Patent ID: 6021228
Filing Date: 2000-02-01
Classification: G06T

Abstract:
A method of processing a signal for a data compression system, said method comprising the steps of:receiving an input vector of N length by an input means of said system where N is an integer for processing;decomposing said input vector, said decomposing step including multiplying said input vector with a first and a second decimating matrices each decimating matrix comprising a plurality of integer matrix values, to generate a shape vector and a detail vector respectively, said first and second decimating matrices being dimensioned such that said shape vector and said detail vector each have a length of N/2;reconstructing said input vector, said step of reconstructing including multiplying said shape vector and said detail vector by a first and a second restoring matrix respectively, to generate a reconstructed shape vector and a reconstructed detail vector;adding said reconstructed shape vector to said reconstructed detail vector to generate an integer processed input vector; andoutputting compressed data using said integer processed input vector.