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26 May 2011 A multi-camera positioning system for steering of a THz stand-off scanner
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Stand-off THz imaging to detect concealed treats is a coming technique for security applications. A THz sensor can provide high resolution 3D imagery of a scene. However, efficient scene scanning and management of the THz sensor is a challenging task due to the limited field of view of the sensor and physical scanning limitations. In this paper we discuss the requirements on a scene scanning solution and present a scene scanning technique using a multi-camera system with 3D positioning capabilities. A visual hull method is used to position subjects in the scene. The presented technique relaxes the requirements on the scanning speed of the THz sensor and facilitates an efficient scene scanning solution.
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Maria Axelsson, Mikael Karlsson, and Staffan Rudner "A multi-camera positioning system for steering of a THz stand-off scanner", Proc. SPIE 8022, Passive Millimeter-Wave Imaging Technology XIV, 80220L (26 May 2011);

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