AU2021409783A1 - Multi-pass decoder-side motion vector refinement - Google Patents

Multi-pass decoder-side motion vector refinement Download PDF

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Publication number
AU2021409783A1
AU2021409783A1 AU2021409783A AU2021409783A AU2021409783A1 AU 2021409783 A1 AU2021409783 A1 AU 2021409783A1 AU 2021409783 A AU2021409783 A AU 2021409783A AU 2021409783 A AU2021409783 A AU 2021409783A AU 2021409783 A1 AU2021409783 A1 AU 2021409783A1
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AU
Australia
Prior art keywords
block
pass
sub
video data
motion vector
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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
AU2021409783A
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English (en)
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AU2021409783A9 (en
Inventor
Chun-Chi Chen
Han HUANG
Marta Karczewicz
Vadim Seregin
Yan Zhang
Zhi Zhang
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Qualcomm Inc
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Qualcomm 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
Priority claimed from US17/556,142 external-priority patent/US20220201315A1/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of AU2021409783A1 publication Critical patent/AU2021409783A1/en
Publication of AU2021409783A9 publication Critical patent/AU2021409783A9/en
Pending legal-status Critical Current

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    • 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
    • H04N19/533Motion estimation using multistep search, e.g. 2D-log search or one-at-a-time search [OTS]
    • 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
    • H04N19/136Incoming video signal characteristics or properties
    • H04N19/137Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • 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
    • H04N19/44Decoders 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
    • H04N19/50Methods 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
    • H04N19/56Motion estimation with initialisation of the vector search, e.g. estimating a good candidate to initiate a search
    • 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
    • H04N19/57Motion estimation characterised by a search window with variable size or shape
    • 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
    • H04N19/577Motion compensation with bidirectional frame interpolation, i.e. using B-pictures

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
AU2021409783A 2020-12-22 2021-12-21 Multi-pass decoder-side motion vector refinement Pending AU2021409783A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US202063129221P 2020-12-22 2020-12-22
US63/129,221 2020-12-22
US17/556,142 2021-12-20
US17/556,142 US20220201315A1 (en) 2020-12-22 2021-12-20 Multi-pass decoder-side motion vector refinement
PCT/US2021/064537 WO2022140338A1 (en) 2020-12-22 2021-12-21 Multi-pass decoder-side motion vector refinement

Publications (2)

Publication Number Publication Date
AU2021409783A1 true AU2021409783A1 (en) 2023-05-18
AU2021409783A9 AU2021409783A9 (en) 2024-02-08

Family

ID=79831635

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2021409783A Pending AU2021409783A1 (en) 2020-12-22 2021-12-21 Multi-pass decoder-side motion vector refinement

Country Status (11)

Country Link
EP (1) EP4268468A1 (zh)
JP (1) JP2023554236A (zh)
KR (1) KR20230123946A (zh)
AU (1) AU2021409783A1 (zh)
CA (1) CA3198095A1 (zh)
CL (1) CL2023001849A1 (zh)
CO (1) CO2023007958A2 (zh)
IL (1) IL301896A (zh)
MX (1) MX2023007161A (zh)
TW (1) TW202232951A (zh)
WO (1) WO2022140338A1 (zh)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3560202A4 (en) * 2016-12-27 2020-07-29 MediaTek Inc. METHOD AND DEVICE FOR BILATERAL TEMPLATE MV REFINING FOR VIDEO CODING
US11310526B2 (en) * 2018-01-26 2022-04-19 Mediatek Inc. Hardware friendly constrained motion vector refinement
TWI738248B (zh) * 2019-03-14 2021-09-01 聯發科技股份有限公司 運動細化以及子分區基礎填充的視訊處理的方法以及裝置

Also Published As

Publication number Publication date
AU2021409783A9 (en) 2024-02-08
KR20230123946A (ko) 2023-08-24
CL2023001849A1 (es) 2024-01-05
CO2023007958A2 (es) 2023-07-21
CA3198095A1 (en) 2022-06-30
EP4268468A1 (en) 2023-11-01
TW202232951A (zh) 2022-08-16
IL301896A (en) 2023-06-01
JP2023554236A (ja) 2023-12-27
WO2022140338A1 (en) 2022-06-30
MX2023007161A (es) 2023-06-29

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