BaiKhao (rice leaf) app: a mobile device-based application in analyzing the color level of the rice leaf for nitrogen estimation

Yuttana Intaravanne; Sarun Sumriddetchkajorn

doi:10.1117/12.2001120

30 November 2012 BaiKhao (rice leaf) app: a mobile device-based application in analyzing the color level of the rice leaf for nitrogen estimation

Yuttana Intaravanne, Sarun Sumriddetchkajorn

Author Affiliations +

Proceedings Volume 8558, Optoelectronic Imaging and Multimedia Technology II; 85580F (2012) https://doi.org/10.1117/12.2001120
Event: Photonics Asia, 2012, Beijing, China

Abstract

As the color level of the rice leaf corresponds to the nitrogen status of rice in the field, farmers use a leaf color chart (LCC) to identify the color level of the rice leaf in order to estimate the amount of N fertilizer needed for the rice field. However, the ability of the farmers and degeneration of the LCC color affect the accuracy in reading the rice leaf color level. In this paper, we propose a mobile device-based rice leaf color analyzer called “BaiKhao” (means rice leaf in Thai). Our key idea is to simultaneously capture and process the two-dimensional (2-D) data scattered and reflected from the rice leaf and its surrounding reference, thus eliminating expensive external components and alleviating the environmental fluctuation but yet achieving a high accuracy. Our field tests using an Android-based mobile phone show that all important leaf color levels of 1, 2, 3, and 4 can be correctly identified. Additional key features include low cost and ease of implementation with highly efficient distribution through the internet.

Citation Download Citation

Yuttana Intaravanne and Sarun Sumriddetchkajorn "BaiKhao (rice leaf) app: a mobile device-based application in analyzing the color level of the rice leaf for nitrogen estimation", Proc. SPIE 8558, Optoelectronic Imaging and Multimedia Technology II, 85580F (30 November 2012); https://doi.org/10.1117/12.2001120

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