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DOI:
:2003.14(8):1388-1393

基于矩形拟合的人体检测
孙庆杰,吴恩华
(中国科学院,软件研究所,计算机科学重点实验室,北京,100080;中国科学院,软件研究所,计算机科学重点实验室,北京,100080;澳门大学,科学技术学院,澳门)
Human Detection Based on Rectangle Fitting
SUN Qing-Jie,WU En-Hua
()
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Received:September 11, 2002    Revised:November 05, 2002
> 中文摘要: 提出了一种在单幅图像中检测人体的新算法.将人体看作由躯干和四肢构成.用一个四边形拟合躯干,用一个或者两个四边形拟合每个肢体.人体检测就是寻找满足一定几何和拓扑约束的四边形组合.首先检测与拟合图像中的矩形区域,然后搜索满足几何和拓扑约束的矩形组合.如果该矩形组合的概率大于阈值,则调整各个矩形顶点的坐标,以便得到一个紧凑的人体模型表示.最后,重新计算该紧凑模型的概率.实验结果表明,该方法可以用于基于内容的图像检索以及基于视频的人体运动分析.
Abstract:A new algorithm for human detection in a static image is proposed in this paper. Human is seen as a model constructed by a torso and four limbs. The torso is fitted by a quadrangle, and each limb is fitted by one or two quadrangles. Detecting human is to search a combination of quadrangles constrained by some geometrical and topological relations. The first step is to detect and fit rectangles in the image, and then try to search some reasonable combinations of rectangles that should satisfy the geometrical and topological relations. If the probability of the combination is more than a fixed threshold, the vertex positions of the rectangles are adjusted to get a compact model of human in that image. At last, the probability of the compact model is recalculated. Experimental results show that this algorithm can be applied in the content-based image retrieval and the analysis of human motion based on video.
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基金项目:Supported by the National Natural Science Foundation of China under Grant Nos.69873044, 60033010 (国家自然科学基金); the National Grand Fundamental Research 973 Program of China under Grant No.2002CB312100 (国家重点基础研究发展规划(973) Supported by the National Natural Science Foundation of China under Grant Nos.69873044, 60033010 (国家自然科学基金); the National Grand Fundamental Research 973 Program of China under Grant No.2002CB312100 (国家重点基础研究发展规划(973)
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孙庆杰,吴恩华.基于矩形拟合的人体检测.软件学报,2003,14(8):1388-1393

SUN Qing-Jie,WU En-Hua.Human Detection Based on Rectangle Fitting.Journal of Software,2003,14(8):1388-1393