PURPOSE: To optimize the separation of a brightness signal and a chrominance signal and to reduce cross color and dot trouble by detecting by detecting correlation between fields locally when a movement detecting circuit detects a moving image and switching an inter-field process and an in-field process adaptively by using the detection result.
CONSTITUTION: When the movement detecting circuit 80 detects the moving image, the correlation between fields is detected locally, the inter-field process and in-field process are switched adaptively according to the detection result, and an in-frame YC separating circuit 90 (Y: brightness signal, C: chrominance signal) outputs an in-frame YC separation Y signal and an in-frame YC separation C signal. Similarly, the correlation in fields is detected, the inter-field process is performed according to the result, and the in-frame YC separating circuit 90 outputs the separated Y signal and C signal, and an isolation point is removed.
YAMAGUCHI NORIYUKI
ISHIZUKA MITSURU
YAO SEIJI
