@article{ref1,
title="Nominal Body Contour Reconstruction for Millimeter-Wave Characterization of Suicide Bomber Explosives",
journal="IEEE Transactions on Antennas and Propagation",
year="2022",
author="Tajdini, M.M. and Rappaport, C.M.",
volume="70",
number="4",
pages="2960-2968",
abstract="In order to improve the speed of passenger screening while preserving the effective capability to detect more sophisticated threats, airport security imaging systems must be able to accurately characterize concealed body-worn objects. In addition to improving the passenger experience, this system capability will enhance airport security for the traveling public. This article presents a real-time, fully automatic algorithm for the wideband millimeter-wave (mm-wave) radar reconstruction of the nominal human body contours, even in the presence of an affixed weak dielectric object or when a portion of the body cross section is not captured by the imaging scanner. The algorithm extracts the main contours from a noisy collection of 3-D reconstructed reflectivity and approximates the nominal human body cross section via fitting a low-order angular Fourier series. This important step is essential for precise characterization of concealed body-worn explosives. A ranking algorithm is developed as a metric for the nominal body reconstruction accuracy. We verify the developed algorithm by applying it to the actual images of the high definition-advanced imaging technology (HD-AIT) system, a laboratory prototype mm-wave scanning system developed recently by the U.S. Department of Homeland Security (DHS). The reconstructed body contours may be used to estimate the electric permittivity of the concealed person-worn objects. © 1963-2012 IEEE.<p /><p>Language: en</p>",
language="en",
issn="0018-926X",
doi="10.1109/TAP.2021.3118805",
url="http://dx.doi.org/10.1109/TAP.2021.3118805"
}