Basic principles of motion estimation and compensation

Reviews the development of motion estimation and compensation techniques in the context of efficient image coding and display and mentions typical application areas. By and large, there has been relatively little work reported on the problem of general motion, involving rotation and scale change, and the assumption of simple translation only has been widely invoked. Other areas relevant to the present discussion are those of image analysis and object tracking, where a true motion estimate is required but any kind of associated compensation operation unnecessary. One or two areas where the technique is currently employed are introduced, and to indicate selected references are indicated in the literature