计算机科学 ›› 2020, Vol. 47 ›› Issue (11A): 244-247.doi: 10.11896/jsjkx.200400032
焦扬, 杨传颖, 石宝
JIAO Yang, YANG Chuan-ying, SHI Bao
摘要： 在刑侦方面,鞋印图像的信息化检索对侦破串并案件有着重要的意义。在大规模的鞋印图像库中准确检索出与现场鞋印同类的图像是现在需要解决的问题之一。在基于内容的图像检索基础上,提出一种支持向量机(Support Vector Machine,SVM)与人工反馈结合的方式。利用K-means聚类算法对SIFT(Scale Invariant Feature Transformation)提取的特征向量聚类,构建鞋印图像特征包,并进行相似度排序,得出初步检索结果。用户以此结果进行相关反馈,通过SVM构造相应分类器,最后根据分类结果计算图像与超平面之间的距离来度量图像的相似度排序,返回二次检索结果。实验结果表明,在不同返回结果中二次检索比初步检索的查全率平均提高了6%。
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