Improved batch fuzzy learning vector quantization for image compression

GE Tsekouras, M Antonios, C Anagnostopoulos… - Information …, 2008 - Elsevier
GE Tsekouras, M Antonios, C Anagnostopoulos, D Gavalas, D Economou
Information Sciences, 2008Elsevier
In this paper, we develop a batch fuzzy learning vector quantization algorithm that attempts
to solve certain problems related to the implementation of fuzzy clustering in image
compression. The algorithm's structure encompasses two basic components. First, a
modified objective function of the fuzzy c-means method is reformulated and then is
minimized by means of an iterative gradient-descent procedure. Second, the overall training
procedure is equipped with a systematic strategy for the transition from fuzzy mode, where …
In this paper, we develop a batch fuzzy learning vector quantization algorithm that attempts to solve certain problems related to the implementation of fuzzy clustering in image compression. The algorithm’s structure encompasses two basic components. First, a modified objective function of the fuzzy c-means method is reformulated and then is minimized by means of an iterative gradient-descent procedure. Second, the overall training procedure is equipped with a systematic strategy for the transition from fuzzy mode, where each training vector is assigned to more than one codebook vectors, to crisp mode, where each training vector is assigned to only one codebook vector. The algorithm is fast and easy to implement. Finally, the simulation results show that the method is efficient and appears to be insensitive to the selection of the fuzziness parameter.
Elsevier
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