TW202127884A - 用於用於視訊譯碼的跨分量適應性環路濾波的位元位移 - Google Patents

用於用於視訊譯碼的跨分量適應性環路濾波的位元位移 Download PDF

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TW202127884A
TW202127884A TW109132968A TW109132968A TW202127884A TW 202127884 A TW202127884 A TW 202127884A TW 109132968 A TW109132968 A TW 109132968A TW 109132968 A TW109132968 A TW 109132968A TW 202127884 A TW202127884 A TW 202127884A
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Taiwan
Prior art keywords
filter coefficient
value
block
video
video data
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TW109132968A
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English (en)
Chinese (zh)
Inventor
楠 胡
董傑
法迪姆 塞瑞金
馬塔 卡茲維克茲
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美商高通公司
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Publication of TW202127884A publication Critical patent/TW202127884A/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/80Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/117Filters, e.g. for pre-processing or post-processing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/132Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134Methods 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
    • H04N19/157Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169Methods 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
    • H04N19/17Methods 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
    • H04N19/176Methods 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169Methods 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
    • H04N19/186Methods 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70Methods 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
TW109132968A 2019-09-23 2020-09-23 用於用於視訊譯碼的跨分量適應性環路濾波的位元位移 TW202127884A (zh)

Applications Claiming Priority (4)

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

Publications (1)

Publication Number Publication Date
TW202127884A true TW202127884A (zh) 2021-07-16

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TW109132968A TW202127884A (zh) 2019-09-23 2020-09-23 用於用於視訊譯碼的跨分量適應性環路濾波的位元位移

Country Status (7)

Country Link
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=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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Publication number Priority date Publication date Assignee Title
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

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Publication number Publication date
US20210092370A1 (en) 2021-03-25
CN114402620B (zh) 2024-12-13
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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