Patent ID: 7379120

Claim:
An image processing device converting an interlaced image signal included in a moving image signal to a progressive image signal, said image processing device comprising: a continuity detection circuit detecting continuities of a field image signal to be processed in the interlaced image signal and field image signals before and behind one field to the field image signal to be processed based on these three field image signals; a moving circuit moving at least one of the field image signals before and behind one field for one field period's worth based on a motion vector between the field image signals before and behind one field to generate a first field image signal included in a line not existing in the field image signal to be processed; and an image signal generation circuit deciding a mixture ratio based on the continuity detected by said continuity detection circuit, and mixing the first field image signal generated by said moving circuit and a second field image signal obtained by interpolating the line not existing in the field image signal to be processed based on a line in the field image signal to be processed at the mixture ratio to generate a third field image signal included in the progressive signal.