Automated Onychomycosis Detection Using Deep Neural Networks

06/30/2021
by   Abdurrahim Yilmaz, et al.
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Clinical dermatology, still relies heavily on manual introspection of fungi within a Potassium Hydroxide (KOH) solution using a brightfield microscope. However, this method takes a long time, is based on the experience of the clinician, and has a low accuracy. With the increase of neural network applications in the field of clinical microscopy it is now possible to automate such manual processes increasing both efficiency and accuracy. This study presents a deep neural network structure that enables the rapid solutions for these problems and can perform automatic fungi detection in grayscale images without colorants. Microscopic images of 81 fungi and 235 ceratine were collected. Then, smaller patches were extracted containing 2062 fungi and 2142 ceratine. In order to detect fungus and ceratine, two models were created one of which was a custom neural network and the other was based on the VGG16 architecture. The developed custom model had 99.84 the curve (AUC) value of 1.00, while the VGG16 model had 98.89 AUC value of 0.99. However, average accuracy and AUC value of clinicians is 72.8 an automated system that can detect fungi within microscopic images.

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