CN118354072A - 对图像的一个或多个部分进行编码和解码的方法和装置以及存储介质 - Google Patents

对图像的一个或多个部分进行编码和解码的方法和装置以及存储介质 Download PDF

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Publication number
CN118354072A
CN118354072A CN202410366021.9A CN202410366021A CN118354072A CN 118354072 A CN118354072 A CN 118354072A CN 202410366021 A CN202410366021 A CN 202410366021A CN 118354072 A CN118354072 A CN 118354072A
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China
Prior art keywords
filter
clipping
alf
sample
value
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CN202410366021.9A
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Chinese (zh)
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乔纳森·泰奎特
C·吉斯科特
G·拉罗彻
P·乌诺
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Canon Inc
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Canon 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
    • H04N19/134—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
    • H04N19/136—Incoming video signal characteristics or properties
    • 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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
    • 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
    • H04N19/182—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 pixel
    • 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
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/439—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using cascaded computational arrangements for performing a single operation, e.g. filtering
    • 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
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)
  • Picture Signal Circuits (AREA)
CN202410366021.9A 2018-12-21 2019-11-29 对图像的一个或多个部分进行编码和解码的方法和装置以及存储介质 Pending CN118354072A (zh)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB1821156.5 2018-12-21
GB1821156.5A GB2580173B (en) 2018-12-21 2018-12-21 A filter
GB1901775.5 2019-02-08
GB1901775.5A GB2580190B (en) 2018-12-21 2019-02-08 Adaptive loop filter using a nonlinear function
PCT/EP2019/083066 WO2020126411A1 (en) 2018-12-21 2019-11-29 Adaptive loop filtering (alf) with non-linear clipping
CN201980085269.5A CN113228646B (zh) 2018-12-21 2019-11-29 具有非线性限幅的自适应环路滤波(alf)

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CN118354072A true CN118354072A (zh) 2024-07-16

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CN202410366021.9A Pending CN118354072A (zh) 2018-12-21 2019-11-29 对图像的一个或多个部分进行编码和解码的方法和装置以及存储介质
CN202410366023.8A Pending CN118354073A (zh) 2018-12-21 2019-11-29 对图像的一个或多个部分进行编码和解码的方法和装置以及存储介质
CN202410366016.8A Pending CN118354071A (zh) 2018-12-21 2019-11-29 对图像的一个或多个部分进行编码和解码的方法和装置以及存储介质
CN202410366025.7A Pending CN118354074A (zh) 2018-12-21 2019-11-29 对图像的一个或多个部分进行编码和解码的方法和装置以及存储介质
CN202410366031.2A Pending CN118413643A (zh) 2018-12-21 2019-11-29 对图像的一个或多个部分进行编码和解码的方法和装置以及存储介质
CN201980085269.5A Active CN113228646B (zh) 2018-12-21 2019-11-29 具有非线性限幅的自适应环路滤波(alf)

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CN202410366016.8A Pending CN118354071A (zh) 2018-12-21 2019-11-29 对图像的一个或多个部分进行编码和解码的方法和装置以及存储介质
CN202410366025.7A Pending CN118354074A (zh) 2018-12-21 2019-11-29 对图像的一个或多个部分进行编码和解码的方法和装置以及存储介质
CN202410366031.2A Pending CN118413643A (zh) 2018-12-21 2019-11-29 对图像的一个或多个部分进行编码和解码的方法和装置以及存储介质
CN201980085269.5A Active CN113228646B (zh) 2018-12-21 2019-11-29 具有非线性限幅的自适应环路滤波(alf)

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US (7) US11750804B2 (https=)
EP (6) EP3900334B1 (https=)
JP (2) JP7308946B2 (https=)
KR (1) KR102764983B1 (https=)
CN (6) CN118354072A (https=)
BR (1) BR112021012035A2 (https=)
ES (1) ES3060652T3 (https=)
GB (2) GB2580173B (https=)
TW (1) TWI834773B (https=)
WO (1) WO2020126411A1 (https=)

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GB2580190B (en) 2022-09-14
EP4708872A2 (en) 2026-03-11
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JP7549709B2 (ja) 2024-09-11
JP2023123788A (ja) 2023-09-05
JP2022511745A (ja) 2022-02-01
ES3060652T3 (en) 2026-03-27
EP4708875A2 (en) 2026-03-11
GB201821156D0 (en) 2019-02-06
TWI834773B (zh) 2024-03-11
US20230379461A1 (en) 2023-11-23
EP4708873A2 (en) 2026-03-11
EP4708871A2 (en) 2026-03-11
CN118354073A (zh) 2024-07-16
GB201901775D0 (en) 2019-03-27
GB2580190A (en) 2020-07-15
US20220078415A1 (en) 2022-03-10
JP7308946B2 (ja) 2023-07-14
CN118354071A (zh) 2024-07-16
CN118354074A (zh) 2024-07-16
US12250374B2 (en) 2025-03-11
US20230370595A1 (en) 2023-11-16
US12250375B2 (en) 2025-03-11
US20230370594A1 (en) 2023-11-16
GB2580173A (en) 2020-07-15
EP3900334A1 (en) 2021-10-27
CN118413643A (zh) 2024-07-30
US20250168334A1 (en) 2025-05-22
US12052416B2 (en) 2024-07-30
WO2020126411A1 (en) 2020-06-25
US12250373B2 (en) 2025-03-11
TW202025740A (zh) 2020-07-01
US20240048696A1 (en) 2024-02-08
KR20210099134A (ko) 2021-08-11
CN113228646A (zh) 2021-08-06
EP4708874A2 (en) 2026-03-11
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US12284343B2 (en) 2025-04-22
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US11750804B2 (en) 2023-09-05
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