SYSTEM AND METHOD FOR PREDICTIVE CODING OF VIDEO DATA USING A CONTRACTIVE AFFINE TRANSFORMATION

摘要

A system and method for contractively mapping decompressed images to facilitate resynchronization of data transmission is disclosed. This system includes a transmitter (12) having a data compressor (16), a decompressor (18T), and a contractive mapper (20T). The receiver (14) for the data transmission includes a decompressor (18R) and contractive mapper (20R). The decompressor (18T) and contractive mapper (20T) of the transmitter (12) provide the compressor (16) with the same information which the decompressor (18R) at the receiver (14) is using to decompress data. In this manner, the compressor (16) may accurately represent the incoming frame data in terms of the contractively mapped decompressed data. The contractive mapper (20T, 20R) attenuates information in the decompressed data frame to prevent the persistence of erroneous data at the receiver (14) should data become corrupted during transmission or the transmission be interrupted. The contractive mapping is preferably achieved with an affine map contracting scheme which is preferably implemented by a scalar multiplication.