基于HOG特征及稀疏外观模型的目标跟踪

2016-07-09 13:18刘天池
软件导刊 2016年6期
关键词:稀疏表示

刘天池

摘要:提出一种基于HOG特征结合稀疏外观模型(HOG-SPAM)的目标跟踪算法。提取目标模版和候选目标的HOG特征,HOG特征对图像的几何形变、光照以及阴影变化具有较强的鲁棒性;使用提取的HOG特征构建目标的稀疏外观模型,稀疏外观模型对目标外观变化具有鲁棒性,采用对齐汇聚方法度量候选目标与目标之间的相似性。在多个基准图像序列中,与已有流行方法相比,HOG-SPAM算法在目标外观变化和光照变化情况下有较好的鲁棒性,同时在复杂背景情况下也具有一定鲁棒性。

关键词:稀疏表示;HOG特征;稀疏外观模型

DOIDOI:10.11907/rjdk.161559

中图分类号:TP301文献标识码:A文章编号:1672-7800(2016)006-0013-03

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