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Automated Diatom Classification (Part B): A Deep Learning Approach

AuthorsPedraza, Aníbal; Bueno, Gloria; Déniz, Óscar; Cristóbal, Gabriel ; Blanco, Saúl; Borrego-Ramos, María
Issue Date2-May-2017
PublisherMultidisciplinary Digital Publishing Institute
CitationApplied Sciences 7 (5): 460 (2017)
AbstractDiatoms, a kind of algae microorganisms with several species, are quite useful for water quality determination, one of the hottest topics in applied biology nowadays. At the same time, deep learning and convolutional neural networks (CNN) are becoming an extensively used technique for image classification in a variety of problems. This paper approaches diatom classification with this technique, in order to demonstrate whether it is suitable for solving the classification problem. An extensive dataset was specifically collected (80 types, 100 samples/type) for this study. The dataset covers different illumination conditions and it was computationally augmented to more than 160,000 samples. After that, CNNs were applied over datasets pre-processed with different image processing techniques. An overall accuracy of 99% is obtained for the 80-class problem and different kinds of images (brightfield, normalized). Results were compared to previous presented classification techniques with different number of samples. As far as the authors know, this is the first time that CNNs are applied to diatom classification.
Publisher version (URL)https://doi.org/10.3390/app7050460
Identifiersdoi: 10.3390/app7050460
Appears in Collections:(CFMAC-IO) Artículos
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