UG-Net: Corneal Endothelial Cell Segmentation Based on Uncertainty Estimation and Soft Spatial Attention

Yinglin Zhang, Wei Wang, Biao Wang, Zicao Cai, Dave Towey, Ruibin Bai, Risa Higashita, Jiang Liu

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

Abstract

Corneal endothelial cell segmentation of the microscope image is critical for clinical parameters quantification. However, the low-contrast regions are ambiguous and hard to segment. The uncertainty has been proved to be effective for detecting the ambiguous regions. Besides, spatial attention can guide the model to focus on the region of interest during the training process. This paper proposes an Uncertainty Guided Network (UG-Net) for corneal endothelial cell segmentation based on uncertainty estimation and spatial attention. We first use Bayesian approximation to obtain aleatoric and epistemic uncertainty maps. Then, two uncertainty maps are utilized to guide the model to focus on the low-contrast regions with uncertainty-based soft spatial attention. Experimental results show that the proposed method performs better than other state-of-the-art methods.

Original languageEnglish
Title of host publication2023 IEEE International Symposium on Biomedical Imaging, ISBI 2023
PublisherIEEE Computer Society
ISBN (Electronic)9781665473583
DOIs
Publication statusPublished - 2023
Event20th IEEE International Symposium on Biomedical Imaging, ISBI 2023 - Cartagena, Colombia
Duration: 18 Apr 202321 Apr 2023

Publication series

NameProceedings - International Symposium on Biomedical Imaging
Volume2023-April
ISSN (Print)1945-7928
ISSN (Electronic)1945-8452

Conference

Conference20th IEEE International Symposium on Biomedical Imaging, ISBI 2023
Country/TerritoryColombia
CityCartagena
Period18/04/2321/04/23

Keywords

  • Corneal Endothelial Cell
  • Deep Learning
  • Segmentation
  • Uncertainty Estimation

ASJC Scopus subject areas

  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging

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