Effects of leaf hair on leaf reflectance and hyperspectral vegetation indices

Many hyperspectral vegetation indices have been used to estimate the biochemical contents such as pigment content, nondestructively. These reflectance indices are influenced by leaf hair, and the existence of the leaf hair affects the performance of the indices on the estimation of the biochemical c...

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Bibliographic Details
Published in:Guang pu xue yu guang pu fen xi = Guang pu, Vol. 32, No. 2 (2012), p. 439-44
Main Author: Ge, Hao (Author)
Other Involved Persons: Lu, Shan ; Zhao, Yun-sheng
Format: Article
Language:Chinese
ISSN:1000-0593
Item Description:Date Completed 17.07.2015
Date Revised 01.12.2018
published: Print
Citation Status MEDLINE
Copyright: From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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  • Many hyperspectral vegetation indices have been used to estimate the biochemical contents such as pigment content, nondestructively. These reflectance indices are influenced by leaf hair, and the existence of the leaf hair affects the performance of the indices on the estimation of the biochemical contents. The present research studied the possible effects of the leaf hair on the reflectance of the same leaf before and after removal of leaf hair. The authors found that dehairing had decreased the reflectance between wavelength 400 and 1 000 nm, and the decrease depends on the wavelength. The changes of 39 hyperspectral indices before and after the hair removal were compared. The results revealed that some indices that only use visible wavebands or the near infrared wavebands such as CTR1: R695/R420, D740/D720, WBI: R900/R970, R860/(R550 x R708) and REP (Red-edge position) were not affected much by the dehairing process and are thought relatively robust to estimate the biochemical contents