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第三届图像图形技术与应用学术会议

作者： Robert S.Ledley Georgetown University

3D visualization of images generated by Computerized Tomography (CT) and Magnetic Resonance Imaging(MRI) has shown important uses in medical diagnoses,treatment and ***,images generated by CT or MRI are examined by doctors at a later *** airport security inspection systems, however,images have to be visualized in ***,inspectors can only view 2D images and the content of the images can only be identified by human eyes. Real-time 3D visualization and automatic content identification are still a challenge. In this paper,we discuss technologies in 3D image processing and content identification. Applications that have been developed in medicine and airport security are also *** and experiments in medical imaging were performed on a simulation system at the National Biomedical Research Foundation(Georgetown University Medical Center).Research and experiments in airport security system were performed at a high-tech company in Washington DC.

关键词： 3D medical imaging content identification airport security

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Practical millimeter-wave holographic imaging system with good robustness

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Chinese Optics Letters 2016年第10期14卷 43-47页

作者：朱玉琨杨明辉吴亮孙芸孙晓玮 Key Laboratory of Terahertz Technology Shanghai Institute of Microsystem and Information Technology Shanghai 200050 China University of Chinese Academy of Sciences Beijing 100049 China

A practical millimeter-wave （MMW） holographic imaging system with good robustness is developed for the detection of concealed weapons at security checkpoints, especially at the airport. The system is used to scan the passenger and detect any weapons hidden in their clothes. To reconstruct the three dimensional image, a holographic MMW imaging algorithm based on aperture synthesis and backscattering is presented. The system is active and works at 28-33 GHz. As a practical imaging system, the robustness is analyzed in detail in terms of the peak signal-to-noise ratio.

关键词： airport security Holography Imaging systems Millimeter waves

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