FUSegNet: A Deep Convolutional Neural Network for Foot Ulcer Segmentation

• URL: http://arxiv.org/abs/2305.02961v2
• Date: Sat, 27 Jan 2024 03:16:38 GMT
• Title: FUSegNet: A Deep Convolutional Neural Network for Foot Ulcer Segmentation
• Authors: Mrinal Kanti Dhar, Taiyu Zhang, Yash Patel, Sandeep Gopalakrishnan, and Zeyun Yu
• Abstract summary: FUSegNet is a new model for foot ulcer segmentation in diabetes patients. It uses the pre-trained EfficientNet-b7 as a backbone to address the issue of limited training samples.
• Score: 3.880691536038042
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: This paper presents FUSegNet, a new model for foot ulcer segmentation in diabetes patients, which uses the pre-trained EfficientNet-b7 as a backbone to address the issue of limited training samples. A modified spatial and channel squeeze-and-excitation (scSE) module called parallel scSE or P-scSE is proposed that combines additive and max-out scSE. A new arrangement is introduced for the module by fusing it in the middle of each decoder stage. As the top decoder stage carries a limited number of feature maps, max-out scSE is bypassed there to form a shorted P-scSE. A set of augmentations, comprising geometric, morphological, and intensity-based augmentations, is applied before feeding the data into the network. The proposed model is first evaluated on a publicly available chronic wound dataset where it achieves a data-based dice score of 92.70%, which is the highest score among the reported approaches. The model outperforms other scSE-based UNet models in terms of Pratt's figure of merits (PFOM) scores in most categories, which evaluates the accuracy of edge localization. The model is then tested in the MICCAI 2021 FUSeg challenge, where a variation of FUSegNet called x-FUSegNet is submitted. The x-FUSegNet model, which takes the average of outputs obtained by FUSegNet using 5-fold cross-validation, achieves a dice score of 89.23%, placing it at the top of the FUSeg Challenge leaderboard. The source code for the model is available on https://github.com/mrinal054/FUSegNet.

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