Patent ID: 6459734
Filing Date: 2002-10-01
Classification: G06T,H04N

Abstract:
A motion detection circuit comprising:delay means for generating a delayed video signal from a video signal including a luminance signal and a carrier color signal, said delayed video signal being delayed by one frame from said video signal; interframe difference signal generation means for generating an interframe difference signal from said video signal and said delayed video signal; filter means for filtering said interframe difference signal to remove said carrier color signal to output said interframe difference luminance signal; first motion judging means for judging whether an image at a target pixel in said video signal is moving from said interframe difference luminance signal to output a first motion judging result; second motion judging means for judging whether said image is moving from said interframe difference signal to output a second motion judging result; and third motion judging means for judging whether said image is moving by combining said first motion judging result with said second motion judging result to output a judging result.