A FAST ENCODING ALGORITHM FOR VECTOR QUANTIZATION

In this letter, we present a fast encoding algorithm for vector quanti zation that uses two characteristics of a vector, mean, and variance. Although a similar method using these features was already proposed, i t handles these features separately. On the other hand, the proposed a lgorithm utilizes these features simultaneously to save computation ti me all the more, Since the proposed algorithm rejects those codewords that are impossible to be the nearest codeword, it produces the same o utput as conventional full search algorithm. The simulation results co nfirm the effectiveness of the proposed algorithm.