Video signal processing in which first video information and additional video information are combined to produce frames that are encoded with different picture qualities for edge and non-edge regions
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United States of America Patent
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May 20, 2003
Grant Date -
N/A
app pub date -
Sep 1, 2000
filing date -
Sep 3, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A video signal processor comprises a first input for receiving a compressed first video signal including parameters associated with the frames of the signal and relating to the compression. A decoder decodes the compressed first video signal while preserving the parameters in association with the frames. A second input receives additional video information to be combined with the first video information. A combiner superimposes the additional video information on the first video information. An encoder encodes the combined video information. The encoder reuses the preserved parameters for encoding at least parts of the combined information which are not derived from the superimposed video information.
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