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Segmentation Based Multilevel Wide Band Compression for SAR Images Using Coiflet Wavelet
Parathasarthy Subashini , M. Krishnaveni
Pages - 177 - 184     |    Revised - 01-05-2011     |    Published - 31-05-2011
Volume - 5   Issue - 2    |    Publication Date - May / June 2011  Table of Contents
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KEYWORDS
Image processing, Compression , SAR images, Segmentation, wavelets
ABSTRACT
Synthetic aperture radar (SAR) data represents a significant resource of information for a large variety of researchers. Thus, there is a strong interest in developing data encoding and decoding algorithms which can obtain higher compression ratios while keeping image quality to an acceptable level. In this work, results of different wavelet-based image compression and segmentation based wavelet image compression are assessed through controlled experiments on synthetic SAR images. The effects of dissimilar wavelet functions, number of decompositions are examined in order to find optimal family for SAR images. The choice of optimal wavelets in segmentation based wavelet image compression is coiflet for low frequency and high frequency component. The results presented here is a good reference for SAR application developers to choose the wavelet families and also it concludes that wavelets transform is rapid, robust and reliable tool for SAR image compression. Numerical results confirm the potency of this approach.
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Dr. Parathasarthy Subashini
avianshilingam University for women - India
mail.p.subashini@gmail.com
Mr. M. Krishnaveni
- India