Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2001-07-09
2010-11-30
Rao, Andy S (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240260
Reexamination Certificate
active
07844000
ABSTRACT:
A method of enchancing a video bit stream using temporal scalability, wherein the number of bits or a temporal position of a bidirectionally predicted picture in an enhancement layer is determined with reference to a corresponding characteristic of pictures in another layer of layers, such as a base layer, of the video bit stream and the peak signal to noise ration of the B picture is matched to that of the pictures in the layer below. By endeavouring to align the characteristics of the bidirectionally predicted picture or pictures with the existing picture or pictures in the lower layer or layers, and improved video sequence can be encoded and decoded for viewing by a user.
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Dolbear Catherine Mary
Hobson Paola Marcella
Davis Valerie M.
Hughes Terri S.
Motorola Inc.
Rao Andy S
Santema Steven R.
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