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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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？基于steiner点的移动目标遮挡恢复方法？
DOI: 10.13232/j.cnki.jnju.2015.02.027, PP. 405-414
Keywords: 特征点,移动steiner点,遮挡处理,steiner点恢复
Abstract:
？steiner点是物体的一个特征点，具有高稳定性和低离心性。由于其良好的鲁棒性，在跟踪预测移动目标位置有很好的效果，但steiner点对移动物体边界有依赖，一旦移动物体部分被遮挡，steiner点会丢失。为解决这一问题，从特征点的几何性质出发，通过推导有关遮挡的几何性质后，提出了一种解决遮挡问题的理论方法。首先提取移动物体的边界，经过凸壳处理、多边形逼近过程后，转化成易于处理的凸多边形。利用推导出的遮挡结论，计算出移动目标steiner点的偏移向量，再结合未被遮挡区域的steiner点，从而可以计算出移动目标的特征点――steiner点的位置，从而解决被遮挡这种问题。通过一系列人工合成图像的实验，结果表明，目标移动部分被遮挡，steiner点可以恢复出来。
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