29 April 2009 Subpixel visibility in passive millimeter-wave systems
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Passive Millimeter Wave Systems often have low spatial resolution which limits the size of detectable objects. However, there are some special cases in which objects that do not completely fill a pixel may be readily detected. The geometry of wires and pipes make them particularly visible, although the contrast can vary rapidly with detector - target geometry. In this paper a model is developed for the contrast of a reflective cylinder against an arbitrary background. Experimental data is presented from a high clutter environment that shows sub pixel detection in practical environments.
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Albert Pergande, Albert Pergande, "Subpixel visibility in passive millimeter-wave systems", Proc. SPIE 7309, Passive Millimeter-Wave Imaging Technology XII, 730906 (29 April 2009); doi: 10.1117/12.811996; https://doi.org/10.1117/12.811996

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