Diagonal Hierarchical Consistency Learning for Semi-supervised Medical Image Segmentation

Heejoon Koo

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arXiv · 2311.06031

Diagonal Hierarchical Consistency Learning for Semi-supervised Medical Image Segmentation

Heejoon Koo

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Abstract

Medical image segmentation, which is essential for many clinical applications, has achieved almost human-level performance via data-driven deep learning technologies. Nevertheless, its performance is predicated upon the costly process of manually annotating a vast amount of medical images. To this end, we propose a novel framework for robust semi-supervised medical image segmentation using diagonal hierarchical consistency learning (DiHC-Net). First, it is composed of multiple sub-models with identical multi-scale architecture but with distinct sub-layers, such as up-sampling and normalisation layers. Second, with mutual consistency, a novel consistency regularisation is enforced between one model's intermediate and final prediction and soft pseudo labels from other models in a diagonal hierarchical fashion. A series of experiments verifies the efficacy of our simple framework, outperforming all previous approaches on public benchmark dataset covering organ and tumour.

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Heejoon Koo. 2023-11-10. Diagonal Hierarchical Consistency Learning for Semi-supervised Medical Image Segmentation. https://arxiv.org/abs/2311.06031

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