JP2024546895A - ブロックベースビデオ符号化のための符号予測 - Google Patents

ブロックベースビデオ符号化のための符号予測 Download PDF

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Publication number
JP2024546895A
JP2024546895A JP2024535669A JP2024535669A JP2024546895A JP 2024546895 A JP2024546895 A JP 2024546895A JP 2024535669 A JP2024535669 A JP 2024535669A JP 2024535669 A JP2024535669 A JP 2024535669A JP 2024546895 A JP2024546895 A JP 2024546895A
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JP
Japan
Prior art keywords
transform coefficients
candidate
video
code
transform
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.)
Pending
Application number
JP2024535669A
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English (en)
Japanese (ja)
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JP2024546895A5 (enExample
Inventor
シャオユウ シュウ
ニン ヤン
イーウェン チェン
チェウェイ クオ
ウェイ チェン
ホンチェン チュウ
ハン ガオ
シャンリン ワン
ビン ユ
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Beijing Dajia Internet Information Technology Co Ltd
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Beijing Dajia Internet Information Technology Co Ltd
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Filing date
Publication date
Priority claimed from PCT/US2022/040442 external-priority patent/WO2023023039A1/en
Priority claimed from PCT/US2022/043607 external-priority patent/WO2023043885A1/en
Priority claimed from PCT/US2022/049264 external-priority patent/WO2023086330A1/en
Application filed by Beijing Dajia Internet Information Technology Co Ltd filed Critical Beijing Dajia Internet Information Technology Co Ltd
Publication of JP2024546895A publication Critical patent/JP2024546895A/ja
Publication of JP2024546895A5 publication Critical patent/JP2024546895A5/ja
Pending legal-status Critical Current

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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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • 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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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
    • H04N19/124—Quantisation
    • 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
    • H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/18—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 set of transform coefficients
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
JP2024535669A 2021-12-16 2022-12-16 ブロックベースビデオ符号化のための符号予測 Pending JP2024546895A (ja)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
US202163290307P 2021-12-16 2021-12-16
US63/290,307 2021-12-16
USPCT/US2022/040442 2022-08-16
PCT/US2022/040442 WO2023023039A1 (en) 2021-08-17 2022-08-16 Sign prediction for block-based video coding
PCT/US2022/043607 WO2023043885A1 (en) 2021-09-15 2022-09-15 Sign prediction for block-based video coding
USPCT/US2022/043607 2022-09-15
USPCT/US2022/049264 2022-11-08
PCT/US2022/049264 WO2023086330A1 (en) 2021-11-10 2022-11-08 Sign prediction for block-based video coding
PCT/US2022/053150 WO2023114468A1 (en) 2021-12-16 2022-12-16 Sign prediction for block-based video coding

Publications (2)

Publication Number Publication Date
JP2024546895A true JP2024546895A (ja) 2024-12-26
JP2024546895A5 JP2024546895A5 (enExample) 2026-01-06

Family

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Application Number Title Priority Date Filing Date
JP2024535669A Pending JP2024546895A (ja) 2021-12-16 2022-12-16 ブロックベースビデオ符号化のための符号予測

Country Status (5)

Country Link
EP (1) EP4449722A4 (enExample)
JP (1) JP2024546895A (enExample)
KR (1) KR20240125959A (enExample)
MX (1) MX2024007341A (enExample)
WO (1) WO2023114468A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4748078A1 (en) * 2023-07-18 2026-05-27 Tencent America LLC Transform selection for template matching based intra prediction at subblock level

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK2721822T3 (en) * 2011-06-16 2019-02-18 Ge Video Compression Llc Entropy coding of motion vector differences
US9202262B2 (en) * 2014-01-31 2015-12-01 Sony Corporation Optimized method for estimating the dominant gradient direction of a digital image area
US9380312B2 (en) * 2014-07-14 2016-06-28 Apple Inc. Encoding blocks in video frames containing text using histograms of gradients
US20190208225A1 (en) * 2018-01-02 2019-07-04 Qualcomm Incorporated Sign prediction in video coding
WO2019172798A1 (en) * 2018-03-07 2019-09-12 Huawei Technologies Co., Ltd. Method and apparatus for residual sign prediction in transform domain
US11695960B2 (en) * 2019-06-14 2023-07-04 Qualcomm Incorporated Transform and last significant coefficient position signaling for low-frequency non-separable transform in video coding

Also Published As

Publication number Publication date
WO2023114468A1 (en) 2023-06-22
EP4449722A1 (en) 2024-10-23
KR20240125959A (ko) 2024-08-20
MX2024007341A (es) 2024-06-26
EP4449722A4 (en) 2025-12-17

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