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Neural Network Based Order Statistic Processing Engines
Department of Software Engineering, Izmir University of Economics, Izmir, Turkey
Electrical and Computer Engineering Department, Illinois Institute of Technology, Chicago, USA
- 1 Department of Software Engineering, Izmir University of Economics, Izmir, Turkey
- 2 Electrical and Computer Engineering Department, Illinois Institute of Technology, Chicago, USA
Journal of Signal and Information Processing·Volume 03 (2012)·Pages 30–34·Published 28 February 2012·DOI10.4236/jsip.2012.31004
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Abstract
Order statistic filters are used often in the applications of science and engineering problems. This paper investigates the design and training of a feed-forward neural network to approximate minimum, median and maximum operations. The design of order statistic neural network filtering (OSNNF) is further refined by converting the input vectors with elements of real numbers to a set of inputs consisting of ones and zeros, and the neural network is trained to yield a rank vector which can be used to obtain the exact ranked values of the input vector. As a case study, the OSNNF is used to improve the visibility of target echoes masked by clutter in ultrasonic nondestructive testing applications.
KeywordsNeural NetworksBack-Propagation AlgorithmOrder Statistic FiltersTarget Echo Detection
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