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Classification of color-coded Scheimpflug camera corneal tomography images using deep learning.

Research Authors
HazemAbdelmotaal, Magdi M.Mostafa, Ali N. R.Mostafa, Abdelsalam A.Mohamed, and Khaled Abdelazeem
Research Department
Research Journal
Translational vision science and technology
Research Publisher
Association for Research in Vision and Ophthalmology (ARVO)
Research Rank
1
Research Vol
9(13)
Research Website
https://tvst.arvojournals.org/article.aspx?articleid=2772085
Research Year
2020
Research_Pages
30 - 41
Research Abstract

Purpose: To assess the use of deep learning for high-performance image classification of color-coded corneal maps obtained using a Scheimpflug camera. Methods:We used a domain-specific convolutional neural network (CNN) to implement deep learning.CNNperformancewas assessed using standard metrics and detailed error analyses, including network activation maps. Results: The CNN classified fourmap-selectable display images with average accuracies of 0.983 and 0.958 for the training and test sets, respectively. Network activation maps revealed that the model was heavily influenced by clinically relevant spatial regions. Conclusions: Deep learning using color-coded Scheimpflug images achieved high diagnostic performance with regard to discriminating keratoconus, subclinical keratoconus, and normal corneal images at levels that may be useful in clinical practice when screening refractive surgery candidates. Translational Relevance: Deep learning can assist human graders in keratoconus detection in Scheimpflug camera color-coded corneal tomography maps.