EP4449722A4 - Character prediction for block-based video coding - Google Patents

Character prediction for block-based video coding

Info

Publication number
EP4449722A4
EP4449722A4 EP22908485.0A EP22908485A EP4449722A4 EP 4449722 A4 EP4449722 A4 EP 4449722A4 EP 22908485 A EP22908485 A EP 22908485A EP 4449722 A4 EP4449722 A4 EP 4449722A4
Authority
EP
European Patent Office
Prior art keywords
block
video coding
based video
sign prediction
prediction
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
EP22908485.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4449722A1 (en
Inventor
Xiaoyu Xiu
Ning Yan
Yi-Wen Chen
Che-Wei Kuo
Wei Chen
Hong-Jheng Jhu
Han Gao
Xianglin Wang
Bing Yu
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.)
Beijing Dajia Internet Information Technology Co Ltd
Original Assignee
Beijing Dajia Internet Information Technology Co Ltd
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 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 EP4449722A1 publication Critical patent/EP4449722A1/en
Publication of EP4449722A4 publication Critical patent/EP4449722A4/en
Pending 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
    • H04N19/60—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)
EP22908485.0A 2021-12-16 2022-12-16 Character prediction for block-based video coding Pending EP4449722A4 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US202163290307P 2021-12-16 2021-12-16
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
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
EP4449722A1 EP4449722A1 (en) 2024-10-23
EP4449722A4 true EP4449722A4 (en) 2025-12-17

Family

ID=86773504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22908485.0A Pending EP4449722A4 (en) 2021-12-16 2022-12-16 Character prediction for block-based video coding

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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019135930A1 (en) * 2018-01-02 2019-07-11 Qualcomm Incorporated Sign prediction in video coding
WO2019172802A1 (en) * 2018-03-07 2019-09-12 Huawei Technologies Co., Ltd Signaling residual signs predicted in transform domain

Family Cites Families (4)

* 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
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019135930A1 (en) * 2018-01-02 2019-07-11 Qualcomm Incorporated Sign prediction in video coding
WO2019172802A1 (en) * 2018-03-07 2019-09-12 Huawei Technologies Co., Ltd Signaling residual signs predicted in transform domain

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ALSHIN A ET AL: "Description of SDR, HDR and 360� video coding technology proposal by Samsung, Huawei, GoPro, and HiSilicon "" mobile application scenario", 10. JVET MEETING; 10-4-2018 - 20-4-2018; SAN DIEGO; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ); URL: HTTP://PHENIX.INT-EVRY.FR/JVET/,, no. JVET-J0024-v5, 14 April 2018 (2018-04-14), XP030151190 *
HENRY F ET AL: "Residual Coefficient Sign Prediction", 4. JVET MEETING; 15-10-2016 - 21-10-2016; CHENGDU; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ); URL: HTTP://PHENIX.INT-EVRY.FR/JVET/,, no. JVET-D0031-v4, 20 October 2016 (2016-10-20), XP030150258 *
See also references of WO2023114468A1 *

Also Published As

Publication number Publication date
JP2024546895A (ja) 2024-12-26
WO2023114468A1 (en) 2023-06-22
EP4449722A1 (en) 2024-10-23
KR20240125959A (ko) 2024-08-20
MX2024007341A (es) 2024-06-26

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