Patent ID: 6411336
Filing Date: 2002-06-25
Classification: H04N

Abstract:
A system for aligning still video images, comprising:a scanline selector that sequentially selects each of a plurality of scanlines of an input video image; at least one pixel difference generator that generates at least one of at least one alignment difference between a current scanline and at least one previous scanline, and at least one alignment difference between the current scanline and at least one next scanline for each of at least one offset value; a sum generator that determines at least one of a total alignment difference between the current scanline and at least one other scanline for each of the at least one offset value; a minimum sum detector that determines which offset value provides a minimum of the total alignment differences generated by the sum generator for the at least one offset value; and a scanline shifter that shifts the current scanline by at least a fraction of the offset value.