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Abstract

This paper deals with the retrieving of the bidirectional reflectance distribution functions (BRDFs) of the distinct urban cover in the Pearl River Delta (PRD) region employing the high-spatial-resolution multi-angle polarized measurements made by the directional polarimetric camera (DPC). The results show that three BRDF models (RPV, Ross-Roujean and Ross-Li) describe the DPC measurements well. Forest is best fitted by Ross-Li and bare soil is best fitted by Ross-Roujean. Urban and shrub are best fitted by RPV. The results demonstrate that the reflectances of different types of surfaces are different and increase with the increase of scattering angle. The basic theory of investigating surface properties using multi-angle measurements is proposed.

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Funds:Project supported by the National Basic Research and Development Programs of China (973 Program) (Grant No. 2010CB950800), the National Natural Science Foundation of China (Grant No. 41001207), and the Funds of the Chinese Academy of Sciences for Key Topics in Innovation Engineering(Grant No. KZCX2-EW-QN311).

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Vol. 61, Issue 7 - 2012-04-05

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