WO2020070730A3 - Size restriction based on affine motion information - Google Patents

Size restriction based on affine motion information Download PDF

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Publication number
WO2020070730A3
WO2020070730A3 PCT/IB2019/058516 IB2019058516W WO2020070730A3 WO 2020070730 A3 WO2020070730 A3 WO 2020070730A3 IB 2019058516 W IB2019058516 W IB 2019058516W WO 2020070730 A3 WO2020070730 A3 WO 2020070730A3
Authority
WO
WIPO (PCT)
Prior art keywords
motion information
sub
video
coding
affine motion
Prior art date
Application number
PCT/IB2019/058516
Other languages
French (fr)
Other versions
WO2020070730A2 (en
Inventor
Hongbin Liu
Li Zhang
Kai Zhang
Yue Wang
Original Assignee
Beijing Bytedance Network Technology Co., Ltd.
Bytedance Inc.
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 Beijing Bytedance Network Technology Co., Ltd., Bytedance Inc. filed Critical Beijing Bytedance Network Technology Co., Ltd.
Publication of WO2020070730A2 publication Critical patent/WO2020070730A2/en
Publication of WO2020070730A3 publication Critical patent/WO2020070730A3/en

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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
    • H04N19/50—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
    • H04N19/513—Processing of motion vectors
    • 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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • 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
    • H04N19/156—Availability of hardware or computational resources, e.g. encoding based on power-saving criteria
    • 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
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • 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
    • H04N19/184—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
    • H04N19/50—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
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • 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
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Devices, systems and methods for digital video coding, which includes memory bandwidth reductions for sub-block coding tools, are described. An exemplary method for video coding includes determining, for a conversion in an affine mode between a coding unit of a video and a bitstream representation of the video, a sub-block size based on information associated with the coding unit. The method also includes performing the conversion in the affine mode based on the sub-block size.
PCT/IB2019/058516 2018-10-06 2019-10-07 Size restriction based on affine motion information WO2020070730A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNPCT/CN2018/109255 2018-10-06
CN2018109255 2018-10-06

Publications (2)

Publication Number Publication Date
WO2020070730A2 WO2020070730A2 (en) 2020-04-09
WO2020070730A3 true WO2020070730A3 (en) 2020-05-14

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/IB2019/058516 WO2020070730A2 (en) 2018-10-06 2019-10-07 Size restriction based on affine motion information
PCT/IB2019/058515 WO2020070729A1 (en) 2018-10-06 2019-10-07 Size restriction based on motion information

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/IB2019/058515 WO2020070729A1 (en) 2018-10-06 2019-10-07 Size restriction based on motion information

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CN (2) CN111010580B (en)
WO (2) WO2020070730A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114073090A (en) * 2019-07-01 2022-02-18 交互数字Vc控股法国公司 Affine motion compensated bi-directional optical flow refinement
EP4258665A1 (en) * 2022-04-07 2023-10-11 Beijing Xiaomi Mobile Software Co., Ltd. Encoding/decoding video picture data

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3291557A1 (en) * 2015-05-15 2018-03-07 Huawei Technologies Co., Ltd. Video image coding and decoding method, coding device and decoding device

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Publication number Priority date Publication date Assignee Title
US10244253B2 (en) * 2013-09-13 2019-03-26 Qualcomm Incorporated Video coding techniques using asymmetric motion partitioning
US10958927B2 (en) * 2015-03-27 2021-03-23 Qualcomm Incorporated Motion information derivation mode determination in video coding
CN108965871B (en) * 2015-09-29 2023-11-10 华为技术有限公司 Image prediction method and device
WO2017118411A1 (en) * 2016-01-07 2017-07-13 Mediatek Inc. Method and apparatus for affine inter prediction for video coding system
US10368083B2 (en) * 2016-02-15 2019-07-30 Qualcomm Incorporated Picture order count based motion vector pruning
US10701390B2 (en) * 2017-03-14 2020-06-30 Qualcomm Incorporated Affine motion information derivation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3291557A1 (en) * 2015-05-15 2018-03-07 Huawei Technologies Co., Ltd. Video image coding and decoding method, coding device and decoding device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHEN (HUAWEI) H ET AL: "CE4-related: Reducing worst case memory bandwidth in inter prediction", no. JVET-L0371, 2 October 2018 (2018-10-02), XP030194323, Retrieved from the Internet <URL:http://phenix.int-evry.fr/jvet/doc_end_user/documents/12_Macao/wg11/JVET-L0371-v2.zip JVET-L0371-v2.docx> [retrieved on 20181002] *
PHAM VAN (QUALCOMM) L ET AL: "CE4-related: Affine restrictions for the worst-case bandwidth reduction", no. JVET-L0396, 2 October 2018 (2018-10-02), XP030194328, Retrieved from the Internet <URL:http://phenix.int-evry.fr/jvet/doc_end_user/documents/12_Macao/wg11/JVET-L0396-v5.zip JVET-L0396 - v5.docx> [retrieved on 20181002] *

Also Published As

Publication number Publication date
CN111010580A (en) 2020-04-14
CN111010580B (en) 2023-08-18
CN111010570B (en) 2023-03-03
CN111010570A (en) 2020-04-14
WO2020070729A1 (en) 2020-04-09
WO2020070730A2 (en) 2020-04-09

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