Patent ID: 8013936

Claim:
A de-interlacing method applied to a to-be-de-interlaced field, which comprises a plurality of display pixels of display lines and a plurality of to-be-interpolated pixels of to-be-interpolated lines, the method comprising the steps of: (a) determining an edge-direction value corresponding to each of edge pixels in the to-be-de-interlaced field; (b) judging whether one of the display pixels near each of the to-be-interpolated pixels has a corresponding edge-direction value to obtain a judgement result; (c) setting the corresponding edge-direction value for each of the to-be-interpolated pixels according to the corresponding edge-direction values of specific display pixels near each of the to-be-interpolated pixels if the judgement result in step (b) is affirmative; and (d) selecting a corresponding display pixel pair from the display lines above and under each of the to-be-interpolated pixels according to the corresponding edge-direction value of each of the to-be-interpolated pixels so as to calculate a luminance value and a chrominance value of each of the to-be-interpolated pixels.