Open AccessAcquirement of anisotropy reflectance with the multi-directional hyperspectral remote sensing simulation facility (MHSRS2F)
Author(s) -
Haitao Zhao,
Bolun Cui,
Guorui Jia,
Na Li,
Xudong Li,
Fuxi Gan,
Junchuan Yu
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.028760
Subject(s) - skylight , reflectivity , optics , hyperspectral imaging , anisotropy , remote sensing , bidirectional reflectance distribution function , sunlight , reflection (computer programming) , materials science , physics , environmental science , geology , computer science , geography , programming language , archaeology
The reflectance factor acquired in laboratory makes a good contribution to spectral library for remote sensing. However, this reflectance factor is a different quantity from that acquired in the field. To bridge the gap between them, the spectral and the spatial characteristics of sunlight and skylight are analyzed. A facility called MHSRS 2 F is introduced to acquire the anisotropy reflectance in laboratory under the illumination of simulated sunlight and skylight. This reflectance factor is the same quantity as that acquired in field. The amplitude and shape differences between the reflectance factors acquired in laboratory and in field are reduced for 27% and 31% reflectively.