A deep learning approach for the quantification of lower tear meniscus height
2021
Abstract The quantification of the tear meniscus height can be helpful in the diagnosis of Dry Eyes Disease. This paper presents a method for automatic quantitation of lower tear meniscus height (TMH) with fully convolutional neural networks (FCNN) and investigate its performance and efficacy compared to manual measurements. A total of 485 images from 217 subjects were acquired with a mainstream corneal topographer and then divided these images into the development and testing set respectively. The development set was used to train the FCNN models, while the testing set to evaluate the performance of the models. TMH of each image was assessed by the proposed method based on the corresponding segmentation mask of tear meniscus and compared against the manual results. The tear meniscus of each image in the testing set was segmented by the FCNN. Five-fold cross validation revealed an overall average intersection of Union (IoU) of 82.5 %, a F1-score of 90.1 % for tear meniscus segmentation. The algorithm results of TMH had a higher correlation (r = 0.965, p
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