Medium Resolution Road Detector

Gene W. Dykes

doi:10.1117/12.933966

25 August 1983 Medium Resolution Road Detector

Gene W. Dykes

Proceedings Volume 0354, Airborne Reconnaissance VI; (1983) https://doi.org/10.1117/12.933966
Event: 26th Annual Technical Symposium, 1982, San Diego, United States

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.

Citation Download Citation

Gene W. Dykes "Medium Resolution Road Detector", Proc. SPIE 0354, Airborne Reconnaissance VI, (25 August 1983); https://doi.org/10.1117/12.933966

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