CA3131692A1 - Determination of block vector for a block in a region of a coding tree block - Google Patents

Determination of block vector for a block in a region of a coding tree block Download PDF

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Publication number
CA3131692A1
CA3131692A1 CA3131692A CA3131692A CA3131692A1 CA 3131692 A1 CA3131692 A1 CA 3131692A1 CA 3131692 A CA3131692 A CA 3131692A CA 3131692 A CA3131692 A CA 3131692A CA 3131692 A1 CA3131692 A1 CA 3131692A1
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CA
Canada
Prior art keywords
current
ctb
region
block
previously reconstructed
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
CA3131692A
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English (en)
French (fr)
Inventor
Xiaozhong Xu
Shan Liu
Xiang Li
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.)
Tencent America LLC
Original Assignee
Tencent America LLC
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Filing date
Publication date
Priority claimed from US16/528,148 external-priority patent/US11172236B2/en
Application filed by Tencent America LLC filed Critical Tencent America LLC
Publication of CA3131692A1 publication Critical patent/CA3131692A1/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134Methods 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
    • H04N19/157Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/103Selection of coding mode or of prediction mode
    • H04N19/105Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/12Selection 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
    • H04N19/122Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/132Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169Methods 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
    • H04N19/17Methods 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
    • H04N19/176Methods 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
    • H04N19/55Motion estimation with spatial constraints, e.g. at image or region borders
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96Tree coding, e.g. quad-tree coding

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)
CA3131692A 2019-03-09 2020-03-04 Determination of block vector for a block in a region of a coding tree block Pending CA3131692A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201962816125P 2019-03-09 2019-03-09
US62/816,125 2019-03-09
US16/528,148 US11172236B2 (en) 2018-09-21 2019-07-31 Method and apparatus for video decoding that defines a search range for a reference block indicated by a block vector
US16/528,148 2019-07-31
PCT/US2020/020999 WO2020185466A1 (en) 2019-03-09 2020-03-04 Method and apparatus for video coding

Publications (1)

Publication Number Publication Date
CA3131692A1 true CA3131692A1 (en) 2020-09-17

Family

ID=72427099

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3131692A Pending CA3131692A1 (en) 2019-03-09 2020-03-04 Determination of block vector for a block in a region of a coding tree block

Country Status (8)

Country Link
EP (1) EP3769534A4 (zh)
JP (1) JP7267404B2 (zh)
KR (1) KR102603451B1 (zh)
CN (3) CN114666602B (zh)
AU (1) AU2020238668B2 (zh)
CA (1) CA3131692A1 (zh)
SG (1) SG11202109622QA (zh)
WO (1) WO2020185466A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11722658B2 (en) * 2021-06-25 2023-08-08 Tencent America LLC Method and apparatus for video coding
KR20230175110A (ko) * 2022-06-22 2023-12-29 현대자동차주식회사 메타 정보를 이용하는 비디오 코딩방법 및 장치

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9838692B2 (en) * 2011-10-18 2017-12-05 Qualcomm Incorporated Detecting availabilities of neighboring video units for video coding
CN105659602B (zh) * 2013-10-14 2019-10-08 微软技术许可有限责任公司 用于视频和图像编码的帧内块复制预测模式的编码器侧选项
KR102170169B1 (ko) * 2013-10-14 2020-10-26 마이크로소프트 테크놀로지 라이센싱, 엘엘씨 비디오 및 이미지 코딩 및 디코딩을 위한 인트라 블록 카피 예측 모드의 피쳐
US11284103B2 (en) * 2014-01-17 2022-03-22 Microsoft Technology Licensing, Llc Intra block copy prediction with asymmetric partitions and encoder-side search patterns, search ranges and approaches to partitioning
US9621917B2 (en) * 2014-03-10 2017-04-11 Euclid Discoveries, Llc Continuous block tracking for temporal prediction in video encoding
US10477232B2 (en) * 2014-03-21 2019-11-12 Qualcomm Incorporated Search region determination for intra block copy in video coding
US10327001B2 (en) * 2014-06-19 2019-06-18 Qualcomm Incorporated Systems and methods for intra-block copy
CN111432220B (zh) * 2014-06-19 2022-05-06 Vid拓展公司 采用块向量导出的帧内块复制编码的方法和系统
EP3152906B1 (en) * 2014-07-07 2021-06-16 HFI Innovation Inc. Method of intra block copy search and compensation range
EP3180916A4 (en) * 2014-09-03 2018-02-28 MediaTek Inc. Method for color index coding using a generalized copy previous mode
US10212445B2 (en) * 2014-10-09 2019-02-19 Qualcomm Incorporated Intra block copy prediction restrictions for parallel processing
US9955185B2 (en) * 2015-02-12 2018-04-24 Mediatek Inc. Method and apparatus of constrained intra block copy for coding video
US10834419B2 (en) * 2016-04-13 2020-11-10 Qualcomm Incorporated Conformance constraint for collocated reference index in video coding
US10582209B2 (en) * 2017-03-30 2020-03-03 Mediatek Inc. Sub-prediction unit temporal motion vector prediction (sub-PU TMVP) for video coding
US10904559B2 (en) * 2018-07-13 2021-01-26 Tencent America LLC Block vector prediction in intra block copy mode
US10701385B1 (en) * 2019-01-13 2020-06-30 Tencent America LLC Method and apparatus for reference sample memory reuse for intra picture block compensation

Also Published As

Publication number Publication date
JP2021521757A (ja) 2021-08-26
CN114666607A (zh) 2022-06-24
KR102603451B1 (ko) 2023-11-20
CN114666602A (zh) 2022-06-24
AU2020238668A1 (en) 2021-09-30
AU2020238668B2 (en) 2023-02-23
WO2020185466A1 (en) 2020-09-17
CN111989929B (zh) 2022-03-22
SG11202109622QA (en) 2021-10-28
KR20200121369A (ko) 2020-10-23
EP3769534A1 (en) 2021-01-27
EP3769534A4 (en) 2021-12-15
CN111989929A (zh) 2020-11-24
JP7267404B2 (ja) 2023-05-01
CN114666602B (zh) 2024-06-14
CN114666608A (zh) 2022-06-24

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