Abstract
Hyper spectral remote sensing is widely used to identify ground objects as a result of the advantages of ground radiation intensity characteristics and spectral position characteristics, in which inversion of vegetation components is the difficult point and hotspot. In this study, Huma county of Heilongjiang Province was selected as the study area, the canopy spectra of four types of typical vegetation were measured in situ firstly, including mongolian oak, cotton grass, lespedeza and white birch. Then, on the basis of analyzing the canopy spectral characteristics and their parameterization, the spectral differences of different vegetations were located, and the parameterization method of characteristics identification was determined. Finally, Hyperion data were used to calculate the canopy albedos based on the bidirectional reflectance model of vegetation canopies, and to map the vegetation components in the study area by use of linear spectral mixture model. The results showed that inversion of vegetation components in high vegetation-covered area was accurate using the canopy albedos and liner spectral mixture model, and was identical with the field sampling, which validated the feasibility of canopy albedos and liner spectral mixture model for the inversion of vegetation components.
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Acknowledgements
This study was supported by the National Natural Science Foundation of China (No. 40971187), the funded by Open Research Fund Program of Key Laboratory of Digital Mapping and Land Information Application Engineering, National Administration of Surveying, Mapping and Geoinformation (No. GCWD201402). In addition, we wish to express our gratitude to Chiba Institutes of Technology of Japan for their instruments and the experiment site.
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Wang, M., Niu, X., Yang, Q. et al. Inversion of Vegetation Components Based on the Spectral Mixture Analysis Using Hyperion Data. J Indian Soc Remote Sens 46, 1–8 (2018). https://doi.org/10.1007/s12524-017-0661-2
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DOI: https://doi.org/10.1007/s12524-017-0661-2