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Updated: Apr 17, 2026

Evaluation of Photosynthetic Behaviors by Simultaneous Measurements of Leaf Reflectance and Chlorophyll Fluorescence Analyses
Published on: August 9, 2019
Quantification of plant chlorophyll content using Google Glass
Bingen Cortazar1, Hatice Ceylan Koydemir, Derek Tseng
1Department of Electrical Engineering, University of California Los Angeles (UCLA), CA 90095, USA. ozcan@ucla.edu http://www.innovate.ee.ucla.edu.
This study presents a novel, cost-effective method for measuring plant chlorophyll concentration using Google Glass. The system provides rapid, accurate chlorophyll estimation for diverse plant species, aiding in plant health monitoring.
Area of Science:
- Agricultural Science
- Environmental Science
- Biotechnology
Background:
- Plant chlorophyll concentration is a key indicator of plant health and correlates with essential plant parameters.
- Traditional chlorophyll measurement methods are destructive, time-consuming, and expensive.
- Existing non-destructive optical readers are effective but costly.
Purpose of the Study:
- To develop an accurate, rapid, and cost-effective method for measuring plant chlorophyll concentration.
- To leverage wearable technology (Google Glass) for plant health assessment.
- To provide a user-friendly platform for environmental and agricultural monitoring.
Main Methods:
- Utilized Google Glass with a custom software application for image capture under red and white LED illumination.
- Developed a portable multi-spectral illuminator and leaf holder.
- Employed remote server processing of images for chlorophyll quantification.
- Generated calibration curves by mapping image intensity to gold-standard colorimetric measurements.
Main Results:
- Accurate chlorophyll concentration measurement achieved using Google Glass and a custom application.
- The system demonstrated rapid results (under 10 seconds) for chlorophyll quantification.
- Successfully estimated chlorophyll in fifteen plant species after calibration with five species.
- The platform proved effective under both indoor and outdoor lighting conditions.
Conclusions:
- The Google Glass-based platform offers an accurate and rapid solution for chlorophyll measurement.
- This technology is highly valuable for diverse applications in environmental and agricultural monitoring.
- It can serve as an early indicator for water, soil, and air quality degradation and climate change effects.
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