Method and apparatus for encoding video signal using previous picture already converted into H picture as reference picture of current picture and method and apparatus for decoding such encoded video signal
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United States of America Patent
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Issued Date -
Jun 22, 2006
app pub date -
Nov 29, 2005
filing date -
Nov 29, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and apparatus for encoding/decoding a video signal according to an MCTF coding scheme is provided. Not only pictures, which are to be converted into L pictures, but also pictures, which are to be converted into H pictures, at the current temporal decomposition level are used as candidates for a reference picture for coding a current picture into a predictive image. A previous picture, which has already been converted into an H picture, can also be used as a reference picture for converting the current picture into an H picture. Using the previous picture as the reference picture increases MCTF coding efficiency if the previous picture has an image most highly correlated with that of the current picture.
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