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1. CN101395924 - Differential coding with lossy embedded compression

Office
Chine
Numéro de la demande 200780007728.5
Date de la demande 23.02.2007
Numéro de publication 101395924
Date de publication 25.03.2009
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
H04N 7/36
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
32comportant un codage par prédiction
36utilisant la prédiction temporelle
CPC
H04N 19/90
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
90using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
H04N 19/12
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
12Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
H04N 19/426
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
423characterised by memory arrangements
426using memory downsizing methods
H04N 19/467
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
46Embedding additional information in the video signal during the compression process
467characterised by the embedded information being invisible, e.g. watermarking
H04N 19/503
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
Déposants Koninkl Philips Electronics NV
皇家飞利浦电子股份有限公司
Inventeurs Van Der Vleuten Renatus J.
R·J·范德夫卢坦
Mandataires liu peng tan youxiang
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 06110624.1 03.03.2006 EP
Titre
(EN) Differential coding with lossy embedded compression
(ZH) 利用有损内嵌压缩进行差异编码
Abrégé
(EN)
A coding system (1) comprises an encoder device (2) and a decoder device (3) which both have a memory unit (23; 33) arranged in a loop for generating a prediction signal (y; g). The memory units apply lossy compression to reduce the memory requirements. In order to prevent drift due to dissimilar data reduction, the lossy compression in the encoder device (2) is substantially identical to the lossy compression in the decoder device (3). For example, both compressions may involve identical algorithms, compression factors and/or compression parameters.

(ZH)

一种编码系统(1)包括编码器装置(2)和解码器装置(3),编码器装置和解码器装置二者都具有安排在用于生成预测信号(y;g)的环路中的存储单元(23;33)。这些存储单元实施有损压缩来降低存储空间需求。为了防止因数据缩减不相似而造成的漂离,编码器装置(2)中的有损压缩基本上与解码器装置(3)中的有损压缩相同。例如,这两个压缩可以牵涉到同样的算法、压缩系数和/或压缩参数。表示有损压缩和/或解压缩的信息由编码器添加。