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B-splines Wavelets for Signal Denoising and Image Compression

مؤلف البحث
M. F. Fahmy, G. Fahmy and O. F. Fahmy
المشارك في البحث
سنة البحث
2011
مجلة البحث
Journal of Signal, Image and Video Processing
الناشر
Springer
عدد البحث
Volume 5, Issue 2 (2011)
تصنيف البحث
1
صفحات البحث
141
موقع البحث
http://www.springer.com/engineering/signals/journal/11760
ملخص البحث

In this paper we propose to develop novel techniques
for signal/image decomposition, and reconstruction
based on the B-spline mathematical functions. Our proposed B-spline based multiscale/resolution representation is based upon a perfect reconstruction analysis/synthesis point of view. Our proposed B-spline analysis can be utilized for different signal/imaging applications such as compression,
prediction, and denoising.We also present a straightforward computationally efficient approach for B-spline basis calculations that is based upon matrix multiplication and avoids any extra generated basis. Then we propose a novel technique for enhanced B-spline based compression for different image coders by preprocessing the image prior to the decomposition stage in any image coder. This would reduce the amount of data correlation and would allow for more compression, as will be shown with our correlation metric. Extensive simulations that have been carried on the well known SPIHT image coder with and without the proposed correlation removal methodology are presented. Finally, we utilized our proposed B-spline basis for denoising and estimation applications. Illustrative results that demonstrate the efficiency of the proposed approaches are presented.