In this paper, we thoroughly examined the performance enhancement of laser range gating in comparison with a color camera representing the human vision. On the one hand, we studied the influence of different types of obscurants and showed that the type of obscurant leads to very different results. On the other hand, we examined the influence of different technical parameters on the laser side and on the camera side. The influence of range gating and of the gate shape was studied. These experiments led us to conclude that it is necessary to combine a short laser pulse with a short camera integration time to acquire contrasted images in dense scattering media.
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Frank Christnacher, Stéphane Schertzer, Nicolas Metzger, Emmanuel Bacher, Jean-Michel Poyet, "On the real performance of SWIR range-gated active imaging in scattering media," Proc. SPIE 9987, Electro-Optical and Infrared Systems: Technology and Applications XIII, 998702 (21 October 2016);