MX2023007161A - Refinamiento del vector de movimiento del lado del decodificador multipaso. - Google Patents

Refinamiento del vector de movimiento del lado del decodificador multipaso.

Info

Publication number
MX2023007161A
MX2023007161A MX2023007161A MX2023007161A MX2023007161A MX 2023007161 A MX2023007161 A MX 2023007161A MX 2023007161 A MX2023007161 A MX 2023007161A MX 2023007161 A MX2023007161 A MX 2023007161A MX 2023007161 A MX2023007161 A MX 2023007161A
Authority
MX
Mexico
Prior art keywords
pass
motion vector
block
side motion
vector refinement
Prior art date
Application number
MX2023007161A
Other languages
English (en)
Inventor
Yan Zhang
Marta Karczewicz
Zhi Zhang
Han Huang
Vadim Seregin
Chun-Chi Chen
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 MX2023007161A publication Critical patent/MX2023007161A/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)

Abstract

Se divulgan dispositivos y técnicas de ejemplo para el refinamiento del vector de movimiento del lado del decodificador (DMVR) multipaso. Un dispositivo de ejemplo incluye una memoria configurada para almacenar datos de video y uno o más procesadores acoplados a la memoria. Los uno o más procesadores están configurados para aplicar un DMVR multipaso a un vector de movimiento para un bloque de datos de video para determinar al menos un vector de movimiento refinado y decodificar el bloque con base en al menos un vector de movimiento refinado. El DMVR multipaso incluye un primer paso basado en bloques, un segundo paso basado en subbloques y un tercer paso basado en subbloques.
MX2023007161A 2020-12-22 2021-12-21 Refinamiento del vector de movimiento del lado del decodificador multipaso. MX2023007161A (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
MX2023007161A true MX2023007161A (es) 2023-06-29

Family

ID=79831635

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2023007161A MX2023007161A (es) 2020-12-22 2021-12-21 Refinamiento del vector de movimiento del lado del decodificador multipaso.

Country Status (11)

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

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
CN113545081B (zh) * 2019-03-14 2024-05-31 寰发股份有限公司 视频编解码系统中的处理视频数据的方法以及装置

Also Published As

Publication number Publication date
AU2021409783A1 (en) 2023-05-18
AU2021409783A9 (en) 2024-02-08
WO2022140338A1 (en) 2022-06-30
CA3198095A1 (en) 2022-06-30
JP2023554236A (ja) 2023-12-27
TW202232951A (zh) 2022-08-16
IL301896A (en) 2023-06-01
EP4268468A1 (en) 2023-11-01
KR20230123946A (ko) 2023-08-24
CO2023007958A2 (es) 2023-07-21
CL2023001849A1 (es) 2024-01-05

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