
Versatile video coding，Recommendation ITU-T H.266，08/2020，2020年08月，pp.69-73, 174-175, 256-257,327

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US20240251105A1 (en) 2024-07-25
WO2022254899A1 (ja) 2022-12-08
US12335528B2 (en) 2025-06-17
JPWO2022254899A1 (https=) 2022-12-08

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