Translator Disclaimer
Paper
12 December 2018 Surface properties estimation of sandy land based on multi-angle polarized image information
Author Affiliations +
Proceedings Volume 10844, Advanced Laser Technology and Applications; 108440N (2018) https://doi.org/10.1117/12.2505204
Event: International Symposium on Optoelectronic Technology and Application 2018, 2018, Beijing, China
Abstract
In this paper a method to estimate surface roughness of sand land from multi-angle and multi-waveband polarized detections is presented. Firstly, the polarized bidirectional reflectance distribution function (pBRDF) of the sand land’s surface based on the microfacet theory was established. Then three sand samples with particle sizes of 0.5 mm, 0.7 mm and 1 mm were obtained by a series of sieves. And the polarization information was acquired by full-polarized multispectral imaging system based on Liquid Crystal Variable Retarder (LCVR). We used the nonlinear least squares method to estimate the surface roughness of from the measured data. Lastly, the analysis results show that the accuracy of sand roughness estimation is improved as the number of the angles (i.e., source incident angles and detection angles) and wavebands increase until the estimation accuracy saturates. It is indicated that the method based on polarization imaging detection to estimate sandy land surface roughness is effective.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bo Jia, Ying Zhang, Huijie Zhao, Jiabin Xuan, Liyi Luo, and Na Li "Surface properties estimation of sandy land based on multi-angle polarized image information", Proc. SPIE 10844, Advanced Laser Technology and Applications, 108440N (12 December 2018); https://doi.org/10.1117/12.2505204
PROCEEDINGS
6 PAGES


SHARE
Advertisement
Advertisement
Back to Top