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| Method for Estimation of Grow Index of Tealeaves Based on Bi-Directional Reflectance Distribution Function: BRDF Measurements With Ground Based Network Cameras
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Full
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Source |
International Journal of Applied Sciences (IJAS) |
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Table of Contents |
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Download
Complete Issue PDF(1.84MB) |
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Volume: 1 Issue: 2 |
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Pages: |
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Publication
Date: December 2010 |
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ISSN
(Online): 2180-1258 |
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Pages |
52 - 62 |
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Author(s) |
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Published
Date |
04-04-2011 |
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Publisher |
CSC
Journals, Kuala Lumpur,
Malaysia |
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ADDITIONAL
INFORMATION |
| Keywords Abstract References Cited by Related Articles Collaborative
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KEYWORDS: tealeaves, nitrogen content, fiber content, BRDF, Grow Index, Theanine |
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| Estimation methods for grow index as well as total nitrogen and fiber contents in tealeaves based on spectral reflectance and Bi-directional Reflectance Distribution Function: BRDF measurements with ground based network cameras
is proposed. Also tea estate monitoring system with network cameras is proposed. Due to a fact that Near Infrared: NIR camera data shows a good
correlation to total nitrogen while that shows negative correlation to fiber contents, it is possible to estimate nitrogen and fiber contents in tealeaves with NIR camera data. Through a comparison between actual direct measured and the
estimated total nitrogen and fiber contents shows a good correlation so that a validity of the proposed method is confirmed. Also it is found that monitoring of a grow index of tealeaves with BRDF measured with networks cameras is capable.
Thus it is concluded that a monitoring of tea estates is capable with network cameras of visible and NIR. |
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| Kohei Arai : Colleagues
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