SEINE: Structure Encoding and Interaction Network for Nuclei Instance Segmentation

• URL: http://arxiv.org/abs/2401.09773v2
• Date: Fri, 9 Feb 2024 03:14:10 GMT
• Title: SEINE: Structure Encoding and Interaction Network for Nuclei Instance Segmentation
• Authors: Ye Zhang, Linghan Cai, Ziyue Wang, Yongbing Zhang
• Abstract summary: Similar visual presentation of intranuclear and extranuclear regions of chromophobe nuclei often causes under-segmentation. Current methods lack the exploration of nuclei structure, resulting in fragmented instance predictions. This paper proposes a structure encoding and interaction network, SEINE, which develops the structure modeling scheme of nuclei.
• Score: 15.769396833096149
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Nuclei instance segmentation in histopathological images is of great importance for biological analysis and cancer diagnosis but remains challenging for two reasons. (1) Similar visual presentation of intranuclear and extranuclear regions of chromophobe nuclei often causes under-segmentation, and (2) current methods lack the exploration of nuclei structure, resulting in fragmented instance predictions. To address these problems, this paper proposes a structure encoding and interaction network, termed SEINE, which develops the structure modeling scheme of nuclei and exploits the structure similarity between nuclei to improve the integrality of each segmented instance. Concretely, SEINE introduces a contour-based structure encoding (SE) that considers the correlation between nuclei structure and semantics, realizing a reasonable representation of the nuclei structure. Based on the encoding, we propose a structure-guided attention (SGA) module that takes the clear nuclei as prototypes to enhance the structure learning for the fuzzy nuclei. To strengthen the structural learning ability, a semantic feature fusion (SFF) is presented to boost the semantic consistency of semantic and structure branches. Furthermore, a position enhancement (PE) method is applied to suppress incorrect nuclei boundary predictions. Extensive experiments demonstrate the superiority of our approaches, and SEINE achieves state-of-the-art (SOTA) performance on four datasets. The code is available at https://github.com/zhangye-zoe/SEINE.

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