Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2005-11-22
2005-11-22
Rao, Andy (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240120, C375S240130
Reexamination Certificate
active
06968007
ABSTRACT:
The invention relates to a scalable video transcoding method for transcoding an input video signal (103) coded according to MPEG-2 video standard, resulting in four transcoding architectures. Scalability is obtained by means of to switches (120) and (130) determining whether or not reconstruction (118) and motion compensation (128) of the coding error (119) are performed. Each architecture thus defined having a different processing complexity, the overall processing resources available can be optimally used and minimized along a group of frames in the transcoding of parts of said frames in accordance with one of these four architectures, while ensuring a good video quality of tanscoded signal (109). A cost-effective control strategy of said switches based on an energy prediction of said coding error is also proposed.
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Koninklijke Philips Electronics , N.V.
Rao Andy
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