EP2625859A1 - Verfahren und vorrichtung für adaptive schleifenfilterung auf regionsbasis - Google Patents

Verfahren und vorrichtung für adaptive schleifenfilterung auf regionsbasis

Info

Publication number
EP2625859A1
EP2625859A1 EP11830225.6A EP11830225A EP2625859A1 EP 2625859 A1 EP2625859 A1 EP 2625859A1 EP 11830225 A EP11830225 A EP 11830225A EP 2625859 A1 EP2625859 A1 EP 2625859A1
Authority
EP
European Patent Office
Prior art keywords
alf
region
design
regions
filter
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.)
Withdrawn
Application number
EP11830225.6A
Other languages
English (en)
French (fr)
Other versions
EP2625859A4 (de
Inventor
Ching-Yeh Chen
Chih-Ming Fu
Chia-Yang Tsai
Yu-Wen Huang
Shaw-Min Lei
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HFI Innovation Inc
Original Assignee
MediaTek Inc
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
Priority claimed from US13/093,068 external-priority patent/US9094658B2/en
Priority claimed from US13/158,427 external-priority patent/US9055305B2/en
Priority claimed from US13/177,343 external-priority patent/US8861617B2/en
Application filed by MediaTek Inc filed Critical MediaTek Inc
Publication of EP2625859A1 publication Critical patent/EP2625859A1/de
Publication of EP2625859A4 publication Critical patent/EP2625859A4/de
Withdrawn legal-status Critical Current

Links

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
    • H04N19/169—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
    • H04N19/80—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
    • H04N19/10—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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
    • 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
    • H04N19/156—Availability of hardware or computational resources, e.g. encoding based on power-saving criteria
    • 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
    • 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
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/19—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding using optimisation based on Lagrange multipliers
    • 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
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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

Definitions

  • QC ALF Another ALF scheme (called QC ALF) was proposed by Qualcomm ("Video coding technology proposal by Qualcomm Inc.”, Karczewicz et al, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11, 1st Meeting: Dresden, DE, 15-23 April, 2010, Document: JCTVC-A121.
  • the ALF is applied to the deblocked video data on a block by block basis.
  • SLM Sum-modified Laplacian Measure
  • Fig. 1 illustrates an exemplary block diagram of a video coding system based on motion compensated prediction, where adaptive loop filter is applied to reconstructed video data.
  • Fig. 5 illustrates the scanning order through the 4x4 regions according to the deformed Hilbert curve.
  • Fig. 9 illustrates the scanning order through the 4x4 regions according to the spiral scan.
  • Fig. 11 illustrates the scanning order through the 4x4 regions according to the raster scan.
  • Fig. 12 illustrates an example of region splitting, where a region is split into five regions, i.e., Fo, Fi, F 2 , F 3 and a No-Filter region.
  • Fig. 13 illustrates an example where the five to-be-filtered regions are merged into three regions, Fo', and F and a No-Filter region.
  • the set of ALF filters may be pre-defined and the filter selection can be indicated by an index.
  • the filter can be derived in a time-delayed arrangement based on video data already reconstructed. Therefore, no side information or very little side information is needed.
  • Other means for reducing information associated with the filter can be used such as entropy coding of the filter coefficients and/or transmitting the coefficients differentially.
  • FIG. 1 illustrates a system block diagram 100 of motion- compensated video encoder with deblocking.
  • Compression system 100 illustrates a typical video encoder incorporating Intra/Inter-prediction, Discrete Cosine Transform (DCT) and entropy coding to generate compressed video data.
  • the input video data enters the encoder through input interface 112 and the input video data is predicted using Intra/Inter-prediction 110.
  • Intra prediction mode the incoming video data are predicted by surrounding data in the same frame picture or field picture that are already coded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
EP11830225.6A 2010-10-05 2011-09-30 Verfahren und vorrichtung für adaptive schleifenfilterung auf regionsbasis Withdrawn EP2625859A4 (de)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US39006810P 2010-10-05 2010-10-05
US42172910P 2010-12-10 2010-12-10
US201161429313P 2011-01-03 2011-01-03
US201161454829P 2011-03-21 2011-03-21
US13/093,068 US9094658B2 (en) 2010-05-10 2011-04-25 Method and apparatus of adaptive loop filtering
US13/158,427 US9055305B2 (en) 2011-01-09 2011-06-12 Apparatus and method of sample adaptive offset for video coding
US13/177,343 US8861617B2 (en) 2010-10-05 2011-07-06 Method and apparatus of region-based adaptive loop filtering
PCT/CN2011/080408 WO2012045269A1 (en) 2010-10-05 2011-09-30 Method and apparatus of region-based adaptive loop filtering

Publications (2)

Publication Number Publication Date
EP2625859A1 true EP2625859A1 (de) 2013-08-14
EP2625859A4 EP2625859A4 (de) 2016-03-02

Family

ID=45927217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11830225.6A Withdrawn EP2625859A4 (de) 2010-10-05 2011-09-30 Verfahren und vorrichtung für adaptive schleifenfilterung auf regionsbasis

Country Status (5)

Country Link
EP (1) EP2625859A4 (de)
KR (1) KR101526349B1 (de)
CN (3) CN107087180B (de)
CA (1) CA2805722C (de)
WO (1) WO2012045269A1 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201119206D0 (en) 2011-11-07 2011-12-21 Canon Kk Method and device for providing compensation offsets for a set of reconstructed samples of an image
EP2838259A4 (de) * 2012-04-13 2015-12-16 Mitsubishi Electric Corp Vorrichtung zur codierung von bewegtbildern, vorrichtung zur decodierung von bewegtbildern, verfahren zur codierung von bewegtbildern und verfahren zur decodierung von bewegtbildern
DK2697973T3 (en) 2012-04-16 2017-09-25 Hfi Innovation Inc Method and device for loop filtration across slab or tile borders
CA3217710A1 (en) * 2012-05-25 2013-11-28 Sun Patent Trust Image encoding and decoding using context adaptive binary arithmetic coding with a bypass mode
CA2863549C (en) * 2012-05-29 2018-12-04 Mediatek Inc. Method and apparatus for coding of sample adaptive offset information
LT2854398T (lt) 2012-06-11 2018-01-10 Samsung Electronics Co., Ltd. Vaizdo kodavimo būdas, bendrinant sao parametrą pagal spalvio komponentą
US9386307B2 (en) * 2012-06-14 2016-07-05 Qualcomm Incorporated Grouping of bypass-coded bins for SAO syntax elements
CN103338374B (zh) 2013-06-21 2016-07-06 华为技术有限公司 图像处理方法及装置
US10659817B2 (en) 2013-07-15 2020-05-19 Hfi Innovation Inc. Method of sample adaptive offset processing for video coding
CN104486630B (zh) * 2014-12-16 2017-10-20 北京金山云网络技术有限公司 H.265视频编码中sao模式下偏移量的统计方法
CN104602026B (zh) * 2015-01-22 2017-12-01 复旦大学 一种适用于hevc标准下编码器中全复用的重建环路结构
US9872026B2 (en) * 2015-06-12 2018-01-16 Intel Corporation Sample adaptive offset coding
US11146788B2 (en) 2015-06-12 2021-10-12 Qualcomm Incorporated Grouping palette bypass bins for video coding
WO2016204374A1 (ko) * 2015-06-18 2016-12-22 엘지전자 주식회사 영상 코딩 시스템에서 영상 필터링 방법 및 장치
CN105357538B (zh) * 2015-11-26 2020-01-03 广东中星微电子有限公司 自适应环路滤波方法和装置
BR112021024638A2 (pt) 2019-06-14 2022-01-18 Beijing Bytedance Network Tech Co Ltd Método de processamento de dados de vídeo, aparelho para processamento de dados de vídeo, meio de armazenamento e meio de gravação não transitórios legíveis por computador
CN113994671B (zh) 2019-06-14 2024-05-10 北京字节跳动网络技术有限公司 基于颜色格式处理视频单元边界和虚拟边界
WO2021004491A1 (en) 2019-07-09 2021-01-14 Beijing Bytedance Network Technology Co., Ltd. Sample determination for adaptive loop filtering
CA3146773A1 (en) 2019-07-11 2021-01-14 Beijing Bytedance Network Technology Co., Ltd. Sample padding in adaptive loop filtering
EP3984219A4 (de) 2019-07-15 2022-08-17 Beijing Bytedance Network Technology Co., Ltd. Klassifizierung in einer adaptiven schleifenfilterung
KR20220061980A (ko) 2019-09-22 2022-05-13 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 적응적 루프 필터링에서의 패딩 프로세스
EP4022910A4 (de) * 2019-09-27 2022-11-16 Beijing Bytedance Network Technology Co., Ltd. Adaptive schleifenfilterung zwischen verschiedenen videoeinheiten
KR20220071203A (ko) 2019-10-10 2022-05-31 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 적응적 루프 필터링에서 이용 불가능한 샘플 위치들에서의 패딩 프로세스
CN110809158B (zh) * 2019-11-12 2021-06-01 腾讯科技（深圳）有限公司 图像环路滤波处理方法、装置
CN111314711B (zh) * 2020-03-31 2021-05-14 电子科技大学 一种基于自适应自导向滤波的环路滤波方法
US11463691B2 (en) * 2020-06-03 2022-10-04 Tencent America LLC Region adaptive loop filter for video coding
WO2022191525A1 (ko) * 2021-03-08 2022-09-15 현대자동차주식회사 나선스캔 순서를 이용하는 비디오 코딩방법 및 장치
CN114368150B (zh) * 2021-12-22 2022-11-11 鑫精合激光科技发展（北京）有限公司 一种三维打印方法及计算机存储介质
WO2023225854A1 (zh) * 2022-05-24 2023-11-30 Oppo广东移动通信有限公司 一种环路滤波方法、视频编解码方法、装置和系统

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2899977A1 (de) * 2002-01-31 2015-07-29 Samsung Electronics Co., Ltd Filterverfahren und Vorrichtung zur Verminderung von Blockartefakten und Überschwingungsstörungen
EP1980112B1 (de) * 2006-02-02 2012-10-24 Thomson Licensing Verfahren und vorrichtung zur adaptiven gewichtsauswahl für die bewegungskompensierte vorhersage
EP4224853A1 (de) * 2006-11-08 2023-08-09 InterDigital VC Holdings, Inc. Verfahren und vorrichtungen zur in-loop-de-artifakt-filterung
CN101321277A (zh) * 2007-06-09 2008-12-10 华为技术有限公司 去块效应的方法及装置
US9967590B2 (en) * 2008-04-10 2018-05-08 Qualcomm Incorporated Rate-distortion defined interpolation for video coding based on fixed filter or adaptive filter
US9924184B2 (en) * 2008-06-30 2018-03-20 Microsoft Technology Licensing, Llc Error detection, protection and recovery for video decoding
CN101635849B (zh) * 2008-07-24 2011-11-16 青岛海信信芯科技有限公司 一种环路滤波方法及环路滤波器
US8326075B2 (en) * 2008-09-11 2012-12-04 Google Inc. System and method for video encoding using adaptive loop filter
US8548041B2 (en) * 2008-09-25 2013-10-01 Mediatek Inc. Adaptive filter
CN101742292B (zh) * 2008-11-14 2013-03-27 北京中星微电子有限公司 基于图像内容信息的环路滤波方法和滤波器
CN201345710Y (zh) * 2008-12-31 2009-11-11 暨南大学 一种适用于视频解码的环路滤波器
CN101651829A (zh) * 2009-06-29 2010-02-17 北京中星微电子有限公司 一种环路滤波的方法、装置及一种移动多媒体终端芯片
JP5359657B2 (ja) * 2009-07-31 2013-12-04 ソニー株式会社 画像符号化装置および方法、記録媒体、並びにプログラム

Also Published As

Publication number Publication date
CN103155557A (zh) 2013-06-12
CN106878729A (zh) 2017-06-20
CA2805722A1 (en) 2012-04-12
WO2012045269A1 (en) 2012-04-12
CN106878729B (zh) 2019-09-24
CN103155557B (zh) 2017-03-01
EP2625859A4 (de) 2016-03-02
CN107087180A (zh) 2017-08-22
KR20130030294A (ko) 2013-03-26
KR101526349B1 (ko) 2015-06-05
CA2805722C (en) 2016-03-29
CN107087180B (zh) 2019-10-29

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