Laser & Optoelectronics Progress, Volume. 54, Issue 6, 61101(2017)
Low Contrast Target Detection Based on Visible Light Polarization Imaging System
In order to detect the low contrast targets in the complicated background, the time division full polarization imaging system based on dual liquid crystal variable retarders (LCVR) is developed, and an optimum combination scheme based on the minimum 2-norm is proposed in the control of LCVR phase retardation. The system instrument matrix is calibrated with the optimum phase retardation combination, and the field imaging experiment is carried out when the green coating targets are hidden in the shade. The experimental result shows that the contrast between the target and its background is almost zero in the ordinary intensity image and 0.2525 in the S0 image obtained by inversion. The achieved result further proves that the system can effectively realize low-contrast target detection in complex background.
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Hu Dongmei, Liu Quan, Niu Guocheng. Low Contrast Target Detection Based on Visible Light Polarization Imaging System[J]. Laser & Optoelectronics Progress, 2017, 54(6): 61101
Category: Imaging Systems
Received: Jan. 20, 2017
Accepted: --
Published Online: Jun. 8, 2017
The Author Email: Dongmei Hu (haitianme@163.com)