Piecewise linear motion-adaptive interpolation

摘要

A new motion-adaptive interpolation algorithm is presented in this paper. Based upon the characteristics of typical video-conferencing scenes, a simple yet effective technique called background subtraction is proposed to refine the segmentation of the frame for interpolation. In this scheme, the outlines of missing frames are transmitted if necessary. The adaptivity depends on the magnitude of the representative vector, which is determined by the distribution of motion vectors on the outlines. At cost of small overhead data, the algorithm improves the edge integrity and the quality of reconstruction of the interpolated frame.