Work place: Sasaki Green Tea Company, Japan
E-mail: teafoods@lily.ocn.ne.jp
Website:
Research Interests:
Biography
Yoshihiko Sasaki received BS degree from Tokyo Agriculture University in 1981. He was with Ogasa Green Tea Co. Ltd.\in 1982. He became President of Ogasa Green Tea Company. in 1993. He is now President of Sasaki Green Tea Company since 2003.
By Kohei Arai Yoshihiko Sasaki Shihomi Kasuya Hideto Matusura
DOI: https://doi.org/10.5815/ijitcs.2015.07.01, Pub. Date: 8 Jun. 2015
Method for most appropriate tealeaves harvest timing with Near Infrared (NIR) camera images is proposed. In the proposed method, NIR camera images of tealeaves are used for estimation of nitrogen content in tealeaves. The nitrogen content is highly correlated to Theanine (amid acid) content in tealeaves. Theanine rich tealeaves taste good. Therefore, tealeaves quality can be estimated with NIR camera images. Also, leaf area of tealeaves is highly correlated to NIR reflectance of tealeaf surface. Therefore, not only tealeaf quality but also harvest mount can be estimated with NIR camera images. Experimental results shows the proposed method does work for estimation of appropriate tealeaves harvest timing with NIR camera images.
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