Patent ID: 7345710

Claim:
A signal processing method for a composite television (TV) signal comprising: calculating image similarity of samples of the composite TV signal, wherein the image similarity is calculated based on spatial and temporal correlations of the samples from the composite TV signal; extracting a luminance signal (Y) and a chrominance signal (C) from the composite TV signal; demodulating the chrominance signal (C) to obtain a baseband chrominance signal (U 1 ,V 1 ); regulating the baseband chrominance signal (U 1 ,V 1 ) to obtain a regulated baseband chrominance signal (U 2 ,V 2 ); and calculating a final chrominance signal (U,V) from the baseband chrominance signal (U 1 ,V 1 ) and the regulated baseband chrominance signal (U 2 ,V 2 ) according to the image similarity.