Motion Compensated Composite Color Coding

This paper is concerned with motion compensation techniques for predictive coding of the composite (frequency multiplexed) color television signal. Motion estimation algorithms developed in this paper are recursive and are extensions of our previous algorithms developed for baseband luminance signals. We show, by computer simulations, that displacement of objects from frame to frame can be estimated in the composite signal domain without decomposing the composite signal into its original components. However, due to the poorer quality of displacement estimation and the resulting prediction, motion compensation in the composite signal domain is not as efficient as motion compensation in the component domain. Simulations indicate that a motion compensated predictive coder requires, in some cases, up to 25 percent fewer bits than a coder that uses previous field prediction.