ON SAND RIPPLE DETECTION IN SYNTHETIC APERTURE SONAR IMAGERY

被引：12

作者：

Williams, David P. ^{[1
]}

Coiras, Enrique ^{[1
]}

机构：

[1] NATO Undersea Res Ctr, I-19126 La Spezia, SP, Italy

来源：

2010 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING | 2010年

关键词：

Sand ripple detection; synthetic aperture sonar (SAS); ripple model; segmentation; mine countermeasures;

D O I：

10.1109/ICASSP.2010.5495340

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A model for the detection of sand ripples in synthetic aperture sonar (SAS) imagery is proposed. The approach is based on searching for patterns characterized by three highlight-shadow pairs - corresponding to ripple-wave crests and troughs - at different orientations and at different length-scales. The model also provides an estimate of the orientation of any ripples detected. No training data is required as the underlying physical phenomenon of ripples is modeled directly. The promise of the proposed method is demonstrated on five real, measured SAS images, for which a high probability of (ripple) detection is achieved while maintaining a very low false alarm rate.

引用

页码：1074 / 1077

页数：4

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