Fast Codevector Search Algorithm for 3-D Vector Quantized Codebook
This paper presents a very simple and efficient algorithm for codebook search, which reduces a great deal of computation as compared to the full codebook search. The algorithm is based on sorting and centroid technique for search. The results table shows the effectiveness of the proposed algorithm in terms of computational complexity. In this paper the authors also introduce a new performance parameter named as average fractional change in pixel value as they feel that it gives better understanding of the closeness of the image since it is related to the perception.