Patent ID: 6501446
Filing Date: 2002-12-31
Classification: G09G,H04N

Abstract:
A video processing unit for processing a series of images to be displayed on a display device, wherein a particular image is displayed in a plurality of periods called sub-fields, each of the sub-fields having a respective weight corresponding with a respective intensity level generated in this sub-field, the video processing unit comprising:first intensity calculating means for calculating, for a particular pixel on the basis of motion estimation from the series of images, a desired intensity level at a point in time corresponding with a current sub-field; means for obtaining, from the motion estimation, a current motion vector for the particular pixel; second intensity calculating means for calculating an accumulated intensity level integrated by a human observer along the motion vector over a number of earlier processed sub-fields, if any; third intensity calculating means for calculating a target intensity level to be generated in the current and one or more subsequent sub-fields, if any, on the basis of the accumulated intensity level and the desired intensity level; and decision means for deciding whether the particular pixel is to be lit in the current sub-field on the basis of the target intensity level and the weight of the current sub-field.