Patent ID: 6473464
Filing Date: 2002-10-29
Classification: G09G

Abstract:
A method for processing video pictures, useful for false contour effect compensation, the video picture comprising pixels, each pixel having assigned an input video value, the method comprising steps of:converting the input video value of a pixel into a digital code word determining the length of the time period during which the corresponding pixel of a display is activated, wherein to each bit defining a sub-field code word of said digital code word, a certain duration is assigned, defining a sub-field, and wherein the bit entry in the code word determines whether the pixel is activated or deactivated for light output during the assigned sub-field, calculating motion vectors for the pixels of the picture, calculating shift coordinates for the entries in the sub-field code word of a pixel in dependence of the calculated motion vector of the pixel, and processing the sub-field code word of the pixel by redistributing the sub-field code word entries in the original sub-field code word of the pixel in dependence of the calculated shift coordinates of the sub-field code word entries of the pixel.