Sun Jixiang

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Ship detection is a basic problem to be solved in SAR application of ocean surveillance. To deal with the rapid increasing SAR data, fast algorithm has become a hot topic in the research of ship detection. This paper proposes a fast ship detection algorithm in SAR imagery for wide area ocean surveillance. The algorithm adopts global two-parameter CFAR and(More)
Motivated by local coordinate coding (LeC) theory in nonlinear manifold learning, we proposed a new image representation model called local sparse representation (LSR) for astronomical image denoising. Meanwhile, a fast approximated LSR method by first performing a K-nearest-neighbor search and then solving a &#x2113;<sup>1</sup> optimization problem is(More)
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