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A Plant Leaf Geometric Parameter Measurement System Based on the Android Platform.

Haiyun Liu1,2, Xu Ma3, Ming Tao4

  • 1College of Engineering, South China Agricultural University, Guangzhou 510642, China. haiyun0420@stu.scau.edu.cn.

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|April 24, 2019
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Summary
This summary is machine-generated.

This study developed an Android phone system for accurate plant leaf geometry measurement. The mobile app efficiently measures leaf parameters like length and area, aiding plant management.

Keywords:
Android systemdynamic referenceimage analysisplant leaf

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Area of Science:

  • Agricultural technology
  • Computer vision
  • Plant science

Background:

  • Accurate plant leaf geometry measurement is crucial for effective plant management.
  • Existing methods can be time-consuming or require specialized equipment.

Purpose of the Study:

  • To develop an efficient and accurate leaf geometry parameter measurement system using the Android mobile phone platform.
  • To enable measurement of leaf length, width, perimeter, and area.

Main Methods:

  • Image pre-processing and distortion calibration were applied to leaf images.
  • A novel method using the leaf's positive circumscribed rectangle as a reference object was implemented for improved accuracy.
  • Measurements were validated against standard methods in both lab and outdoor conditions.

Main Results:

  • The developed system demonstrated high correlation with standard measurement methods.
  • Measurement accuracy was minimally affected by variations in test distance (235-260 mm) and angle (0-45 degrees).
  • Different mobile phones yielded consistent results for the same leaf, indicating reliability.

Conclusions:

  • The Android-based system provides a highly accurate and reliable tool for measuring plant leaf geometry parameters.
  • This technology offers a practical and accessible solution for plant management applications.
  • The system's robustness across different conditions and devices makes it a valuable tool for researchers and growers.