Learning target masks in infrared linescan imagery

Thomas Fechner; Oliver Rockinger; Axel Vogler; Peter Knappe

doi:10.1117/12.271493

4 April 1997 Learning target masks in infrared linescan imagery

Thomas Fechner, Oliver Rockinger, Axel Vogler, Peter Knappe

Proceedings Volume 3077, Applications and Science of Artificial Neural Networks III; (1997) https://doi.org/10.1117/12.271493
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

In this paper we propose a neural network based method for the automatic detection of ground targets in airborne infrared linescan imagery. Instead of using a dedicated feature extraction stage followed by a classification procedure, we propose the following three step scheme: In the first step of the recognition process, the input image is decomposed into its pyramid representation, thus obtaining a multiresolution signal representation. At the lowest three levels of the Laplacian pyramid a neural network filter of moderate size is trained to indicate the target location. The last step consists of a fusion process of the several neural network filters to obtain the final result. To perform this fusion we use a belief network to combine the various filter outputs in a statistical meaningful way. In addition, the belief network allows the integration of further knowledge about the image domain. By applying this multiresolution recognition scheme, we obtain a nearly scale- and rotational invariant target recognition with a significantly decreased false alarm rate compared with a single resolution target recognition scheme.

Citation Download Citation

Thomas Fechner, Oliver Rockinger, Axel Vogler, and Peter Knappe "Learning target masks in infrared linescan imagery", Proc. SPIE 3077, Applications and Science of Artificial Neural Networks III, (4 April 1997); https://doi.org/10.1117/12.271493

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