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Proceedings Paper

Medium Resolution Road Detector
Author(s): Gene W. Dykes
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Paper Abstract

A road-finding algorithm has been developed which utilizes a new method for detecting straight edges in a scene. The road finder has accurately identified roads in a variety of images such as infra-red and multispectral, forward and down-looking, and rural and urban environments. The algorithm is designed to locate roads that are between three and twelve pixels in width. The new edge detector takes advantage of the unique characteristics of the edge-preserving smoothing filter of Nagao and Matsuyama, which has been improved by using it in combination with median filters. Data reduction is guided by a knowledge of road characteristics - edges in the scene are efficiently reduced to instances of anti-parallel segments. Combinations of these segments are then evaluated with respect to several road scoring functions to determine the location and confidence of the best road in an image.

Paper Details

Date Published: 25 August 1983
PDF: 12 pages
Proc. SPIE 0354, Airborne Reconnaissance VI, (25 August 1983); doi: 10.1117/12.933966
Show Author Affiliations
Gene W. Dykes, PAR Technology Corporation (United States)

Published in SPIE Proceedings Vol. 0354:
Airborne Reconnaissance VI
Paul A. Henkel; Francis R. LaGesse, Editor(s)

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