JP7402016B2 - 画像復号装置及び画像符号化装置 - Google Patents

画像復号装置及び画像符号化装置 Download PDF

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JP7402016B2
JP7402016B2 JP2019201150A JP2019201150A JP7402016B2 JP 7402016 B2 JP7402016 B2 JP 7402016B2 JP 2019201150 A JP2019201150 A JP 2019201150A JP 2019201150 A JP2019201150 A JP 2019201150A JP 7402016 B2 JP7402016 B2 JP 7402016B2
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unit
scaling
transform
encoding
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JP2021077946A5 (enExample
JP2021077946A (ja
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知典 橋本
知宏 猪飼
友子 青野
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to JP2019201150A priority Critical patent/JP7402016B2/ja
Priority to US17/087,654 priority patent/US11128891B2/en
Publication of JP2021077946A publication Critical patent/JP2021077946A/ja
Priority to US17/402,952 priority patent/US11770559B2/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
    • H04N19/124—Quantisation
    • 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
    • H04N19/169—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
    • H04N19/10—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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  • 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)
JP2019201150A 2019-11-06 2019-11-06 画像復号装置及び画像符号化装置 Active JP7402016B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2019201150A JP7402016B2 (ja) 2019-11-06 2019-11-06 画像復号装置及び画像符号化装置
US17/087,654 US11128891B2 (en) 2019-11-06 2020-11-03 Image decoding apparatus and image coding apparatus
US17/402,952 US11770559B2 (en) 2019-11-06 2021-08-16 Image decoding apparatus and image coding apparatus for scaling transform coefficient

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Application Number Priority Date Filing Date Title
JP2019201150A JP7402016B2 (ja) 2019-11-06 2019-11-06 画像復号装置及び画像符号化装置

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JP2021077946A JP2021077946A (ja) 2021-05-20
JP2021077946A5 JP2021077946A5 (enExample) 2022-11-08
JP7402016B2 true JP7402016B2 (ja) 2023-12-20

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KR102772255B1 (ko) * 2019-02-01 2025-02-25 엘지전자 주식회사 이차 변환에 기반한 영상 코딩 방법 및 그 장치
JP7528944B2 (ja) * 2019-09-06 2024-08-06 ソニーグループ株式会社 画像処理装置および方法
WO2021063803A1 (en) * 2019-10-02 2021-04-08 Interdigital Vc Holdings France, Sas Derivation of quantization matrices for joint cb-cr coding
KR102901783B1 (ko) 2020-02-24 2025-12-19 바이트댄스 아이엔씨 서브픽처와 타일 행 시그널링 간의 상호작용
CN115211044B (zh) * 2020-03-03 2024-10-01 字节跳动有限公司 使用条带头信令通知控制缩放处理
JP7407300B2 (ja) 2020-03-11 2023-12-28 北京字節跳動網絡技術有限公司 適応ループフィルタリング
JP7514330B2 (ja) 2020-05-31 2024-07-10 北京字節跳動網絡技術有限公司 ローカルデュアルツリーモードタイプ定義を伴うパレットモード
WO2022119301A1 (ko) * 2020-12-01 2022-06-09 현대자동차주식회사 인트라 예측을 이용하는 비디오 코딩 방법 및 장치
EP4325855A4 (en) * 2021-04-12 2025-04-09 LG Electronics Inc. Method and device for non-separable low-frequency transformation

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US20050213851A1 (en) * 2004-03-25 2005-09-29 Wen-Kuo Lin Scaling device and method for scaling a digital picture
BRPI0621340A2 (pt) * 2006-02-13 2011-12-06 Toshiba Kk Toshiba Corp método e aparelho e programa de codificação/decodificação de vìdeo
US20080107176A1 (en) * 2006-11-02 2008-05-08 General Instrument Corporation Method and Apparatus for Detecting All Zero Coefficients
US8588295B2 (en) * 2009-03-09 2013-11-19 Mediatek Inc. Methods and electronic devices for quantization and de-quantization
US20150043637A1 (en) * 2012-04-13 2015-02-12 Sony Corporation Image processing device and method
JP6168365B2 (ja) * 2012-06-12 2017-07-26 サン パテント トラスト 動画像符号化方法、動画像復号化方法、動画像符号化装置および動画像復号化装置
US9253483B2 (en) * 2012-09-25 2016-02-02 Google Technology Holdings LLC Signaling of scaling list
US10491922B2 (en) * 2015-09-29 2019-11-26 Qualcomm Incorporated Non-separable secondary transform for video coding
US10708164B2 (en) * 2016-05-03 2020-07-07 Qualcomm Incorporated Binarizing secondary transform index
US10638126B2 (en) * 2017-05-05 2020-04-28 Qualcomm Incorporated Intra reference filter for video coding
US11134272B2 (en) * 2017-06-29 2021-09-28 Qualcomm Incorporated Memory reduction for non-separable transforms
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Non-Patent Citations (1)

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Title
Adarsh K. Ramasubramonian, et al.，AHG15: Scaling matrices for LFNST-coded blocks，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，JVET-P0365-v2，16th Meeting: Geneva, CH，2019年10月，pp.1-4

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US20210385492A1 (en) 2021-12-09
US20210136415A1 (en) 2021-05-06
US11770559B2 (en) 2023-09-26
JP2021077946A (ja) 2021-05-20
US11128891B2 (en) 2021-09-21

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