CO2023017540A2 - Adaptive bilateral comparison for decoder-side motion vector refinement - Google Patents

Adaptive bilateral comparison for decoder-side motion vector refinement

Info

Publication number
CO2023017540A2
CO2023017540A2 CONC2023/0017540A CO2023017540A CO2023017540A2 CO 2023017540 A2 CO2023017540 A2 CO 2023017540A2 CO 2023017540 A CO2023017540 A CO 2023017540A CO 2023017540 A2 CO2023017540 A2 CO 2023017540A2
Authority
CO
Colombia
Prior art keywords
motion vector
decoder
mode candidate
side motion
video data
Prior art date
Application number
CONC2023/0017540A
Other languages
Spanish (es)
Inventor
Marta Karczewicz
Vadim Seregin
Han Huang
Wei-Jung Chien
Zhi Zhang
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 US17/847,942 external-priority patent/US11895302B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of CO2023017540A2 publication Critical patent/CO2023017540A2/en

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
    • H04N19/513—Processing of motion vectors
    • H04N19/521—Processing of motion vectors for estimating the reliability of the determined motion vectors or motion vector field, e.g. for smoothing the motion vector field or for correcting 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
    • H04N19/50—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
    • H04N19/10—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
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Landscapes

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

Abstract

RESUMEN Se proporcionan sistemas y técnicas para procesar datos de video. Por ejemplo, los sistemas y técnicas pueden incluir obtener una imagen actual de datos de video y obtener imágenes de referencia para la imagen actual a partir de datos de video. Se puede determinar un candidato de modo de fusión para la imagen actual. Se pueden identificar un primer y segundo vectores de movimiento para el candidato de modo de fusión. Se puede seleccionar una estrategia de búsqueda de vector de movimiento para el candidato de modo de fusión de una pluralidad de estrategias de búsqueda de vector de movimiento. La estrategia de búsqueda de vector de movimiento seleccionada puede asociarse con una o más restricciones correspondientes a al menos uno del primer vector de movimiento o el segundo vector de movimiento. La estrategia de búsqueda de vector de movimiento seleccionada se puede utilizar para determinar vectores de movimiento refinados en función del primer vector de movimiento, el segundo vector de movimiento, y las imágenes de referencia. El candidato de modo de fusión se puede procesar mediante el uso de los vectores de movimiento refinados.SUMMARY Systems and techniques for processing video data are provided. For example, the systems and techniques may include obtaining a current image from video data and obtaining reference images for the current image from video data. A blend mode candidate can be determined for the current image. A first and second motion vector can be identified for the fusion mode candidate. A motion vector search strategy for the fusion mode candidate may be selected from a plurality of motion vector search strategies. The selected motion vector search strategy may be associated with one or more constraints corresponding to at least one of the first motion vector or the second motion vector. The selected motion vector search strategy can be used to determine refined motion vectors based on the first motion vector, the second motion vector, and the reference images. The fusion mode candidate can be processed by using the refined motion vectors.

CONC2023/0017540A 2021-06-29 2023-12-15 Adaptive bilateral comparison for decoder-side motion vector refinement CO2023017540A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202163216468P 2021-06-29 2021-06-29
US202163263754P 2021-11-08 2021-11-08
US17/847,942 US11895302B2 (en) 2021-06-29 2022-06-23 Adaptive bilateral matching for decoder side motion vector refinement
PCT/US2022/073155 WO2023278964A1 (en) 2021-06-29 2022-06-24 Adaptive bilateral matching for decoder side motion vector refinement

Publications (1)

Publication Number Publication Date
CO2023017540A2 true CO2023017540A2 (en) 2023-12-20

Family

ID=82701841

Family Applications (1)

Application Number Title Priority Date Filing Date
CONC2023/0017540A CO2023017540A2 (en) 2021-06-29 2023-12-15 Adaptive bilateral comparison for decoder-side motion vector refinement

Country Status (10)

Country Link
EP (1) EP4364418A1 (en)
KR (1) KR20240026140A (en)
AU (1) AU2022303514A1 (en)
BR (1) BR112023027261A2 (en)
CA (1) CA3216820A1 (en)
CL (1) CL2023003553A1 (en)
CO (1) CO2023017540A2 (en)
IL (1) IL307644A (en)
TW (1) TW202308389A (en)
WO (1) WO2023278964A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220417521A1 (en) * 2021-06-25 2022-12-29 Qualcomm Incorporated Hybrid inter bi-prediction in video coding

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020185427A1 (en) * 2019-03-11 2020-09-17 Alibaba Group Holding Limited Inter prediction methods for coding video data

Also Published As

Publication number Publication date
TW202308389A (en) 2023-02-16
BR112023027261A2 (en) 2024-03-12
CL2023003553A1 (en) 2024-04-26
IL307644A (en) 2023-12-01
KR20240026140A (en) 2024-02-27
CA3216820A1 (en) 2023-01-05
WO2023278964A1 (en) 2023-01-05
EP4364418A1 (en) 2024-05-08
AU2022303514A1 (en) 2023-11-02

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