Real time mixed model “true” motion measurement of television signal

Motion measurement of video signal has been one of the most researched topic in the field of video processing [1], [2]. The need for true and accurate motion measurement is a necessity for video coding and motion compensated picture processing. Very few algorithms have been proposed that are both efficient in terms of accuracy, complexity and ease of implementation in reference hardware and software platforms. In this paper we propose a motion estimation algorithm that can handle very large to sub-pixel motion without any compromise. The motion estimation algorithm works in two stages where the global affine motions are measured in the first stage and residual small local motions are measured in the second stage. The algorithm is 100 times faster in measuring affine motion compared to MPEG-4 reference codec and is equally fast in measuring local motion.