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Proceedings Paper

Application of multispectral systems for the diagnosis of plant diseases
Author(s): Jie Feng; Ningfang Liao; Guolong Wang; Yongdao Luo; Minyong Liang
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Paper Abstract

Multispectral imaging technique combines space imaging and spectral detecting. It can obtain the spectral information and image information of object at the same time. Base on this concept, A new method proposed multispectral camera system to demonstrated plant diseases. In this paper, multispectral camera was used as image capturing device. It consists of a monochrome CCD camera and 16 narrow-band filters. The multispectral images of Macbeth 24 color patches are captured under the illumination of incandescent lamp in this experiment The 64 spectral reflectances of each color patches are calculated using Spline interpolation from 400 to 700nm in the process. And the color of the object is reproduced from the estimated spectral reflectance. The result for reproduction is contrast with the color signal using X-rite PULSE spectrophotometer. The average and maximum ΔΕ*ab are 9.23 and 12.81. It is confirmed that the multispectral system realizes the color reproduction of plant diseases from narrow-band multispectral image.

Paper Details

Date Published: 5 March 2008
PDF: 7 pages
Proc. SPIE 6623, International Symposium on Photoelectronic Detection and Imaging 2007: Image Processing, 66230E (5 March 2008); doi: 10.1117/12.791278
Show Author Affiliations
Jie Feng, Beijing Institute of Technology (China)
Yunnan Normal Univ. (China)
Ningfang Liao, Beijing Institute of Technology (China)
Guolong Wang, Beijing Institute of Technology (China)
Yongdao Luo, Beijing Institute of Technology (China)
Minyong Liang, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 6623:
International Symposium on Photoelectronic Detection and Imaging 2007: Image Processing
Liwei Zhou, Editor(s)

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