1/2002 - 15 |
Application of the Optimal Uniform Polar Quantization on Complex Reflectivity FunctionZoran H. PERIC, Jelena D. JOVKOVIC |
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Author keywords
complex reflectivity function, optimal uniform polar quantization
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About this article
Date of Publication: 2002-04-02
Volume 2, Issue 1, Year 2002, On page(s): 80 - 85
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: Not assigned
Abstract Quantization makes an integral part of the polar data compression process and only real matter is how to satisfy both, accuracy and efficiency. The goal of this research is to develop a new approach for quantization in sense of efficient data compression and improved image quality. Here we introduce method of the optimal uniform polar quantization as an optimal technique in processing polar formatted SAR images and also as a potential concept in ultrasound diagnostics. An elementary way to relate the viewable SAR image to the energy returns from the observing ground is via complex reflectivity function x that relates the incident complex phaser electric field of the transmitter with the reflected field. Another field of implementation is in quantization of measured ultrasound parameter called integrated backscatter (IBS) level that is measure of signal energy. Studies over recent years have analyzed only product polar quantization, but in this paper we will introduce method of optimal polar quantization that provides performance improvement of almost 1 dB in a sense of distortion reduction. |
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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania
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