| 摘要 |
PROBLEM TO BE SOLVED: To overcome the problems in extracting an object by spectral analysis, wherein a large error exists when using two bands (wavelengths) in conventional use, and band selection is difficult when using three bands or more, and also a conventional sensor having a narrow wavelength interval cannot be used because it cannot extract small spectral changes. SOLUTION: A vegetated region is analyzed by detecting the amount of spectral changes (a spectrum protruding downward in detecting reflectance) from a wavelength region having a wavelength shorter than that of the RE wavelength region to the RE wavelength region and detecting the amount of spectral changes (a rising spectrum in detecting reflectance) from the RE wavelength region to a wavelength region having a wavelength longer than that of the RE wavelength region. COPYRIGHT: (C)2011,JPO&INPIT
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