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Application of Walsh Transforms for Topographic Feature Extraction Using a Sensor Array System

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2 Author(s)

Signal signatures and signatures of various spectral decompositions of selected topographic feature images, such as line roads, road intersections, and buildings were developed using a sensor array system with Walsh transform processing. Signal signatures of selected topographic features were constructed in the spatial domain, while the corresponding signatures of various spectral components were obtained in the Walsh transform domain. An electronic system for generating two-dimensional Walsh functions for decomposition of topographic features was designed. A scheme for detecting the decomposed spectral components using an analog processor is presented.

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Instrumentation and Measurement, IEEE Transactions on  (Volume:29 ,  Issue: 1 )