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JRM Vol.30 No.2 pp. 173-179
doi: 10.20965/jrm.2018.p0173
(2018)

Development Report:

Development of a Tomato Volume Estimating Robot that Autonomously Searches an Appropriate Measurement Position – Basic Feasibility Study Using a Tomato Bed Mock-Up –

Rui Fukui, Kenta Kawae, and Shin’ichi Warisawa

Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo
5-1-5 Kashiwa-no-ha, Kashiwa-shi, Chiba 277-8563, Japan

Received:
September 4, 2017
Accepted:
March 4, 2018
Published:
April 20, 2018
Keywords:
smart-agriculture, mobile robot, image processing, growth monitoring, data evaluation
Abstract
Development of a Tomato Volume Estimating Robot that Autonomously Searches an Appropriate Measurement Position – Basic Feasibility Study Using a Tomato Bed Mock-Up –

Tomato monitoring procedures including immediate evaluation

Recently, the promotion of the utilization of data mining in Japanese agriculture has become noteworthy. The purpose of such data mining is to transform the knowledge and know-how of experienced farmers into an explicit form. In particular, it is required for creating a tomato cultivation database to acquire the growth data of not only red mature tomatoes, but also green immature tomatoes. We are developing a robot to estimate the volume of a tomato that actively searches an appropriate measurement position. While patrolling a tomato bed, the robot first detects a tomato by using saliency-based image processing technology. When a tomato has been detected, a motion stereo camera installed on the robot generates a point cloud and a clustering process extracts the fruit region. A three-point-algorithm-based ellipse detector then estimates the width of the extracted fruit region. Finally, the estimation result is immediately evaluated using multiple indicators. This immediate evaluation process rejects unreliable data and suggests the correct position for re-measurement.

Cite this article as:
R. Fukui, K. Kawae, and S. Warisawa, “Development of a Tomato Volume Estimating Robot that Autonomously Searches an Appropriate Measurement Position – Basic Feasibility Study Using a Tomato Bed Mock-Up –,” J. Robot. Mechatron., Vol.30, No.2, pp. 173-179, 2018.
Data files:
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Last updated on Nov. 12, 2018