CO2023007958A2 - Refinamiento del vector de movimiento del lado del decodificador de pases múltiples - Google Patents

Refinamiento del vector de movimiento del lado del decodificador de pases múltiples

Info

Publication number
CO2023007958A2
CO2023007958A2 CONC2023/0007958A CO2023007958A CO2023007958A2 CO 2023007958 A2 CO2023007958 A2 CO 2023007958A2 CO 2023007958 A CO2023007958 A CO 2023007958A CO 2023007958 A2 CO2023007958 A2 CO 2023007958A2
Authority
CO
Colombia
Prior art keywords
motion vector
pass
block
refinement
dmvr
Prior art date
Application number
CONC2023/0007958A
Other languages
English (en)
Spanish (es)
Inventor
Vadim Seregin
Marta Karczewicz
Han Huang
Chun-Chi Chen
Yan Zhang
Zhi Zhang
Original Assignee
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/US12113987B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of CO2023007958A2 publication Critical patent/CO2023007958A2/es

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
    • H04N19/50—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
    • H04N19/533—Motion estimation using multistep search, e.g. 2D-log search or one-at-a-time search [OTS]
    • 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
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/56—Motion estimation with initialisation of the vector search, e.g. estimating a good candidate to initiate a search
    • 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
    • H04N19/57—Motion estimation characterised by a search window with variable size or shape
    • 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)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CONC2023/0007958A 2020-12-22 2023-06-20 Refinamiento del vector de movimiento del lado del decodificador de pases múltiples CO2023007958A2 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202063129221P 2020-12-22 2020-12-22
US17/556,142 US12113987B2 (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 (1)

Publication Number Publication Date
CO2023007958A2 true CO2023007958A2 (es) 2023-07-21

Family

ID=79831635

Family Applications (1)

Application Number Title Priority Date Filing Date
CONC2023/0007958A CO2023007958A2 (es) 2020-12-22 2023-06-20 Refinamiento del vector de movimiento del lado del decodificador de pases múltiples

Country Status (11)

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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110140355B (zh) * 2016-12-27 2022-03-08 联发科技股份有限公司 用于视频编解码的双向模板运动向量微调的方法及装置
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
JP2023554236A (ja) 2023-12-27
CA3198095A1 (en) 2022-06-30
WO2022140338A1 (en) 2022-06-30
CL2023001849A1 (es) 2024-01-05
MX2023007161A (es) 2023-06-29
EP4268468A1 (en) 2023-11-01
AU2021409783A1 (en) 2023-05-18
TW202232951A (zh) 2022-08-16
AU2021409783A9 (en) 2024-02-08
KR20230123946A (ko) 2023-08-24
IL301896A (en) 2023-06-01

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