In order to reduce the computational complexity of searching in massive information\nin detecting of warhead targets, background removal is usually the\nfirst step of target detection algorithm in sequential frame images. In this paper,\nan adaptive multi-exposure time preserving star edge small area filtering\nbackground removal algorithm is proposed, which can suppress the background\nand preserve the target and star edges. This algorithm not only ensures\nthe accuracy of centroid and orbit determination, but also reduces false\nalarm and improves tracking accuracy.
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