Patent ID: 7190406
Filing Date: 2007-03-13
Classification: H04N

Abstract:
1. A deinterlacing method comprising the steps of: measuring an edge gradient from a series of pixels provided in an upper scan line and a series of pixels provided in a lower scan line with reference to a pixel to be interpolated; determining an interpolation-method on the basis of the measured edge gradient; calculating a plurality of difference values for each of a plurality of pixel pair combinations, each of the pixel pair combinations having at least one pixel pair, the pixel pair having two pixels each of which belongs to one of the upper and lower scan lines with reference to the pixel to be interpolated, the pixel pairs of the pixel pair combinations being adjacent to one another and the pixel pair combinations having different directions from one another; determining an edge direction on the basis of a direction of the pixel pair combination having the smallest of the calculated plurality of difference values; and performing an interpolation for the pixel using the determined interpolation method and the determined edge direction.