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1. WO2017162912 - AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING

Publication Number WO/2017/162912
Publication Date 28.09.2017
International Application No. PCT/FI2017/050180
International Filing Date 17.03.2017
IPC
H04N 19/55 2014.1
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
55Motion estimation with spatial constraints, e.g. at image or region borders
H04N 19/563 2014.1
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
H04N 13/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
13Stereoscopic video systems; Multi-view video systems; Details thereof
H04N 19/70 2014.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
70characterised by syntax aspects related to video coding, e.g. related to compression standards
CPC
H04N 13/15
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
13Stereoscopic video systems; Multi-view video systems; Details thereof
10Processing, recording or transmission of stereoscopic or multi-view image signals
106Processing image signals
15for colour aspects of image signals
H04N 13/161
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
13Stereoscopic video systems; Multi-view video systems; Details thereof
10Processing, recording or transmission of stereoscopic or multi-view image signals
106Processing image signals
161Encoding, multiplexing or demultiplexing different image signal components
H04N 19/159
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
157Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
159Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
H04N 19/172
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
172the region being a picture, frame or field
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 19/55
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
55Motion estimation with spatial constraints, e.g. at image or region borders
Applicants
  • NOKIA TECHNOLOGIES OY [FI]/[FI]
Inventors
  • HANNUKSELA, Miska
Agents
  • NOKIA TECHNOLOGIES OY
  • UUSITALO, Arttu
Priority Data
2016525624.03.2016FI
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING
(FR) APPAREIL, PROCÉDÉ ET PROGRAMME INFORMATIQUE PERMETTANT LE CODAGE ET LE DÉCODAGE VIDÉO
Abstract
(EN)
There is provided a method comprising encoding an uncompressed constituent frame into a first encoded picture, said encoding also resulting into a reconstructed first picture and said constituent frame having an effective picture area within the first reconstructed picture, performing either of the following as a part of said encoding: inserting at least one sample value outside the effective picture area to form a boundary extension for the constituent frame in the reconstructed first picture; or saturating or wrapping oversample locations outside the effective picture area to be within the effective picture area. There is also provided a method comprising receiving an encoded picture, decoding the encoded picture to form a reconstructed constituent frame of the picture having an effective picture area;and performing either of the following: filling an area outside the effective picture area to produce a padded reference picture, wherein the filled area forms a boundary extension; or determining that when referring to sample locations outside the effective picture area in decoding, said sample locations are saturated or wrapped over to be within the effective picture area.
(FR)
L'invention concerne un procédé consistant à coder une trame constitutive non comprimée pour obtenir une première image codée, ledit codage donnant également une première image reconstruite et ladite trame constitutive ayant une zone d'image effective à l'intérieur de la première image reconstruite, à effectuer l'une ou l'autre des opérations suivantes en tant que partie dudit codage : l'insertion d'au moins une valeur d'échantillon à l'extérieur de la zone d'image effective pour former une extension de limite pour la trame constitutive dans la première image reconstruite ; ou la saturation ou l'enveloppement d'emplacements de suréchantillon à l'extérieur de la zone d'image effective pour qu'ils se trouvent à l'intérieur de la zone d'image effective. L'invention concerne également un procédé comprenant la réception d'une image codée, le décodage de l'image codée pour former une trame constitutive reconstruite de l'image ayant une zone d'image effective ; et l'exécution de l'une ou l'autre des opérations suivantes : le remplissage d'une zone à l'extérieur de la zone d'image effective pour produire une image de référence remplie, la zone pleine formant une extension de limite ; ou la détermination du fait que, lorsqu'on se réfère à des emplacements d'échantillon à l'extérieur de la zone d'image effective lors du décodage, lesdits emplacements d'échantillon sont saturés ou enveloppés pour se trouver à l'intérieur de la zone d'image effective.
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