A method for filtering data to be compressed by frame differencing is disclosed. In applications where large amounts of data must be either stored or transmitted, such as, for example, digital image data, various techniques are used to compress the data. One such technique is frame differencing wherein...http://www.google.com/patents/US5664029?utm_source=gb-gplus-sharePatent US5664029 - Method of disregarding changes in data in a location of a data structure based upon changes in data in nearby locations
