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http://dx.doi.org/10.7780/kjrs.2014.30.5.11

An Analysis of Spectral Pattern for Detecting Pine Wilt Disease Using Ground-Based Hyperspectral Camera  

Lee, Jung Bin (Korea Forest Research Institute)
Kim, Eun Sook (Korea Forest Research Institute)
Lee, Seung Ho (Forest Training Institute of the Korea Forest Service)
Publication Information
Korean Journal of Remote Sensing / v.30, no.5, 2014 , pp. 665-675 More about this Journal
Abstract
In this paper spectral characteristics and spectral patterns of pine wilt disease at different development stage were analyzed in Geoje-do where the disease has already spread. Ground-based hyperspectral imaging containing hundreds of wavelength band is feasible with continuous screening and monitoring of disease symptoms during pathogenesis. The research is based on an hyperspectral imaging of trees from infection phase to witherer phase using a ground based hyperspectral camera within the area of pine wilt disease outbreaks in Geojedo for the analysis of pine wilt disease. Hyperspectral imaging through hundreds of wavelength band is feasible with a ground based hyperspectral camera. In this research, we carried out wavelength band change analysis on trees from infection phase to witherer phase using ground based hyperspectral camera and comparative analysis with major vegetation indices such as Normalized Difference Vegetation Index (NDVI), Red Edge Normalized Difference Vegetation Index (reNDVI), Photochemical Reflectance Index (PRI) and Anthocyanin Reflectance Index 2 (ARI2). As a result, NDVI and reNDVI were analyzed to be effective for infection tree detection. The 688 nm section, in which withered trees and healthy trees reflected the most distinctions, was applied to reNDVI to judge the applicability of the section. According to the analysis result, the vegetation index applied including 688 nm showed the biggest change range by infection progress.
Keywords
Pine wilt disease; Ground-based hyperspectral image; Vegetation index; Infection tree detection;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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