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1. CN1781313 - Picture coding method

Office Chine
Numéro de la demande 200480011621.4
Date de la demande 29.04.2004
Numéro de publication 1781313
Date de publication 31.05.2006
Type de publication A
CIB
H04N 7/26
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
NTRANSMISSION D'IMAGES, p.ex. TÉLÉVISION
7Systèmes de télévision
24Systèmes pour la transmission de signaux de télévision utilisant la modulation par impulsions codées
26utilisant la réduction de la largeur de bande
CPC
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
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
Déposants Nokia Corp.
诺基亚有限公司
Inventeurs Hannuksela Miska
M·汉努克赛拉
Mandataires cheng tianzheng chen jingjun
中国专利代理(香港)有限公司
中国专利代理(香港)有限公司
Données relatives à la priorité 10427714 30.04.2003 US
Titre
(EN) Picture coding method
(ZH) 图像编码方法
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.

(ZH)

编码的图像包括一个或多个独立可解码的帧、参考帧、和预测帧。在本方法中,执行用于按编码次序排列图像的排列步骤,以及为编码图像定义关于呈现次序的信息。另外,在本方法中,执行用于发送所述编码图像到解码器的发送步骤,用于解码已编码的图像以形成解码的图像的解码步骤,以及用于按呈现次序排列解码的图像的重新排列步骤。定义每个图像的呈现次序的预期的递增量值,以及计算指示预期的递增量值与真实的递增量值之间的差值的参数。计算的参数被进行VLC编码,以及经VLC编码的参数被发送,其中经VLC编码的参数在解码器中被使用来按正确的呈现次序排列解码的图像。

Également publié en tant que
KR1020057020491
NO20055043