Apparatus for combining and separating constituent...

Details Apparatus for combining and separating constituent... Apparatus for combining and separating constituent...

H - Electricity

04

N

350/33, 350/40,

H04N 11/00 (2006.01) H04N 9/78 (2006.01) H04N 11/24 (2006.01)

Patent

CA 1326537

Abstract The luminance component of a video signal is processed to produce a luminance component with groups of mutually exclusive spatially correlated image pixels of identical value within each group. In one embodiment each group comprises vertically averaged pixels 1H apart within a field. In another embodiment each group comprises vertically averaged pixels 263H apart within a frame. The chrominance component is similarly processed. The processed luminance and chrominance components are combined using an invertible algorithm involving additive and subtractive signal combination. At a decoder, the inverse of the combining algorithm is used to separate the combined signal into its constituent luminance and chrominance component parts, without luminance-chrominance crosstalk.

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