JP7554776B2 - 適応ループフィルタのためのクリッピング値算出の簡易化 - Google Patents

適応ループフィルタのためのクリッピング値算出の簡易化 Download PDF

Info

Publication number
JP7554776B2
JP7554776B2 JP2021568791A JP2021568791A JP7554776B2 JP 7554776 B2 JP7554776 B2 JP 7554776B2 JP 2021568791 A JP2021568791 A JP 2021568791A JP 2021568791 A JP2021568791 A JP 2021568791A JP 7554776 B2 JP7554776 B2 JP 7554776B2
Authority
JP
Japan
Prior art keywords
clipping
filter
integer
block
values
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2021568791A
Other languages
English (en)
Japanese (ja)
Other versions
JP2022534366A5 (https=
JP2022534366A (ja
JPWO2020236878A5 (https=
Inventor
ナン・フ
ヴァディム・セレジン
マルタ・カルツェヴィッツ
Original Assignee
クアルコム，インコーポレイテッド
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by クアルコム，インコーポレイテッド filed Critical クアルコム，インコーポレイテッド
Publication of JP2022534366A publication Critical patent/JP2022534366A/ja
Publication of JP2022534366A5 publication Critical patent/JP2022534366A5/ja
Publication of JPWO2020236878A5 publication Critical patent/JPWO2020236878A5/ja
Application granted granted Critical
Publication of JP7554776B2 publication Critical patent/JP7554776B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H04N19/134—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
    • H04N19/186—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
    • H04N19/80—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)
JP2021568791A 2019-05-21 2020-05-20 適応ループフィルタのためのクリッピング値算出の簡易化 Active JP7554776B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201962851064P 2019-05-21 2019-05-21
US62/851,064 2019-05-21
US16/878,436 US11356662B2 (en) 2019-05-21 2020-05-19 Simplification of clipping value calculation for adaptive loop filters
US16/878,436 2020-05-19
PCT/US2020/033711 WO2020236878A1 (en) 2019-05-21 2020-05-20 Simplification of clipping value calculation for adaptive loop filters

Publications (4)

Publication Number Publication Date
JP2022534366A JP2022534366A (ja) 2022-07-29
JP2022534366A5 JP2022534366A5 (https=) 2023-05-12
JPWO2020236878A5 JPWO2020236878A5 (https=) 2023-05-12
JP7554776B2 true JP7554776B2 (ja) 2024-09-20

Family

ID=73456403

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021568791A Active JP7554776B2 (ja) 2019-05-21 2020-05-20 適応ループフィルタのためのクリッピング値算出の簡易化

Country Status (8)

Country Link
US (1) US11356662B2 (https=)
EP (1) EP3973703A1 (https=)
JP (1) JP7554776B2 (https=)
KR (1) KR20220009946A (https=)
CN (2) CN113826389B (https=)
BR (1) BR112021022783A2 (https=)
SG (1) SG11202111727SA (https=)
WO (1) WO2020236878A1 (https=)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2580173B (en) * 2018-12-21 2022-07-27 Canon Kk A filter
WO2020182620A1 (en) * 2019-03-08 2020-09-17 Canon Kabushiki Kaisha An adaptive loop filter
CN118631990A (zh) * 2019-06-17 2024-09-10 韩国电子通信研究院 自适应环内滤波方法和设备
JP6912642B2 (ja) * 2019-06-20 2021-08-04 Kddi株式会社 画像復号装置、画像復号方法及びプログラム
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
EP4661403A3 (en) 2019-12-28 2026-03-11 Beijing Dajia Internet Information Technology Co., Ltd. In-loop filters for video coding
CN114007067B (zh) 2020-07-28 2023-05-23 北京达佳互联信息技术有限公司 对视频信号进行解码的方法、设备和介质
KR20230113998A (ko) 2022-01-24 2023-08-01 주식회사 엘지에너지솔루션 전지 모듈 및 이를 포함하는 전지 팩

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020126411A1 (en) 2018-12-21 2020-06-25 Canon Kabushiki Kaisha Adaptive loop filtering (alf) with non-linear clipping

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7227901B2 (en) * 2002-11-21 2007-06-05 Ub Video Inc. Low-complexity deblocking filter
WO2006018789A1 (en) * 2004-08-16 2006-02-23 Koninklijke Philips Electronics N.V. Video processor comprising a sharpness enhancer
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
EP2664139A2 (en) * 2011-01-14 2013-11-20 Telefonaktiebolaget LM Ericsson (PUBL) A method for deblocking filter control and a deblocking filtering control device
US9185404B2 (en) * 2011-10-07 2015-11-10 Qualcomm Incorporated Performing transform dependent de-blocking filtering
US9516306B2 (en) * 2013-03-27 2016-12-06 Qualcomm Incorporated Depth coding modes signaling of depth data for 3D-HEVC
WO2016146158A1 (en) * 2015-03-16 2016-09-22 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive clipping in filtering

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020126411A1 (en) 2018-12-21 2020-06-25 Canon Kabushiki Kaisha Adaptive loop filtering (alf) with non-linear clipping
JP2022511745A (ja) 2018-12-21 2022-02-01 キヤノン株式会社 非線形クリッピングのアダプティブループフィルタ

Also Published As

Publication number Publication date
EP3973703A1 (en) 2022-03-30
KR20220009946A (ko) 2022-01-25
WO2020236878A1 (en) 2020-11-26
CN113826389B (zh) 2025-01-10
JP2022534366A (ja) 2022-07-29
CN113826389A (zh) 2021-12-21
US11356662B2 (en) 2022-06-07
TW202103496A (zh) 2021-01-16
CN119893092A (zh) 2025-04-25
US20200374518A1 (en) 2020-11-26
BR112021022783A2 (pt) 2022-01-11
SG11202111727SA (en) 2021-12-30

Similar Documents

Publication Publication Date Title
US12470707B2 (en) Reusing adaptive loop filter (ALF) sub-picture boundary processing for raster-scan slice boundaries
TWI867001B (zh) 具有可切換濾波器之參考圖像重新取樣
JP7554776B2 (ja) 適応ループフィルタのためのクリッピング値算出の簡易化
JP7465281B2 (ja) イントラ予測モード導出のためのブロックベースの量子化された残差ドメインのパルスコード変調割り当て
CN114982246B (zh) 环路滤波器的自适应舍入
JP7696920B2 (ja) 色フォーマットサポートのための適応ループフィルタ処理
KR20210068439A (ko) 히스토리 기반 모션 벡터 예측자에 대한 개선들
KR20220032016A (ko) 래스터-스캔 슬라이스들에 걸친 적응적 루프 필터링
WO2019079117A1 (en) CHROMINANCE QUANTIFICATION PARAMETER (QP) SHIFT
CN114128277A (zh) 针对局部双树的调色板预测器更新
TW202203650A (zh) 解碼圖片緩衝器（ｄｐｂ）操作和存取單元定界符（ａｕｄ）
KR20210104904A (ko) 비디오 인코더, 비디오 디코더, 및 대응하는 방법
JP2024545028A (ja) 適応型フィルムグレイン合成
CA3136080C (en) Block-based quantized residual domain pulse code modulation assignment for intra prediction mode derivation
TW202433920A (zh) 用於跨分量適應性迴路濾波的區域優化儲存方案
KR20230117571A (ko) 높은 비트 심도 비디오 코딩을 위한 라이스 파라미터 도출을 위한 낮은 복잡도 히스토리 사용
HK40066199B (zh) 对自适应环路滤波器的削波值计算的简化
HK40066199A (zh) 对自适应环路滤波器的削波值计算的简化

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20230501

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20230501

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20240416

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20240430

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20240730

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20240813

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20240909

R150 Certificate of patent or registration of utility model

Ref document number: 7554776

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150