WO2019211514A1 - Codage et décodage vidéo - Google Patents

Codage et décodage vidéo Download PDF

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Publication number
WO2019211514A1
WO2019211514A1 PCT/FI2019/050317 FI2019050317W WO2019211514A1 WO 2019211514 A1 WO2019211514 A1 WO 2019211514A1 FI 2019050317 W FI2019050317 W FI 2019050317W WO 2019211514 A1 WO2019211514 A1 WO 2019211514A1
Authority
WO
WIPO (PCT)
Prior art keywords
picture
motion vector
block
prediction
coded
Prior art date
Application number
PCT/FI2019/050317
Other languages
English (en)
Inventor
Ramin GHAZNAVI YOUVALARI
Original Assignee
Nokia Technologies Oy
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
Application filed by Nokia Technologies Oy filed Critical Nokia Technologies Oy
Publication of WO2019211514A1 publication Critical patent/WO2019211514A1/fr

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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
    • H04N19/517—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
    • H04N19/50—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
    • H04N19/597—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding

Abstract

La présente invention concerne divers procédés, appareils et produits-programmes d'ordinateur pour le codage et le décodage vidéo. Dans certains modes de réalisation, un bloc d'échantillons d'une image est obtenu pour une prédiction de mouvement (1402). Un modèle de mise à l'échelle ou de raffinage est dérivé sur la base d'un format de projection de l'image (1400). Un emplacement et une taille du bloc d'échantillons (1404) et un vecteur de mouvement, la taille et l'emplacement d'un bloc de référence du bloc d'échantillons (1406) sont obtenus. Les informations obtenues du bloc de référence et du bloc d'échantillons sont utilisées pour déterminer un facteur de modification (1408), au moins le vecteur de mouvement du bloc de référence étant modifié en utilisant le facteur de modification (1410).
PCT/FI2019/050317 2018-05-02 2019-04-18 Codage et décodage vidéo WO2019211514A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20185406 2018-05-02
FI20185406 2018-05-02

Publications (1)

Publication Number Publication Date
WO2019211514A1 true WO2019211514A1 (fr) 2019-11-07

Family

ID=68385963

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2019/050317 WO2019211514A1 (fr) 2018-05-02 2019-04-18 Codage et décodage vidéo

Country Status (1)

Country Link
WO (1) WO2019211514A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130101040A1 (en) * 2009-10-20 2013-04-25 Thomson Licensing Method for coding a block of a sequence of images and method for reconstructing said block
US20180020238A1 (en) * 2016-07-15 2018-01-18 Mediatek Inc. Method and apparatus for video coding
EP3301643A1 (fr) * 2016-09-30 2018-04-04 Thomson Licensing Procédé et appareil de compensation de mouvement rectifiée pour vidéos omnidirectionnelles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130101040A1 (en) * 2009-10-20 2013-04-25 Thomson Licensing Method for coding a block of a sequence of images and method for reconstructing said block
US20180020238A1 (en) * 2016-07-15 2018-01-18 Mediatek Inc. Method and apparatus for video coding
EP3301643A1 (fr) * 2016-09-30 2018-04-04 Thomson Licensing Procédé et appareil de compensation de mouvement rectifiée pour vidéos omnidirectionnelles

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JIN, G. ET AL.: "Motion estimation and compensation for fisheye warped video", 2015 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP, 27 September 2015 (2015-09-27), pages 2751 - 2755, XP032826972, Retrieved from the Internet <URL:https://ieeexplore.ieee.org/abstract/document/7351303> [retrieved on 20181114], DOI: 10.1109/ICIP.2015.7351303 *
KORDASIEWICZ, R. C. ET AL.: "Affine Motion Prediction Based on Translational Motion Vectors", IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, vol. 17, no. 1 0, 1 October 2007 (2007-10-01), pages 1388 - 1394, XP011193120, Retrieved from the Internet <URL:https://ieeexplore.ieee.org/abstract/document/4318240> [retrieved on 20181130], DOI: 10.1109/TCSVT.2007.903777 *

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