JP6912642B2 - 画像復号装置、画像復号方法及びプログラム - Google Patents

画像復号装置、画像復号方法及びプログラム Download PDF

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Publication number
JP6912642B2
JP6912642B2 JP2020191512A JP2020191512A JP6912642B2 JP 6912642 B2 JP6912642 B2 JP 6912642B2 JP 2020191512 A JP2020191512 A JP 2020191512A JP 2020191512 A JP2020191512 A JP 2020191512A JP 6912642 B2 JP6912642 B2 JP 6912642B2
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Prior art keywords
signal
value
threshold value
filter
image decoding
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JP2020191512A
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Japanese (ja)
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JP2021040329A5 (https=
JP2021040329A (ja
Inventor
恭平 海野
恭平 海野
圭 河村
圭 河村
内藤　整
整 内藤
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KDDI Corp
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KDDI Corp
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Priority claimed from JP2019114961A external-priority patent/JP6811931B2/ja
Priority to JP2020191512A priority Critical patent/JP6912642B2/ja
Application filed by KDDI Corp filed Critical KDDI Corp
Priority to US17/187,025 priority patent/US11412219B2/en
Publication of JP2021040329A publication Critical patent/JP2021040329A/ja
Publication of JP2021040329A5 publication Critical patent/JP2021040329A5/ja
Priority to JP2021112920A priority patent/JP6941752B1/ja
Publication of JP6912642B2 publication Critical patent/JP6912642B2/ja
Application granted granted Critical
Priority to JP2021144756A priority patent/JP7320573B2/ja
Priority to US17/855,218 priority patent/US11949860B2/en
Priority to JP2023120159A priority patent/JP7485838B2/ja
Priority to US18/596,513 priority patent/US12238282B2/en
Priority to US19/023,908 priority patent/US20250159155A1/en
Priority to US19/023,983 priority patent/US20260039814A1/en
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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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • 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
    • H04N19/184—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 bits, e.g. of the compressed video stream
    • 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
JP2020191512A 2019-06-20 2020-11-18 画像復号装置、画像復号方法及びプログラム Active JP6912642B2 (ja)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP2020191512A JP6912642B2 (ja) 2019-06-20 2020-11-18 画像復号装置、画像復号方法及びプログラム
US17/187,025 US11412219B2 (en) 2019-06-20 2021-02-26 Image decoding device, image decoding method, and program
JP2021112920A JP6941752B1 (ja) 2020-11-18 2021-07-07 画像復号装置、画像復号方法及びプログラム
JP2021144756A JP7320573B2 (ja) 2020-11-18 2021-09-06 画像復号装置、画像復号方法及びプログラム
US17/855,218 US11949860B2 (en) 2019-06-20 2022-06-30 Image decoding device, image decoding method, and program
JP2023120159A JP7485838B2 (ja) 2020-11-18 2023-07-24 画像復号装置、画像復号方法及びプログラム
US18/596,513 US12238282B2 (en) 2019-06-20 2024-03-05 Image decoding device, image decoding method, and program
US19/023,908 US20250159155A1 (en) 2019-06-20 2025-01-16 Image decoding device, image decoding method, and program
US19/023,983 US20260039814A1 (en) 2019-06-20 2025-01-16 Image decoding device, image decoding method, and program

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019114961A JP6811931B2 (ja) 2019-06-20 2019-06-20 画像復号装置、画像復号方法及びプログラム
JP2020191512A JP6912642B2 (ja) 2019-06-20 2020-11-18 画像復号装置、画像復号方法及びプログラム

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JP2019114961A Division JP6811931B2 (ja) 2019-06-20 2019-06-20 画像復号装置、画像復号方法及びプログラム

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JP2021112920A Division JP6941752B1 (ja) 2020-11-18 2021-07-07 画像復号装置、画像復号方法及びプログラム

Publications (3)

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JP2021040329A JP2021040329A (ja) 2021-03-11
JP2021040329A5 JP2021040329A5 (https=) 2021-04-22
JP6912642B2 true JP6912642B2 (ja) 2021-08-04

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US (5) US11412219B2 (https=)
JP (1) JP6912642B2 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11924415B2 (en) * 2021-05-11 2024-03-05 Tencent America LLC Method and apparatus for boundary handling in video coding

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200236381A1 (en) * 2017-09-28 2020-07-23 Sharp Kabushiki Kaisha Value limiting filter apparatus, video coding apparatus, and video decoding apparatus
GB2580173B (en) * 2018-12-21 2022-07-27 Canon Kk A filter
US11356662B2 (en) * 2019-05-21 2022-06-07 Qualcomm Incorporated Simplification of clipping value calculation for adaptive loop filters

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Publication number Publication date
US11949860B2 (en) 2024-04-02
US20240214568A1 (en) 2024-06-27
US20210185315A1 (en) 2021-06-17
US20260039814A1 (en) 2026-02-05
JP2021040329A (ja) 2021-03-11
US11412219B2 (en) 2022-08-09
US12238282B2 (en) 2025-02-25
US20250159155A1 (en) 2025-05-15
US20220337826A1 (en) 2022-10-20

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