Patent ID: 7612827

Claim:
An image processing apparatus for converting an interlaced signal into a progressive signal, the interlaced signal including a signal converted so as to be matched to a frame rate of an input video signal with original images arranged on a basis of a predetermined sequence as the video signal, the image processing apparatus comprising: field-interpolated signal generating means for generating a progressive field-interpolated signal by interpolating a signal at a selected position corresponding to a scanning line to be interpolated in a present field, the signal at the selected position belonging to one of a field preceding the present field and a field succeeding the present field; and double image detecting means for determining whether a pixel in the field-interpolated signal forms a part of a double image, and for replacing a pixel in the field-interpolated signal which forms a part of a double image with a predetermined substitute signal; wherein if the number of pixels in the field-interpolated signal which form parts of the double image reaches a predetermined threshold value, the double image detecting means replaces signals of pixels or lines to be output after the predetermined threshold value is reached in the field-interpolated signal with the predetermined substitute signal.