Patent ID: 6343151
Filing Date: 2002-01-29
Classification: G06T,G10L,H04N

Abstract:
In a system for communicating plural frames of information, each frame representing the state of the information during a respective one of a sequence of time periods, said information comprising a plurality of data values, a method of transmitting the information from a transmitter to a receiver comprising the steps of:(a) identifying within the information at the transmitter one or more objects, each object defined independently of a current frame such that said objects may be larger than or not contained within said current frame, and each object defined by a subset of substantially all the data values in said current frame which, (i) have not changed substantially between the current frame and plural prior frames, and (ii) have changed collectively as a subset relative to a former one of the plural prior frames; (b) determining for each object the change between at least two of the frames in the relationship of the object to the frames; (c) transmitting for each object an identification of the object and said determined change; (d) reconstructing at the receiver the objects in one of the frames from the identifications and the determined changes.