Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14365/1438
Title: Quantifying Colorimetric Tests Using a Smartphone App Based on Machine Learning Classifiers
Authors: Solmaz, Mehmet E.
Mutlu, Ali Y.
Alankus, Gazihan
Kilic, Volkan
Bayram, Abdullah
Horzum, Nesrin
Keywords: Smartphone
Colorimetry
Machine learning
Android application
Mobile-Phone
Platform
Glucose
Camera
Publisher: Elsevier Science Sa
Abstract: A smartphone application based on machine learning classifier algorithms was developed for quantifying peroxide content on colorimetric test strips. The strip images were taken from five different Android based smartphones under seven different illumination conditions to train binary and multi-class classifiers and to extract the learning model. A custom app, ChemTrainer, was designed to capture, crop, and process the active region of the strip, and then to communicate with a remote server that contains the learning model through a Cloud hosted service. The application was able to detect the color change in peroxide strips with over 90% success rate for primary colors with inter-phone repeatability under versatile illumination. The utilization of a grey-world color constancy image processing algorithm positively affected the classification accuracy for binary classifiers. The developed app with a Cloud based learning model paves the way for better colorimetric detection for paper-based chemical assays. (C) 2017 Elsevier B.V. All rights reserved.
URI: https://doi.org/10.1016/j.snb.2017.08.220
https://hdl.handle.net/20.500.14365/1438
ISSN: 0925-4005
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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