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1. WO2020113051 - DECODER-SIDE MOTION VECTOR REFINEMENT

Publication Number WO/2020/113051
Publication Date 04.06.2020
International Application No. PCT/US2019/063673
International Filing Date 27.11.2019
IPC
H04N 19/105 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
105Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
H04N 19/577 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
577Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
H04N 19/80 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
80Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
H04N 19/51 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
H04N 19/523 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
523with sub-pixel accuracy
H04N 19/563 2014.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
563Motion estimation with padding, i.e. with filling of non-object values in an arbitrarily shaped picture block or region for estimation purposes
CPC
H04N 19/117
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
117Filters, e.g. for pre-processing or post-processing
H04N 19/139
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
134characterised by the element, parameter or criterion affecting or controlling the adaptive coding
136Incoming video signal characteristics or properties
137Motion inside a coding unit, e.g. average field, frame or block difference
139Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
H04N 19/176
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised 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
17the unit being an image region, e.g. an object
176the region being a block, e.g. a macroblock
H04N 19/44
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
44Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
H04N 19/51
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
H04N 19/521
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
513Processing of motion vectors
521for 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
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • CHEN, Chun-Chi
  • CHIEN, Wei-Jung
  • HUNG, Chao-Hsiung
  • KARCZEWICZ, Marta
Agents
  • DAWLEY, Brian R.
Priority Data
16/695,90726.11.2019US
62/771,96027.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DECODER-SIDE MOTION VECTOR REFINEMENT
(FR) AFFINAGE DE VECTEUR DE MOUVEMENT CÔTÉ DÉCODEUR
Abstract
(EN)
A video coding device, such as a video encoder or video decoder, may determine that a block of video data has at least one of a width less than 8 pixels, a height less than 8 pixels, or the width and the height being equal to 8 pixels; in response, determine that the block is not coded using decoder-side motion vector refinement (DMVR); and code the block without performing DMVR for the block. The video coding device may determine that a second block of video data has a size of at least 8xN or Nx8, wherein N is an integer value greater than 8, in response to determining that the second block of video data has the size of at least 8xN or Nx8, and then determine whether to code the second block using DMVR.
(FR)
Un dispositif de codage vidéo, tel qu'un codeur vidéo ou un décodeur vidéo, peut déterminer qu'un bloc de données vidéo a une largeur inférieure à 8 pixels, une hauteur inférieure à 8 pixels, ou la largeur et la hauteur étant égales à 8 pixels; en réponse, déterminer que le bloc n'est pas codé à l'aide d'un affinage de vecteur de mouvement côté décodeur (DMVR); et coder le bloc sans effectuer de DMVR pour le bloc. Le dispositif de codage vidéo peut déterminer qu'un second bloc de données vidéo a une taille d'au moins 8 xN ou Nx8, N étant une valeur d'entier supérieur à 8, en réponse à la détermination du fait que le second bloc de données vidéo a la taille d'au moins 8 xN ou Nx8, et ensuite déterminer s'il faut coder le second bloc à l'aide de DMVR.
Also published as
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