Video signal compression process augmented with information...

Details Video signal compression process augmented with information... Video signal compression process augmented with information...

H - Electricity

04

N

H04N 7/26 (2006.01) H04N 5/222 (2006.01) H04N 7/52 (2006.01)

Patent

CA 2260961

After decoding of an MPEG bitstream to the form of a video signal, an information stream signal in the form of all or part of the MPEG bitstream, is transmitted alongside the video signal, embedded in the least significant bit. Recording may simply involve extraction of the embedded MPEG bitstream or, if only part of the bitstream has been embedded, an essentially "dumb" coding operation guided by the information stream signal.

Après qu'un train binaire MPEG a été décodé de façon à se présenter sous forme d'un signal vidéo, un signal de train d'informations se présentant sous forme de tout ou d'une partie d'un train binaire MPEG est transmis en même temps que le signal vidéo, incorporé dans le dernier bit significatif. Le recodage peut simplement être représenté par l'extraction du train binaire MPEG incorporé, ou, si seule une partie du train binaire a été incorporée, par une opération de codage sensiblement "non intelligente" guidée par le signal de train d'informations.

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