TWI879773B - 用於視訊寫碼中之自適應迴路濾波器之剪切索引寫碼 - Google Patents

用於視訊寫碼中之自適應迴路濾波器之剪切索引寫碼 Download PDF

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Publication number
TWI879773B
TWI879773B TW109119652A TW109119652A TWI879773B TW I879773 B TWI879773 B TW I879773B TW 109119652 A TW109119652 A TW 109119652A TW 109119652 A TW109119652 A TW 109119652A TW I879773 B TWI879773 B TW I879773B
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Taiwan
Prior art keywords
alf
block
video
index
filter support
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TW109119652A
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English (en)
Chinese (zh)
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TW202106013A (zh
Inventor
楠 胡
法迪姆 塞瑞金
席爾米 伊恩斯 埃伊爾梅茲
馬塔 卡茲維克茲
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美商高通公司
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Publication of TW202106013A publication Critical patent/TW202106013A/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
    • H04N19/169—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
    • H04N19/186—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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
TW109119652A 2019-06-11 2020-06-11 用於視訊寫碼中之自適應迴路濾波器之剪切索引寫碼 TWI879773B (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201962859948P 2019-06-11 2019-06-11
US62/859,948 2019-06-11
US16/897,049 2020-06-09
US16/897,049 US11418779B2 (en) 2019-06-11 2020-06-09 Clipping indices coding for adaptive loop filter in video coding

Publications (2)

Publication Number Publication Date
TW202106013A TW202106013A (zh) 2021-02-01
TWI879773B true TWI879773B (zh) 2025-04-11

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TW109119652A TWI879773B (zh) 2019-06-11 2020-06-11 用於視訊寫碼中之自適應迴路濾波器之剪切索引寫碼

Country Status (18)

Country Link
US (1) US11418779B2 (https=)
EP (1) EP3984233B1 (https=)
JP (1) JP7494218B2 (https=)
KR (1) KR102847958B1 (https=)
CN (1) CN113940067B (https=)
AU (1) AU2020292327B2 (https=)
BR (1) BR112021024316A2 (https=)
CA (1) CA3139825A1 (https=)
CL (1) CL2021003263A1 (https=)
CO (1) CO2021016628A2 (https=)
IL (1) IL287900B2 (https=)
MX (1) MX2021015404A (https=)
MY (1) MY210456A (https=)
PH (1) PH12021552843A1 (https=)
SG (1) SG11202112340YA (https=)
TW (1) TWI879773B (https=)
WO (1) WO2020252154A1 (https=)
ZA (1) ZA202110269B (https=)

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CN114009044A (zh) 2019-06-14 2022-02-01 瑞典爱立信有限公司 用于基于矩阵的帧内预测的简化下采样
WO2020258055A1 (zh) * 2019-06-25 2020-12-30 北京大学 环路滤波的方法与装置
CN120378608A (zh) * 2019-07-08 2025-07-25 Lg电子株式会社 解码和编码设备及发送用于图像的数据的设备
US20230050232A1 (en) * 2020-01-15 2023-02-16 Lg Electronics Inc. In-loop filtering-based image coding apparatus and method
US11838557B2 (en) * 2021-11-17 2023-12-05 Mediatek Inc. Methods and apparatuses of ALF derivation in video encoding system
WO2026007113A1 (zh) * 2024-07-05 2026-01-08 Oppo广东移动通信有限公司 编解码方法、码流、编码器、解码器以及存储介质

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US20170332075A1 (en) * 2016-05-16 2017-11-16 Qualcomm Incorporated Confusion of multiple filters in adaptive loop filtering in video coding

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US8787449B2 (en) * 2010-04-09 2014-07-22 Sony Corporation Optimal separable adaptive loop filter
US9094658B2 (en) 2010-05-10 2015-07-28 Mediatek Inc. Method and apparatus of adaptive loop filtering
US9456111B2 (en) 2010-06-15 2016-09-27 Mediatek Inc. System and method for content adaptive clipping
US9516306B2 (en) 2013-03-27 2016-12-06 Qualcomm Incorporated Depth coding modes signaling of depth data for 3D-HEVC
US9602822B2 (en) * 2013-04-17 2017-03-21 Qualcomm Incorporated Indication of cross-layer picture type alignment in multi-layer video coding
TW201517597A (zh) 2013-07-31 2015-05-01 Nokia Corp 用於視訊編碼及解碼之方法及裝置
WO2016204524A1 (ko) * 2015-06-16 2016-12-22 엘지전자(주) 영상의 부호화/복호화 방법 및 이를 위한 장치
US11405611B2 (en) * 2016-02-15 2022-08-02 Qualcomm Incorporated Predicting filter coefficients from fixed filters for video coding
CA3023986A1 (en) * 2016-05-13 2017-11-16 Interdigital Vc Holdings, Inc. Method and apparatus for video coding with adaptive clipping
WO2018105579A1 (ja) * 2016-12-09 2018-06-14 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 符号化装置、復号装置、符号化方法及び復号方法
US11477448B2 (en) 2019-01-25 2022-10-18 Hfi Innovation Inc. Method and apparatus for non-linear adaptive loop filtering in video coding
WO2020211769A1 (en) 2019-04-15 2020-10-22 Beijing Bytedance Network Technology Co., Ltd. Clipping parameter derivation in adaptive loop filter
WO2020224545A1 (en) 2019-05-04 2020-11-12 Huawei Technologies Co., Ltd. An encoder, a decoder and corresponding methods using an adaptive loop filter

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US20170332075A1 (en) * 2016-05-16 2017-11-16 Qualcomm Incorporated Confusion of multiple filters in adaptive loop filtering in video coding

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Publication number Publication date
CL2021003263A1 (es) 2023-01-20
AU2020292327A1 (en) 2021-12-16
JP7494218B2 (ja) 2024-06-03
WO2020252154A1 (en) 2020-12-17
JP2022537662A (ja) 2022-08-29
IL287900A (en) 2022-01-01
TW202106013A (zh) 2021-02-01
ZA202110269B (en) 2025-01-29
CO2021016628A2 (es) 2022-01-17
EP3984233C0 (en) 2024-09-25
KR20220019236A (ko) 2022-02-16
MX2021015404A (es) 2022-01-24
IL287900B1 (en) 2024-09-01
CN113940067B (zh) 2024-09-06
SG11202112340YA (en) 2021-12-30
CN113940067A (zh) 2022-01-14
US20200396452A1 (en) 2020-12-17
EP3984233A1 (en) 2022-04-20
CA3139825A1 (en) 2020-12-17
PH12021552843A1 (en) 2022-10-17
KR102847958B1 (ko) 2025-08-19
US11418779B2 (en) 2022-08-16
EP3984233B1 (en) 2024-09-25
AU2020292327B2 (en) 2026-01-29
MY210456A (en) 2025-09-24
IL287900B2 (en) 2025-01-01
BR112021024316A2 (pt) 2022-01-11

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