Motion compensated deinterlacing of video sequences

Abstract

Summary form only given. Interlaced scanning is an effective method of bandwidth compression that was appropriate in the old days when television frame memories were expensive. However, in addition to the loss of vertical resolution, interlacing results in many well-known artifacts (e.g. interline flicker, line crawl). Some novel techniques for reducing the artifacts associated with interlacing, and for effectively increasing the vertical resolution by motion-compensated interpolation are reported. Unlike motion-compensated coding, where inaccurate motion estimates only increase the bit rate slightly, and since motion-compensated interpolation has to be done entirely at the receiver, a hybrid pel recursive block matching technique is used for motion estimation, and additional postprocessing is used to remove any artifacts.<>