H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/33
H04N 7/12 (2006.01)
Patent
CA 1243771
Abstract of the Disclosure: In coding a digital video signal representative of successive pictures by using correlation between the successive pictures, each picture is divided into a predetermined number of blocks of picture elements. An original motion vector is used to represent a movement of each block between two pictures. The digital video signal is predictively coded by using the original motion vector to produce a coded signal. The blocks are processed into an on-off control signal. A part of the coded signal is subsampled into a subsampled signal with refer- ence to the on-off control signal and a remaining part is left as it is as a non-subsampled signal. The subsampled and the non-subsampled signals are code-converted into a converted code signal. The original motion vector and the on-off control signal are code-converted into a converted motion vector signal and a converted control signal. The converted control signal specifies transition points which appear in the on-off control signal when the on-off control signal is switched between off and on.
495170
Corporation Nec
Smart & Biggar
LandOfFree
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