Hierarchical Deep Network with Uncertainty-aware Semi-supervised Learning for Vessel Segmentation

• URL: http://arxiv.org/abs/2105.14732v1
• Date: Mon, 31 May 2021 06:55:43 GMT
• Title: Hierarchical Deep Network with Uncertainty-aware Semi-supervised Learning for Vessel Segmentation
• Authors: Chenxin Li, Wenao Ma, Liyan Sun, Xinghao Ding, Yue Huang, Guisheng Wang, Yizhou Yu
• Abstract summary: We propose a hierarchical deep network where an attention mechanism localizes the low-contrast capillary regions guided by the whole vessels. The proposed method achieves the state-of-the-art performance in the benchmarks of both retinal artery/vein segmentation in fundus images and liver portal/hepatic vessel segmentation in CT images.
• Score: 58.45470500617549
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The analysis of organ vessels is essential for computer-aided diagnosis and surgical planning. But it is not a easy task since the fine-detailed connected regions of organ vessel bring a lot of ambiguity in vessel segmentation and sub-type recognition, especially for the low-contrast capillary regions. Furthermore, recent two-staged approaches would accumulate and even amplify these inaccuracies from the first-stage whole vessel segmentation into the second-stage sub-type vessel pixel-wise classification. Moreover, the scarcity of manual annotation in organ vessels poses another challenge. In this paper, to address the above issues, we propose a hierarchical deep network where an attention mechanism localizes the low-contrast capillary regions guided by the whole vessels, and enhance the spatial activation in those areas for the sub-type vessels. In addition, we propose an uncertainty-aware semi-supervised training framework to alleviate the annotation-hungry limitation of deep models. The proposed method achieves the state-of-the-art performance in the benchmarks of both retinal artery/vein segmentation in fundus images and liver portal/hepatic vessel segmentation in CT images.

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