Abstract
The objective of this study is to clarify the effect of the structure under canopy on the hyperspectal imagery. Research site was row of the tree Prunus × yedoensis in Rissho University. The difference of spectrum between pixels was examined by the principal component analysis. The result of the principal component analysis on the reflectance showed that the influence of the shadow appeared and the influence of the surface under the crown did not detect. The result of the principal component analysis on the second differential absorbance showed that the influence of surface under the crown was able to be detected from the hyperpectral image without receiving influence of the shadow.