題名: Three Improved Codebook Searching Algorithms for Image Compression Using Vector Quantizer
作者: Chang, C. C.;Kuo, C. L.;Chen, C. C.
關鍵詞: Vector quantization;image compression;double test method 日期: 2009-04
上傳時間: 2009-12-17T06:57:23Z 出版者: Asia University
摘要: In this paper, we propose three improved codebook searching algorithms for vector quantization (VQ). Our improved schemes are based on three fast searching methods proposed by Huang et al., IEEE Transactions on Image Processing, 1 (3), 1992, 413?416 and the double test (DT) method proposed by Torres and Huguet, IEEE Transactions on Communications, 42 (2|3|4), 1994, 208?210. Compared with three codebook searching schemes proposed by Huang et al. [9], we find our proposed algorithms have better performance in terms of encoding time and distortion computations according to the experimental results.