Video signal processing

Details Video signal processing Video signal processing

H - Electricity

04

N

H04N 7/26 (2006.01) G06T 9/00 (2006.01) H04N 7/50 (2006.01) H04N 7/58 (2006.01)

Patent

CA 2210809

In a signal transmission chain containing, for example MPEG2 coders (12, 20, 28) and decoders (24, 30), an information channel extends throughout the signal chain. Signal processing elements in the chain take advantage of information (VP) on the information channel and also add to it information (VP) concerning the process performed by that signal processing element. The information channel, towards the end of the signal transmission chain, therefore carries information (VP) relating to all or most of the various processes performed by in the chain.

Cette invention concerne une chaîne de transmission de signal, comprenant, par exemple des codeurs (12, 20, 28) et des décodeurs (24, 30) MPEG2, et tout au long de laquelle s'étend un canal d'information. Les éléments de traitement du signal situés dans la chaîne utilisent les informations (VP) relatives au canal d'information, et y ajoutent également des informations (VP) concernant le travail effectué par ces éléments de traitement du signal. Vers la fin de la chaîne de transmission de signal, le canal d'information transporte ainsi des informations (VP) relatives à tous les divers traitements, ou à la plupart d'entre eux, réalisés lors du passage dans la chaîne.

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