Methods and systems for motion adaptive filtering detect movement of text or areas of high spatial frequency in one frame to another frame of an image. When such movement is detected and meets a certain level or threshold, the subpixel rendering processing of such text or areas of high spatial frequency...http://www.google.com.hk/patents/US7864194?utm_source=gb-gplus-share專利 US7864194 - Systems and methods for motion adaptive filtering
