Patent ID: 8269888
Filing Date: 2012-09-18
Classification: H04N

Abstract:
1. An image processing apparatus, comprising: an IP conversion unit which converts an input interlaced image into a progressive image based on first and second field images of the interlaced image respectively stored in first and second field memories, by interpolating the second field image based on a difference between the first and second field images; a scene detection unit which detects whether the interlaced image is a vertically scrolled image based on a vertical component of a motion vector calculated using the difference between the first and second field images; and a filter processing unit which, when the vertically scrolled image is detected by the scene detection unit, calculates average motion amounts according to a speed of vertical scrolling of the interlaced image, causes parallel motion of each of output images of a plurality of past frames by reading from a buffer memory a plurality of pixel values in pixel positions of the progressive image offset by the average motion amounts, calculates cumulative pixel values from the output images of the plurality of past frames after parallel motion and the progressive image, and outputs the pixel values as a current output image.