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Optical Engineering

Circular array targets detection from remote sensing images based on saliency detection
Author(s): Xianwei Han; Yili Fu
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Paper Abstract

To extract circular array targets from high-spatial resolution optical satellite images, we propose an efficient two-step detection framework. In the first stage, we propose a multiscale histogram contrast (MHC) saliency evaluation model to detect salient objects. This saliency model is able to highlight all salient areas with well-defined boundaries and effectively suppress the obvious background textures. Moreover, the generated saliency map can be used to find the locations of potential targets most likely causing visual attention, which greatly decreases the computation cost in later processes. In the second stage, we extract task-related targets from these salient objects by removing the irrelevant salient areas according to the special properties of the targets. In this paper, we present a circular array targets-detection method based on the saliency map produced by the proposed saliency detector. First we extract the circular objects from the saliency map using simple shape features, which are then clustered through a graph-based approach to locate the target areas. To evaluate the performance of our saliency model and targets extraction scheme, we carried out many experiments on large-field, high-spatial resolution remote-sensing images and achieved promising results both in efficiency and precision.

Paper Details

Date Published: 27 February 2012
PDF: 12 pages
Opt. Eng. 51(2) 026201 doi: 10.1117/1.OE.51.2.026201
Published in: Optical Engineering Volume 51, Issue 2
Show Author Affiliations
Xianwei Han, Harbin Institute of Technology (China)
Yili Fu, Harbin Institute of Technology (China)

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