DocumentCode
1729228
Title
An enhanced initialization method for codebook generation
Author
Kai-Cheng Hu ; Chun-Hao Chen ; Chun-Wei Tsai ; Ming-Chao Chiang
Author_Institution
Dept. of Comput. Sci. & Eng., Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan
fYear
2015
Firstpage
92
Lastpage
93
Abstract
Generalized Lloyd algorithm (GLA) is one of the most well-known image compression algorithms for tGLAhe codebook generation problem of vector quantization. However, it is usually extremely sensitive to the initial solution. Thus, this paper presents an enhanced method that leverages the strength of two methods to create a better initial solution for the codebook generation problem. The simulation results show that the proposed method can provide a quality that is significantly better than that GLA alone can provide.
Keywords
data compression; image coding; GLA; codebook generation problem; enhanced initialization method; generalized Lloyd algorithm; image compression algorithms; vector quantization; Computer science; Data preprocessing; Euclidean distance; Quantization (signal); Simulation; Sorting; Training; Vector quantization; codebook generation problem; generalized Lloyd algorithm;
fLanguage
English
Publisher
ieee
Conference_Titel
Consumer Electronics - Taiwan (ICCE-TW), 2015 IEEE International Conference on
Conference_Location
Taipei
Type
conf
DOI
10.1109/ICCE-TW.2015.7217048
Filename
7217048
Link To Document