JP7824958B2 - 固定されたフィルタを用いる適応ループフィルタ - Google Patents

固定されたフィルタを用いる適応ループフィルタ

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Publication number
JP7824958B2
JP7824958B2 JP2023535712A JP2023535712A JP7824958B2 JP 7824958 B2 JP7824958 B2 JP 7824958B2 JP 2023535712 A JP2023535712 A JP 2023535712A JP 2023535712 A JP2023535712 A JP 2023535712A JP 7824958 B2 JP7824958 B2 JP 7824958B2
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Japan
Prior art keywords
sample
filter
reconstructed
alf
video
Prior art date
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Active
Application number
JP2023535712A
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English (en)
Japanese (ja)
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JP2024501465A (ja
JP2024501465A5 (https=
JPWO2022140567A5 (https=
Inventor
カルチェビチ、マルタ
フー、ナン
セレジン、バディム
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.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
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Filing date
Publication date
Priority claimed from US17/557,706 external-priority patent/US11778177B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of JP2024501465A publication Critical patent/JP2024501465A/ja
Publication of JP2024501465A5 publication Critical patent/JP2024501465A5/ja
Publication of JPWO2022140567A5 publication Critical patent/JPWO2022140567A5/ja
Application granted granted Critical
Publication of JP7824958B2 publication Critical patent/JP7824958B2/ja
Active legal-status Critical Current
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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
    • H04N19/102—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
    • H04N19/169—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
    • H04N19/70—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
JP2023535712A 2020-12-23 2021-12-22 固定されたフィルタを用いる適応ループフィルタ Active JP7824958B2 (ja)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US202063130275P 2020-12-23 2020-12-23
US63/130,275 2020-12-23
US202163148538P 2021-02-11 2021-02-11
US63/148,538 2021-02-11
US17/557,706 2021-12-21
US17/557,706 US11778177B2 (en) 2020-12-23 2021-12-21 Adaptive loop filter with fixed filters
PCT/US2021/064898 WO2022140567A1 (en) 2020-12-23 2021-12-22 Adaptive loop filter with fixed filters

Publications (4)

Publication Number Publication Date
JP2024501465A JP2024501465A (ja) 2024-01-12
JP2024501465A5 JP2024501465A5 (https=) 2024-12-04
JPWO2022140567A5 JPWO2022140567A5 (https=) 2024-12-04
JP7824958B2 true JP7824958B2 (ja) 2026-03-05

Family

ID=80001446

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Application Number Title Priority Date Filing Date
JP2023535712A Active JP7824958B2 (ja) 2020-12-23 2021-12-22 固定されたフィルタを用いる適応ループフィルタ

Country Status (5)

Country Link
EP (1) EP4268458A1 (https=)
JP (1) JP7824958B2 (https=)
KR (1) KR20230123947A (https=)
TW (1) TW202234886A (https=)
WO (1) WO2022140567A1 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120530624A (zh) * 2023-02-05 2025-08-22 北京达佳互联信息技术有限公司 用于自适应环路滤波器和跨分量自适应环路滤波器的方法和装置
WO2025058205A1 (ko) * 2023-09-12 2025-03-20 삼성전자 주식회사 적응적 루프 필터링을 위한 영상 복호화 방법, 영상 복호화 장치, 영상 부호화 방법, 및 영상 부호화 장치
WO2025249811A1 (ko) * 2024-05-30 2025-12-04 삼성전자 주식회사 영상의 적응적 필터링 장치 및 방법

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017142943A1 (en) 2016-02-15 2017-08-24 Qualcomm Incorporated Predicting filter coefficients from fixed filters for video coding
US20180160116A1 (en) 2015-06-18 2018-06-07 Lg Electronics Inc. Image filtering method and device in image coding system
WO2019089695A1 (en) 2017-11-01 2019-05-09 Vid Scale, Inc. Methods for simplifying adaptive loop filter in video coding
WO2019182159A1 (ja) 2018-03-23 2019-09-26 シャープ株式会社 画像フィルタ装置、画像復号装置、及び画像符号化装置
WO2020182620A1 (en) 2019-03-08 2020-09-17 Canon Kabushiki Kaisha An adaptive loop filter
WO2020211810A1 (en) 2019-04-16 2020-10-22 Beijing Bytedance Network Technology Co., Ltd. On adaptive loop filtering for video coding

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180160116A1 (en) 2015-06-18 2018-06-07 Lg Electronics Inc. Image filtering method and device in image coding system
WO2017142943A1 (en) 2016-02-15 2017-08-24 Qualcomm Incorporated Predicting filter coefficients from fixed filters for video coding
WO2019089695A1 (en) 2017-11-01 2019-05-09 Vid Scale, Inc. Methods for simplifying adaptive loop filter in video coding
WO2019182159A1 (ja) 2018-03-23 2019-09-26 シャープ株式会社 画像フィルタ装置、画像復号装置、及び画像符号化装置
WO2020182620A1 (en) 2019-03-08 2020-09-17 Canon Kabushiki Kaisha An adaptive loop filter
WO2020211810A1 (en) 2019-04-16 2020-10-22 Beijing Bytedance Network Technology Co., Ltd. On adaptive loop filtering for video coding

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Yao-Jen Chang, et al.，Compression efficiency methods beyond VVC，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29，JVET-U0100，21st Meeting, by teleconference，2020年12月，pp.1-13

Also Published As

Publication number Publication date
JP2024501465A (ja) 2024-01-12
TW202234886A (zh) 2022-09-01
WO2022140567A1 (en) 2022-06-30
EP4268458A1 (en) 2023-11-01
KR20230123947A (ko) 2023-08-24

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