A method and apparatus for pre-processing an image sequence to extract side information concerning the image sequence is disclosed. In one embodiment, the side information is inserted into the image sequence, such that upon being encoded at a later time, the encoder can utilize the side information to...http://www.google.com.au/patents/US6233278?utm_source=gb-gplus-sharePatent US6233278 - Apparatus and method for using side information to improve a coding system
