VQ Codebook Design Algorithm Based on Copula Estimation of Distribution Algorithm

The copula estimation of distribution algorithm is used in the work of codebook design, in which the selected population is the training vectors who coding with the concerned codeword. In each generation, the new codeword are generated by a copula and the estimated margins according to the selected population. The experimental results show that the proposed algorithm performs better than some classic codebook design algorithm such as LBG, ANT based algorithms, codebook-based tuba search algorithm and partitioning-based tuba search algorithm.