Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. AU2004234896 - Picture coding method

Office Australie
Numéro de la demande 2004234896
Date de la demande 29.04.2004
Numéro de publication 2004234896
Date de publication 03.11.2005
Type de publication B2
CIB
G06K 9/36
GPHYSIQUE
06CALCUL; COMPTAGE
KRECONNAISSANCE DES DONNÉES; PRÉSENTATION DES DONNÉES; SUPPORTS D'ENREGISTREMENT; MANIPULATION DES SUPPORTS D'ENREGISTREMENT
9Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
36Prétraitement de l'image, c. à d. traitement de l'information image sans se préoccuper de l'identité de l'image
CPC
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 19/174
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
174the region being a slice, e.g. a line of blocks or a group of blocks
H04N 19/177
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
177the unit being a group of pictures [GOP]
H04N 19/196
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
189characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
196being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
H04N 19/42
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
42characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
Déposants Nokia Corporation
Mandataires Spruson & Ferguson
Données relatives à la priorité 10427714 30.04.2003 US
Titre
(EN) Picture coding method
Abrégé
(EN)
Encoded pictures comprise one or more independently decodable frames, reference frames, and predicted frames. In the method an arrangement step is performed for arranging the pictures in an encoding order, and information on the presentation order is defined for the encoded pictures. Further in the method, a transmission step is performed for transmitting said encoded pictures to a decoder, a decoding step for decoding the encoded pictures for forming decoded pictures, and rearranging step for arranging the decoded pictures in presentation order. An expected increment value of the presentation order per picture is defined, and a parameter indicative of the difference between the expected increment value and the real increment value is calculated. The calculated parameter is VLC coded, and the VLC coded parameter is transmitted, wherein the VLC coded parameter is used in the decoder for arranging the decoded pictures in correct presentation order.

Également publié en tant que
KR1020057020491
NO20055043