CN113228646B - 具有非线性限幅的自适应环路滤波(alf) - Google Patents

具有非线性限幅的自适应环路滤波(alf) Download PDF

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CN113228646B
CN113228646B CN201980085269.5A CN201980085269A CN113228646B CN 113228646 B CN113228646 B CN 113228646B CN 201980085269 A CN201980085269 A CN 201980085269A CN 113228646 B CN113228646 B CN 113228646B
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filter
clipping
alf
sample
value
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CN113228646A (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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Priority to CN202410366025.7A priority patent/CN118354074A/zh
Priority to CN202410366016.8A priority patent/CN118354071A/zh
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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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  • Signal Processing (AREA)
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  • Picture Signal Circuits (AREA)
CN201980085269.5A 2018-12-21 2019-11-29 具有非线性限幅的自适应环路滤波(alf) Active CN113228646B (zh)

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CN202410366021.9A 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
CN202410366031.2A 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
CN202410366023.8A 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
CN202410366025.7A 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
CN202410366016.8A 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

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GB1821156.5 2018-12-21
GB1821156.5A GB2580173B (en) 2018-12-21 2018-12-21 A filter
GB1901775.5A GB2580190B (en) 2018-12-21 2019-02-08 Adaptive loop filter using a nonlinear function
GB1901775.5 2019-02-08
PCT/EP2019/083066 WO2020126411A1 (en) 2018-12-21 2019-11-29 Adaptive loop filtering (alf) with non-linear clipping

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CN202410366031.2A Division 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
CN202410366023.8A Division 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 Division 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
CN202410366021.9A Division 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

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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
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
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
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
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

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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
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
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
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

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