Function of polarization on the bidirectional reflectance factor of vegetation samples

被引：0
|
作者：
Sun Z. [1 ]
Zhao Y. [1 ]
Lu S. [1 ]
Lyu Y. [2 ]
机构：
[1] School of Geographical Science, Northeast Normal University, Changchun
[2] College of Urban and Environmental Science, Changchun Normal University, Changchun
来源：
Zhao, Yunsheng (zhaoys975@nenu.edu.cn) | 2018年 / Science Press卷 / 22期
基金：
中国国家自然科学基金;
关键词：
Bidirectional reflectance distribution model; Multi-angle; Polarized remote sensing; Specular reflection; Vegetation;
D O I：
10.11834/jrs.20188173
中图分类号：
学科分类号：
摘要：
In this study, we investigate the relationship between polarization and the structural property of vegetation covers to deepen our understanding of the physical mechanism of multiangle polarized light from natural surfaces, which is basic for describing the properties of Earth's surface using polarized remote sensing. In this study, we explain the physical mechanism of the polarization properties of vegetation on the basis of the Fresnel equation and its derivative polarized reflectance models and compare them with the polarization measurement results of a single leaf and two vegetation covers, which are measured using a goniometer system. The Fresnel equation is effective for explaining the polarization of vegetation in forward-scattering directions, however, other theories should be considered in explaining polarization in backward-scattering directions. The polarization of vegetation covers can be considered as "noise" when we use the photometric signal, such as the separation of specular portion (which is computed by bidirectional polarized reflectance factor) from the total reflectance factor, which decreases the difference between BRF model results and measured results from 30% to 20%. Moreover, it possesses potentially useful information, such as the relationship between model parameter and vegetation cover roughness, which can characterize the structure of vegetation covers. Investigating the polarization of vegetation contributes to the understanding of the optical property of natural surfaces and potentially provides an additional and effective method for remote-sensing applications of vegetation covers. Our study also potentially provides a method for measuring the polarization of vegetation covers and demonstrates the physical rules of polarization in vegetation covers, such as the flatter the vegetation samples, the more polarization can be measured, and separating polarization from the total reflectance factor contributes to the improvement of the ability of current BRF models to simulate vegetation reflection. These results highlight the efficiency of polarized remote sensing on characterizing natural surfaces such as vegetation covers. © 2018, Science Press. All right reserved.
引用
收藏
页码：947 / 956
页数：9
相关论文
共 30 条
  • [21] Sun Z.Q., Wu Z.F., Zhao Y.S., Semi-automatic laboratory goniospectrometer system for performing multi-angular reflectance and polarization measurements for natural surfaces, Review of Scientific Instruments, 85, (2014)
  • [22] Suomalainen J., Hakala T., Puttonen E., Peltoniemi J., Polarised bidirectional reflectance factor measurements from vegetated land surfaces, Journal of Quantitative Spectroscopy and Radiative Transfer, 110, 12, pp. 1044-1056, (2009)
  • [23] Talmage D.A., Curran P.J., Remote sensing using partially polarized light, International Journal of Remote Sensing, 7, 1, pp. 47-64, (1986)
  • [24] Tanre D., Breon F.M., Deuze J.L., Dubovik O., Ducos F., Francois P., Goloub P., Herman M., Lifermann A., Waquet F., Remote sensing of aerosols by using polarized, directional and spectral measurements within the A-Train: the PARASOL mission, Atmospheric Measurement Techniques, 4, 7, pp. 1383-1395, (2011)
  • [25] Tyo J.S., Goldstein D.L., Chenault D.B., Shaw J.A., Review of passive imaging polarimetry for remote sensing applications, Applied Optics, 45, 22, pp. 5453-5469, (2006)
  • [26] Vanderbilt V.C., Grant L., Plant canopy specular reflectance model, IEEE Transactions on Geoscience and Remote Sensing, GE-23, 5, pp. 722-730, (1985)
  • [27] Vanderbilt V.C., Grant L., Biehl L.L., Robinson B.F., Specular, diffuse, and polarized light scattered by two wheat canopies, Applied Optics, 24, 15, pp. 2408-2418, (1985)
  • [28] Wang H., Sun X.B., Sun B., Hong J., Evaluation of land surface polarization models based on airborne advanced atmosphere multi-angle polarization radiometer measurements, Acta Optica Sinica, 34, 1, (2014)
  • [29] Xiang K.S., Cheng T.H., Gu X.F., Guo H., Chen H., Wang Y., Wei X., Bao F.W., Polarized properties of typical surface types over China based on the multi-angular polarized remote sensing measurements, Acta Physica Sinica, 64, 22, (2015)
  • [30] Xie D.H., Gu X.F., Cheng T.H., Yu T., Li Z.Q., Chen X.F., Chen H., Guo J., Research on the bidirectional reflectance of typical urban surface types measured by the directional polarimetric camera, Acta Physica Sinica, 61, 7, (2012)
123