H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/50 (2006.01) H04N 7/26 (2006.01)
Patent
CA 2533221
An MPEG-2 or other compressed video stream (CP) can be manipulated as separate information bus (IB) and coefficient (CP*) streams. The information bus stream (IB) contains motion vector information but also information derived from a previous decoding operation (14, 18) for use in a subsequent coding operation (22). Processing in the coefficient domain enables bit rate conversion without decoding to the pixel level and also simplifies the combination of MPEG layers.
Devlin Bruce Fairbairn
Knee Michael James
Wells Nicholas Dominic
British Broadcasting Corporation
Fetherstonhaugh & Co.
Snell & Wilcox Limited
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