Abstract
We have proposed a sequential color system for use as a video format. In this system, three color planes are used sequentially, and, it has a picture quality of 4:4:4 with half uncompressed data of 4:2:2, if suitable color interpolation is used. To realize this system, a conversion to whole RGB picture with the interpolation of missing color plane is important. For this, a motion compensated interpolation by the same color plane in the other frames is effective. However, the conventional methods of motion estimation and compensation are not useful directly because of the changing of color plane by a frame. We discuss the adaptive interpolation method using forward frame and backward frame. Further, a motion estimation method using the contour picture and the same color plane are proposed. Finally, it is shown that useful converted picture is given for the usual picture.
