Patent ID: 7339626
Filing Date: 2008-03-04
Classification: H04N

Abstract:
1. An apparatus for deinterlacing a video image, comprising: an input buffer, configured to receive a video stream in an interlaced format, wherein the video stream comprises a field comprising a plurality of lines each line comprising a plurality of pixels; and a processor configured to convert the video stream from the interlaced format to a progressive format by inserting a luma value into the video stream at the position of a pixel to-be-interpolated which is located in between the lines of the field, the processor including a slope protection operation module adapted to determine the slope of a diagonal line of an image intersecting the pixel to-be-interpolated by performing a slope protection opertation comprising determining derivative values in conjunction with selecting a value for the slope of the diagonal line at the position at the pixel to-be-interpolated.