JPWO2020264164A5 - - Google Patents

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Publication number
JPWO2020264164A5
JPWO2020264164A5 JP2021576133A JP2021576133A JPWO2020264164A5 JP WO2020264164 A5 JPWO2020264164 A5 JP WO2020264164A5 JP 2021576133 A JP2021576133 A JP 2021576133A JP 2021576133 A JP2021576133 A JP 2021576133A JP WO2020264164 A5 JPWO2020264164 A5 JP WO2020264164A5
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JP
Japan
Prior art keywords
chroma
chroma block
mapping table
block
value
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JP2021576133A
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English (en)
Japanese (ja)
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JP2022538060A5 (https=
JP7565955B2 (ja
JP2022538060A (ja
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Priority claimed from US16/911,003 external-priority patent/US11146823B2/en
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Publication of JP2022538060A5 publication Critical patent/JP2022538060A5/ja
Publication of JPWO2020264164A5 publication Critical patent/JPWO2020264164A5/ja
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JP2021576133A 2019-06-25 2020-06-25 クロマ量子化パラメータ（ｑｐ）マッピングテーブルをシグナリングすること Active JP7565955B2 (ja)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US201962866561P 2019-06-25 2019-06-25
US62/866,561 2019-06-25
US201962909626P 2019-10-02 2019-10-02
US62/909,626 2019-10-02
US16/911,003 US11146823B2 (en) 2019-06-25 2020-06-24 Signalling chroma quantization parameter (QP) mapping tables
US16/911,003 2020-06-24
PCT/US2020/039626 WO2020264164A1 (en) 2019-06-25 2020-06-25 Signalling chroma quantization parameter (qp) mapping tables

Publications (4)

Publication Number Publication Date
JP2022538060A JP2022538060A (ja) 2022-08-31
JP2022538060A5 JP2022538060A5 (https=) 2023-06-08
JPWO2020264164A5 true JPWO2020264164A5 (https=) 2023-06-08
JP7565955B2 JP7565955B2 (ja) 2024-10-11

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JP2021576133A Active JP7565955B2 (ja) 2019-06-25 2020-06-25 クロマ量子化パラメータ（ｑｐ）マッピングテーブルをシグナリングすること

Country Status (8)

Country Link
US (1) US11146823B2 (https=)
EP (1) EP3991415A1 (https=)
JP (1) JP7565955B2 (https=)
KR (1) KR20220024117A (https=)
CN (1) CN113994678B (https=)
BR (1) BR112021025361A2 (https=)
TW (1) TWI877180B (https=)
WO (1) WO2020264164A1 (https=)

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Publication number Priority date Publication date Assignee Title
WO2021006562A1 (ko) * 2019-07-05 2021-01-14 엘지전자 주식회사 영상 디코딩 방법 및 그 장치
CN114128275A (zh) * 2019-07-12 2022-03-01 交互数字Vc控股法国有限公司 亮度到色度量化参数表信令
US11356684B2 (en) * 2019-08-30 2022-06-07 Alibaba Group Holding Limited Method and system for signaling chroma quantization parameter table
AU2020354852B2 (en) * 2019-09-23 2025-07-10 Huawei Technologies Co., Ltd. Method and apparatus for chrominance quantization parameters signalling
CN119893102A (zh) * 2019-10-28 2025-04-25 Lg电子株式会社 图像编码/解码设备和用于发送数据的设备
US12439095B2 (en) * 2021-04-16 2025-10-07 Tencent America LLC Entropy coding of sign map for transform coefficients

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US10298939B2 (en) * 2011-06-22 2019-05-21 Qualcomm Incorporated Quantization in video coding
US9451287B2 (en) 2011-11-08 2016-09-20 Qualcomm Incorporated Context reduction for context adaptive binary arithmetic coding
US9414054B2 (en) 2012-07-02 2016-08-09 Microsoft Technology Licensing, Llc Control and use of chroma quantization parameter values
US9294766B2 (en) 2013-09-09 2016-03-22 Apple Inc. Chroma quantization in video coding
WO2015130541A1 (en) * 2014-02-26 2015-09-03 Dolby Laboratories Licensing Corporation Luminance based coding tools for video compression
EP3059937A1 (en) 2015-02-20 2016-08-24 Thomson Licensing Method and apparatus for encoding color mapping information and processing pictures based on color mapping information
US10129558B2 (en) * 2015-09-21 2018-11-13 Qualcomm Incorporated Supplement enhancement information (SEI) messages for high dynamic range and wide color gamut video coding
US10652588B2 (en) * 2015-09-21 2020-05-12 Vid Scale, Inc. Inverse reshaping for high dynamic range video coding
US11095877B2 (en) * 2016-11-30 2021-08-17 Microsoft Technology Licensing, Llc Local hash-based motion estimation for screen remoting scenarios
EP3571843A1 (en) * 2017-01-18 2019-11-27 Dolby Laboratories Licensing Corporation Segment-based reshaping for coding high dynamic range video
JP6876822B2 (ja) 2017-03-21 2021-05-26 ドルビー ラボラトリーズ ライセンシング コーポレイション ルミナンス情報を用いた量子化パラメーター予測
US10728559B2 (en) * 2017-07-07 2020-07-28 Qualcomm Incorporated Precision of computation and signaling of dynamic range adjustment and color remapping information
WO2019148977A1 (en) * 2018-02-01 2019-08-08 Mediatek Inc. Methods and apparatuses of video encoding or decoding with adaptive quantization of video data
US11259023B2 (en) 2018-04-12 2022-02-22 Qualcomm Incorporated Harmonization of transform-based quantization and dynamic range adjustment scale derivation in video coding
CN119815031A (zh) * 2018-06-21 2025-04-11 交互数字Vc控股公司 视频编码和解码中的细化模式处理
SG11202111156PA (en) * 2019-04-26 2021-11-29 Huawei Tech Co Ltd Method and apparatus for signaling of mapping function of chroma quantization parameter
KR102399065B1 (ko) * 2019-05-28 2022-05-17 돌비 레버러토리즈 라이쎈싱 코오포레이션 양자화 파라미터 시그널링

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