A learning-based codebook design for vector quantization using evolution strategies

Shuangteng Zhang; Ezzatollah Salari

doi:10.1117/12.561217

2 November 2004 A learning-based codebook design for vector quantization using evolution strategies

Shuangteng Zhang, Ezzatollah Salari

Proceedings Volume 5558, Applications of Digital Image Processing XXVII; (2004) https://doi.org/10.1117/12.561217
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

This paper presents a learning based codebook design algorithm for vector quantization of digital images using evolution strategies (ES). This technique embeds evolution strategies into the standard competitive learning vector quantization algorithm (CLVQ) and efficiently overcomes its problems of under-utilization of neurons and initial codebook dependency. The embedding of ES greatly increases the algorithm’s capability of avoiding the local minimums, leading to global optimization. Experimental results demonstrate that it can obtain significant improvement over CLVQ and other comparable algorithms in image compression applications. In comparison with the FSLVQ and KSOM algorithms, this new technique is computationally more efficient and requires less training time.

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Shuangteng Zhang and Ezzatollah Salari "A learning-based codebook design for vector quantization using evolution strategies", Proc. SPIE 5558, Applications of Digital Image Processing XXVII, (2 November 2004); https://doi.org/10.1117/12.561217

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KEYWORDS

Quantization

Neurons

Evolutionary algorithms

Distortion

Image compression

Reconstruction algorithms

Image quality

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