Abstract
Color analysis has been essential for the interpretation of optical readouts, e.g. colorimetry, fluorescence, spectroscopy, and scanometry. However, existing colorimetric readers can hardly eliminate the color interference of colored solutions, e.g., interpreting pH test strips to assess the pH value of red wine. This paper introduces a smartphone modulated colorimetric reader that is compatible with most smartphone models and novel color subtraction algorithms that eliminate color interferences due to colored solutions. Experiments were conducted to validate the effectiveness of the developed reader and algorithms on evaluating pH test strips produced from transparent and colored solutions using multiple smartphone models. Applicability of the developed reader was demonstrated through its interpretation of pH test strips measuring pH values of colored and non-transparent food samples including red wine and milk.
Original language | English |
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Title of host publication | IEEE Sensors 2019 Conference: Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Number of pages | 4 |
ISBN (Electronic) | 978-1-7281-1634-1 |
DOIs | |
Publication status | Published - 13 Jan 2020 |
Event | 18th IEEE Sensors, SENSORS 2019 - Montreal, Canada Duration: 27 Oct 2019 → 30 Oct 2019 |
Publication series
Name | Proceedings of IEEE Sensors |
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Volume | 2019-October |
ISSN (Print) | 1930-0395 |
ISSN (Electronic) | 2168-9229 |
Conference
Conference | 18th IEEE Sensors, SENSORS 2019 |
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Country/Territory | Canada |
City | Montreal |
Period | 27/10/2019 → 30/10/2019 |
Keywords
- smartphone
- colorimetry
- color subtraction
- versatile
- low-cost
- portable
ASJC Scopus subject areas
- Electrical and Electronic Engineering
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