Abstract
The research on Side-Match Vector Quantization is involved to adapt three sides or even four sides to obtain better case on edge block prediction. The most major improvement is the recent study on TSMVQ. However its finite state coding strategy like side match using equal weight of surrounding block sides. When a clear line goes through the blocks, adapting which two sides could make the side-match state codebook select total different state codebook. This kind of characteristics makes the neighboring blocks which goes through by a line has high correlation. We use such trait to propose an advanced prediction which can use these correlation to predict such edge blocks in less bits.We also study the limitation of the TSMVQ, which leads us to find out there is certainly blocks is hard to predict by Three-sided side match method if the correlation in between the side is not strong. Hence selecting certain number of blocks and sending their position by quadtree coding and their Vector Quantization indices to obtain better image quality by wasting some bits as tradeof