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Proceedings Paper

Development of a NDVI detector based on optics and spectroscopy
Author(s): Wei Yang; Minzan Li; Hong Sun; Ruijiao Zhao
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Paper Abstract

A NDVI detector is developed based on ground-based remote sensing, which uses proper wavebands and embeds a new optimization algorithm of nitrogen fertilization. The detector has two main units, optical unit and electronic unit. In optical unit there are four special different photoelectrical sensors used for detecting sunlight incidence and reflect light of plant canopy in red and NIR wavebands, respectively. Analog signals measured by sensors are amplified and then converted to digital in electronic unit. After processing the digital signal, NDVI of the plant can be calculated. Performance and stability experiments are conducted to cucumber plants in greenhouse. The results show that the detector has a good stability. In order to eliminate the error from sunlight a new artificial light source is suggested.

Paper Details

Date Published: 15 November 2011
PDF: 7 pages
Proc. SPIE 8335, 2012 International Workshop on Image Processing and Optical Engineering, 83350I (15 November 2011); doi: 10.1117/12.919760
Show Author Affiliations
Wei Yang, China Agricultural Univ. (China)
Minzan Li, China Agricultural Univ. (China)
Hong Sun, China Agricultural Univ. (China)
Ruijiao Zhao, China Agricultural Univ. (China)

Published in SPIE Proceedings Vol. 8335:
2012 International Workshop on Image Processing and Optical Engineering
Hai Guo; Qun Ding, Editor(s)

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