JP7483725B2 - 符号化装置、復号装置、及びプログラム - Google Patents

符号化装置、復号装置、及びプログラム Download PDF

Info

Publication number
JP7483725B2
JP7483725B2 JP2021543092A JP2021543092A JP7483725B2 JP 7483725 B2 JP7483725 B2 JP 7483725B2 JP 2021543092 A JP2021543092 A JP 2021543092A JP 2021543092 A JP2021543092 A JP 2021543092A JP 7483725 B2 JP7483725 B2 JP 7483725B2
Authority
JP
Japan
Prior art keywords
block
unit
blocks
prediction
weighting factor
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
JP2021543092A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2021040036A1 (https=
JPWO2021040036A5 (https=
Inventor
俊輔 岩村
敦郎 市ヶ谷
慎平 根本
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.)
Japan Broadcasting Corp
Original Assignee
Japan Broadcasting Corp
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 Japan Broadcasting Corp filed Critical Japan Broadcasting Corp
Publication of JPWO2021040036A1 publication Critical patent/JPWO2021040036A1/ja
Publication of JPWO2021040036A5 publication Critical patent/JPWO2021040036A5/ja
Priority to JP2024074538A priority Critical patent/JP7656120B2/ja
Application granted granted Critical
Publication of JP7483725B2 publication Critical patent/JP7483725B2/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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • 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
    • H04N19/46—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
    • H04N19/80—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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
JP2021543092A 2019-08-29 2020-08-28 符号化装置、復号装置、及びプログラム Active JP7483725B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2024074538A JP7656120B2 (ja) 2019-08-29 2024-05-01 符号化装置、復号装置、及びプログラム

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019157240 2019-08-29
JP2019157240 2019-08-29
PCT/JP2020/032782 WO2021040036A1 (ja) 2019-08-29 2020-08-28 符号化装置、復号装置、及びプログラム

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2024074538A Division JP7656120B2 (ja) 2019-08-29 2024-05-01 符号化装置、復号装置、及びプログラム

Publications (3)

Publication Number Publication Date
JPWO2021040036A1 JPWO2021040036A1 (https=) 2021-03-04
JPWO2021040036A5 JPWO2021040036A5 (https=) 2022-05-26
JP7483725B2 true JP7483725B2 (ja) 2024-05-15

Family

ID=74683507

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2021543092A Active JP7483725B2 (ja) 2019-08-29 2020-08-28 符号化装置、復号装置、及びプログラム
JP2024074538A Active JP7656120B2 (ja) 2019-08-29 2024-05-01 符号化装置、復号装置、及びプログラム

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2024074538A Active JP7656120B2 (ja) 2019-08-29 2024-05-01 符号化装置、復号装置、及びプログラム

Country Status (4)

Country Link
US (2) US12192453B2 (https=)
JP (2) JP7483725B2 (https=)
CN (1) CN114342383B (https=)
WO (1) WO2021040036A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12368883B2 (en) * 2022-04-11 2025-07-22 Qualcomm Incorporated Block vector difference binarization and coding in video coding

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018123444A1 (ja) 2016-12-28 2018-07-05 ソニー株式会社 画像処理装置及び画像処理方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008193627A (ja) * 2007-01-12 2008-08-21 Mitsubishi Electric Corp 画像符号化装置、画像復号装置、および画像符号化方法、画像復号方法
WO2011089865A1 (ja) * 2010-01-21 2011-07-28 パナソニック株式会社 画像符号化方法、画像復号方法、それらの装置、プログラムおよび集積回路
US8805100B2 (en) * 2010-06-03 2014-08-12 Sharp Kabushiki Kaisha Filter device, image decoding device, image encoding device, and filter parameter data structure
US10713805B2 (en) * 2015-07-31 2020-07-14 Versitech Limited Depth discontinuity-based method for efficient intra coding for depth videos
JP6115968B2 (ja) * 2015-08-04 2017-04-19 日本電信電話株式会社 画像符号化装置、画像復号装置、画像符号化方法、画像復号方法、画像符号化プログラム及び画像復号プログラム
WO2017030199A1 (ja) * 2015-08-20 2017-02-23 日本放送協会 画像符号化装置、画像復号化装置、及びこれらのプログラム
JP6985287B2 (ja) * 2016-11-28 2021-12-22 日本放送協会 符号化装置、復号装置、符号化方法、及び復号方法
CN117041557A (zh) * 2016-12-07 2023-11-10 株式会社Kt 对图像信号进行解码或编码的方法和存储视频数据的设备
KR102541882B1 (ko) * 2016-12-27 2023-06-13 파나소닉 인텔렉츄얼 프로퍼티 코포레이션 오브 아메리카 부호화 장치, 복호 장치, 부호화 방법 및 복호 방법

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018123444A1 (ja) 2016-12-28 2018-07-05 ソニー株式会社 画像処理装置及び画像処理方法

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
Anand Meher Kotra et al.，AHG18/Non-CE5: Boundary strength fix for coding units using BCW，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，JVET-P0109-v2，16th Meeting: Geneva, CH，2019年10月，pp.1-6
Chia-Ming Tsai et al.，CE5-related: Deblocking considering prediction weights in BCW and TPM，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，JVET-P0161-v2，16th Meeting: Geneva, CH，2019年10月，pp.1-6
Shunsuke Iwamura et al.，[AHG18][Non-CE5] Proposed cleanup of deblocking filter process，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，JVET-P0586-v2，16th Meeting: Geneva, CH，2019年10月，pp.1-12
Shunsuke Iwamura, Shimpei Nemoto and Atsuro Ichigaya，Non-CE5: Boundary strength derivation of deblocking filter for transform-skipped block，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，JVET-O0656，15th Meeting: Gothenburg, SE，2019年06月，pp.1-6
Xuewei Meng et al.，AHG18/Non-CE5: Deblocking for TPM and BCW，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，JVET-P0269-v2，16th Meeting: Geneva, CH，2019年10月，pp.1-7

Also Published As

Publication number Publication date
CN114342383B (zh) 2024-05-03
US20250097419A1 (en) 2025-03-20
US12192453B2 (en) 2025-01-07
JPWO2021040036A1 (https=) 2021-03-04
JP2024087085A (ja) 2024-06-28
JP7656120B2 (ja) 2025-04-02
CN114342383A (zh) 2022-04-12
WO2021040036A1 (ja) 2021-03-04
US20220182621A1 (en) 2022-06-09

Similar Documents

Publication Publication Date Title
JP7130890B2 (ja) 符号化装置、復号装置、及びプログラム
JP7749052B2 (ja) 予測装置、符号化装置、復号装置、及びプログラム
JP7656120B2 (ja) 符号化装置、復号装置、及びプログラム
JP2025124883A (ja) デブロッキングフィルタ装置、復号装置、及びプログラム
JP7796810B2 (ja) 復号装置及び復号方法
JP7474772B2 (ja) 符号化装置、復号装置、及びプログラム
JP7357721B2 (ja) デブロッキングフィルタ制御装置及びプログラム
JP7449690B2 (ja) インター予測装置、画像符号化装置、画像復号装置、及びプログラム

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20220225

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20230728

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: 20240402

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20240501

R150 Certificate of patent or registration of utility model

Ref document number: 7483725

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150