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Proceedings Paper

Monitoring of biological activity of plant using difference-image of biospeckle
Author(s): Hirofumi Kadono; Genyoh Takahashi; Satoru Toyooka
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Paper Abstract

In relation to the monitoring the influence of the environmental pollution on the plant, we proposed a difference-image method and performed some preliminary experiments to observe the biological activities of the botanical objects based on the dynamic properties of laser speckles. Two successive speckle images of the plant obtained with a certain delay time are subtracted to show the difference in the two patterns due to the biological activity. In the experiments, validity of the proposed method was examined for the plants under the influence of the artificial acid rain and the ozone exposure. As experimental results, some characteristic changes were observed in the speckle difference images due to the damages, while it was very hard to recognize those changes by the human eye.

Paper Details

Date Published: 19 November 2003
PDF: 2 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.527504
Show Author Affiliations
Hirofumi Kadono, Saitama Univ. (Japan)
Genyoh Takahashi, Saitama Univ. (Japan)
Satoru Toyooka, Saitama Univ. (Japan)


Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life

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