Detection of leaf structures in close-range hyperspectral images using morphological fusion

Abstract

Close-range hyperspectral images are a promising source of information in plant biology, in particular, for in vivo study of physiological changes. In this study, we investigate how data fusion can improve the detection of leaf elements by combining pixel reflectance and morphological information. The detection of image regions associated to the leaf structures is the first step toward quantitative analysis on the physical effects that genetic manipulation, disease infections, and environmental conditions have in plants. We tested our fusion approach on Musa acuminata (banana) leaf images and compared its discriminant capability to similar techniques used in remote sensing. Experimental results demonstrate the efficiency of our fusion approach, with significant improvements over some conventional methods.

Keywords:

• Hyperspectral
• fusion
• morphology
• plant biology

Acknowledgements

Wenzhi Liao is a postdoctoral fellow of the Research Foundation Flanders (FWO-Vlaanderen) and acknowledges its support.