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Motion Geometric Active Contours: Tracking Nonrigid Objects in Clutter Background 被引量:1
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作者 岑峰 Qi Feihu 《High Technology Letters》 EI CAS 2003年第3期19-23,共5页
MGAC (Motion Geometric Active Contours), a new variational framework of geometric active contours to track multiple nonrigid moving objects in the clutter background in image sequences is presented. This framework, in... MGAC (Motion Geometric Active Contours), a new variational framework of geometric active contours to track multiple nonrigid moving objects in the clutter background in image sequences is presented. This framework, incorporating with the motion edge information, consists of motion detection and tracking stages. At the motion detection stage, the motion edge map provides an approximate edge map of the moving objects. Then, a tracking stage, merely using the static edge information, is considered to improve the motion detection result. Force field regularization method is used to extend the capture range of the edge attraction force field in both stages. Experiments demonstrate that the proposed framework is valid for tracking multiple nonrigid objects in the clutter background. 展开更多
关键词 object tracking active contours Level Set Theory clutter background
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Research on Gaussian distribution preprocess method of infrared multispectral image background clutter
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作者 张伟 武春风 +1 位作者 邓盼 范宁 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2004年第5期513-515,共3页
This paper introduces a sliding-window mean removal high pass filter by which background clutter of infrared multispectral image is obtained. The method of selecting the optimum size of the sliding-window is based on ... This paper introduces a sliding-window mean removal high pass filter by which background clutter of infrared multispectral image is obtained. The method of selecting the optimum size of the sliding-window is based on the skewness-kurtosis test. In the end, a multivariate Gaussian distribution mathematical expression of background clutter image is given. 展开更多
关键词 infrared multispectral imagery background clutter Sliding-window mean removal Skewness-kurtosis test multivariate Gaussian distribution
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