A Wavelet Based GUI for NM Images Filtering Using Variance-Stabilizing Transformation

Mitrovski, Cvetko and Kostov, Mitko (2006) A Wavelet Based GUI for NM Images Filtering Using Variance-Stabilizing Transformation. In: International Scientific Conference on Information, Communication and Energy Systems and Technologies ICEST, June 2006, Sofia, Bulgaria.

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Abstract

In this paper we present an application and its interface for pre-processing of chest region NM images. It works in the Matlab environment and uses Matlab user defined functions. The software processes the images in the discrete wavelet transform domain. It uses QMF filters with linear phase designed to achieve both good image decomposition and near perfect reconstruction. Due to the fact that the noise in NM images is highly dependent on the image space distribution and signal intensity, it applies the Anscombe variance-stabilizing transformation over original images. As a result, the transformed images are characterized with a white Gaussian noise model and Donoho’s level dependent threshold is used.

Item Type: Conference or Workshop Item (Paper)
Subjects: Scientific Fields (Frascati) > Engineering and Technology > Electrical engineering, electronic engineering,information engineering
Scientific Fields (Frascati) > Engineering and Technology > Medical engineering
Scientific Fields (Frascati) > Engineering and Technology > Other engineering and technologies
Divisions: Faculty of Technical Sciences
Depositing User: Mr Mitko Kostov
Date Deposited: 30 Aug 2018 15:34
Last Modified: 30 Aug 2018 15:34
URI: http://eprints.uklo.edu.mk/id/eprint/573

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