CN114402620B - 用于视频编解码的交叉分量自适应环路滤波的比特移位 - Google Patents

用于视频编解码的交叉分量自适应环路滤波的比特移位 Download PDF

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CN114402620B
CN114402620B CN202080064955.7A CN202080064955A CN114402620B CN 114402620 B CN114402620 B CN 114402620B CN 202080064955 A CN202080064955 A CN 202080064955A CN 114402620 B CN114402620 B CN 114402620B
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block
video
value
video data
filter coefficient
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CN114402620A (zh
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N.胡
董洁
V.塞雷金
M.卡尔切维茨
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Qualcomm Inc
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Qualcomm Inc
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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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • H04N19/70—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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
    • 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
    • H04N19/186—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)
  • Compression Or Coding Systems Of Tv Signals (AREA)
CN202080064955.7A 2019-09-23 2020-09-23 用于视频编解码的交叉分量自适应环路滤波的比特移位 Active CN114402620B (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201962904508P 2019-09-23 2019-09-23
US62/904,508 2019-09-23
US17/028,209 2020-09-22
US17/028,209 US11343493B2 (en) 2019-09-23 2020-09-22 Bit shifting for cross-component adaptive loop filtering for video coding
PCT/US2020/052231 WO2021061782A1 (en) 2019-09-23 2020-09-23 Bit shifting for cross-component adaptive loop filtering for video coding

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CN114402620A CN114402620A (zh) 2022-04-26
CN114402620B true CN114402620B (zh) 2024-12-13

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US (1) US11343493B2 (https=)
EP (1) EP4035397A1 (https=)
JP (1) JP7566014B2 (https=)
KR (1) KR20220064969A (https=)
CN (1) CN114402620B (https=)
TW (1) TW202127884A (https=)
WO (1) WO2021061782A1 (https=)

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WO2021025167A1 (en) * 2019-08-08 2021-02-11 Panasonic Intellectual Property Corporation Of America System and method for video coding
WO2021025168A1 (en) 2019-08-08 2021-02-11 Panasonic Intellectual Property Corporation Of America System and method for video coding
CN120302049A (zh) 2019-08-08 2025-07-11 松下电器（美国）知识产权公司 用于视频编码的系统和方法
WO2021045130A1 (en) 2019-09-03 2021-03-11 Panasonic Intellectual Property Corporation Of America System and method for video coding
CN119450039A (zh) * 2019-11-22 2025-02-14 韩国电子通信研究院 使用自适应环路滤波器的图像编码/解码方法和比特流发送方法
US11432016B2 (en) * 2019-12-05 2022-08-30 Hfi Innovation Inc. Methods and apparatuses of syntax signaling constraint for cross-component adaptive loop filter in video coding system
CN112544081B (zh) * 2019-12-31 2023-12-22 北京大学 环路滤波的方法与装置
EP4104445A1 (en) * 2020-09-30 2022-12-21 Google LLC Multicolor lossless image compression
WO2026081207A1 (zh) * 2024-10-18 2026-04-23 Oppo广东移动通信有限公司 解码方法、编码方法、装置、设备、存储介质及程序产品

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US9807403B2 (en) * 2011-10-21 2017-10-31 Qualcomm Incorporated Adaptive loop filtering for chroma components
US20130107973A1 (en) * 2011-10-28 2013-05-02 Qualcomm Incorporated Loop filtering control over tile boundaries
US10419757B2 (en) * 2016-08-31 2019-09-17 Qualcomm Incorporated Cross-component filter
WO2019026721A1 (en) * 2017-08-01 2019-02-07 Sharp Kabushiki Kaisha SYSTEMS AND METHODS FOR FILTERING RECONSTRUCTED VIDEO DATA USING ADAPTIVE LOOP FILTERING TECHNIQUES
EP3987813A4 (en) * 2019-06-24 2023-03-08 Sharp Kabushiki Kaisha SYSTEMS AND METHODS FOR REDUCING RECONSTRUCTION ERROR IN VIDEO CODING BASED ON INTER-COMPONENT CORRELATION
GB2586484B (en) 2019-08-20 2023-03-08 Canon Kk A filter
HRP20241490T1 (hr) 2019-08-29 2025-01-03 Lg Electronics Inc. Aparati i metode za kodiranje slike
US11451834B2 (en) 2019-09-16 2022-09-20 Tencent America LLC Method and apparatus for cross-component filtering

Non-Patent Citations (2)

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CE2: Alf with Multiplication Replaced by Bit-Shifting (Test 2.5.1);ESENLIK, Semih et al.;Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，12th Meeting，Document: JVET-L0162;20181012;第1-2页 *
Cross-Component Adaptive Loop Filter for chroma;MISRA, Kiran et al.;Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，15th Meeting，Document: JVET-O0636_r1;20190712;第1, 2, 8页，图1 *

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TW202127884A (zh) 2021-07-16
US20210092370A1 (en) 2021-03-25
US11343493B2 (en) 2022-05-24
CN114402620A (zh) 2022-04-26
KR20220064969A (ko) 2022-05-19
JP7566014B2 (ja) 2024-10-11
JP2022548637A (ja) 2022-11-21
EP4035397A1 (en) 2022-08-03
WO2021061782A1 (en) 2021-04-01

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