An encoding method, which achieves encoding efficiency, and good picture quality encoding even when there exists a picture in which a scene change occurs within an interlaced frame, is provided. A moving pictures encoding method treats a frame of interlaced image input signals as a picture, and performs...http://www.google.com.hk/patents/US7453941?utm_source=gb-gplus-share專利 US7453941 - Moving pictures encoding method and apparatus for detecting a scene change between fields of an interlaced image