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Proceedings Paper

Environmentally-adaptive target recognition for SAS imagery
Author(s): Xiaoxiao Du; Anand Seethepalli; Hao Sun; Alina Zare; J. Tory Cobb
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Paper Abstract

Characteristics of underwater targets displayed in synthetic aperture sonar (SAS) imagery vary depending on their environmental context. Discriminative features in sea grass may differ from the features that are discriminative in sand ripple, for example. Environmentally-adaptive target detection and classification systems that take into account environmental context, therefore, have the potential for improved results. This paper presents an end-to-end environmentally-adaptive target detection system for SAS imagery that performs target recognition while accounting for environmental context. First, locations of interest are identified in the imagery using the Reed-Xiaoli (RX) detector and a Non-Gaussian detector based on the multivariate Laplace distribution. Then, the Multiple Instance Learning via Embedded Instance Selection (MILES) approach is used to identify the environmental context of the targets. Finally, target features are extracted and a set of environmentally-specific k-Nearest Neighbors (k-NN) classifiers are applied. Experiments were conducted on a collection of both high and low frequency SAS imagery with a variety of environmental contexts and results show improved classification accuracy between target classes when compared with classification results with no environmental consideration.

Paper Details

Date Published: 3 May 2017
PDF: 15 pages
Proc. SPIE 10182, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XXII, 101820I (3 May 2017); doi: 10.1117/12.2262688
Show Author Affiliations
Xiaoxiao Du, Univ. of Missouri (United States)
Anand Seethepalli, Univ. of Missouri (United States)
Hao Sun, Univ. of Missouri (United States)
Alina Zare, Univ. of Florida (United States)
J. Tory Cobb, Naval Surface Warfare Ctr. Panama City Div. (United States)

Published in SPIE Proceedings Vol. 10182:
Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XXII
Steven S. Bishop; Jason C. Isaacs, Editor(s)

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