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Proceedings Paper

Polarization-difference imaging of objects in smoke environment
Author(s): Lu Liu; Binkang Li; Shaohua Yang; Mingan Guo; Ming Yan; Tongding Luo; Gang Li; Shuai Gao
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Paper Abstract

Target detection in smoke environment using laser active imaging is of great research significance. According to the characteristics of light propagating in smoke environment, the method of laser transmission imaging is adopted and polarization-difference (PD) imaging technology is used to suppress the effect of scattering light on imaging quality. PD imaging method needs to record two target images of different polarization directions and then the two images are subtracted. A correction factor α is used to match the scattering light intensity of the two images, so scattering light can be mostly filtered out. Experiments show that the quality of images obtained by PD imaging method is better than intensity ones. The PD images have big noisy when smoke concentration is high. A method which combines median filtering with multi-scale morphological edge detection is proposed to process images. It can suppress image noise, improve image contrast and edge sharpness effectively.

Paper Details

Date Published: 15 October 2015
PDF: 8 pages
Proc. SPIE 9676, AOPC 2015: Optical Design and Manufacturing Technologies, 96760J (15 October 2015); doi: 10.1117/12.2199218
Show Author Affiliations
Lu Liu, Northwest Institute of Nuclear Technology (China)
Binkang Li, Northwest Institute of Nuclear Technology (China)
State Key Lab. of Intense Pulsed Radiation Simulation and Effect (China)
Shaohua Yang, Northwest Institute of Nuclear Technology (China)
State Key Lab. of Intense Pulsed Radiation Simulation and Effect (China)
Mingan Guo, Northwest Institute of Nuclear Technology (China)
Ming Yan, Northwest Institute of Nuclear Technology (China)
Tongding Luo, Northwest Institute of Nuclear Technology (China)
Gang Li, Northwest Institute of Nuclear Technology (China)
Shuai Gao, Northwest Institute of Nuclear Technology (China)


Published in SPIE Proceedings Vol. 9676:
AOPC 2015: Optical Design and Manufacturing Technologies
Lin Li; Kevin P. Thompson; Ligong Zheng, Editor(s)

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