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Volume 13 Issue 4
Apr.  2026

IEEE/CAA Journal of Automatica Sinica

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R. Cheng, X. Qiu, M. Li, Y. Zhang, F. Yu, and C. Li, “Robust brain tumor segmentation with incomplete MRI modalities using Hölder divergence and mutual information-enhanced knowledge transfer,” IEEE/CAA J. Autom. Sinica, vol. 13, no. 4, pp. 939–954, Apr. 2026. doi: 10.1109/JAS.2025.125609
Citation: R. Cheng, X. Qiu, M. Li, Y. Zhang, F. Yu, and C. Li, “Robust brain tumor segmentation with incomplete MRI modalities using Hölder divergence and mutual information-enhanced knowledge transfer,” IEEE/CAA J. Autom. Sinica, vol. 13, no. 4, pp. 939–954, Apr. 2026. doi: 10.1109/JAS.2025.125609

Robust Brain Tumor Segmentation With Incomplete MRI Modalities Using Hölder Divergence and Mutual Information-Enhanced Knowledge Transfer

doi: 10.1109/JAS.2025.125609
Funds:  This work was supported by the National Key Research and Development Program of China (2025YFE0113400, 2022YFC3310300), Guangdong Basic and Applied Basic Research Foundation (2024A1515011774), the National Natural Science Foundation of China (12171036), Shenzhen Sci-Tech Fund (RCJC20231211090030059), and Beijing Natural Science Foundation (Z210001)
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  • Multimodal MRI (magnetic resonance imaging) provides critical complementary information for accurate brain tumor segmentation. However, conventional methods struggle when certain modalities are missing due to issues like image quality, protocol inconsistencies, patient allergies, or financial constraints. To address this, we propose a robust single-modality parallel processing framework that achieves high segmentation accuracy even with incomplete modalities. Leveraging Hölder divergence and mutual information, our model maintains modality-specific features while dynamically adjusting network parameters based on available inputs. By using these divergence and information-based loss functions, the framework effectively quantifies discrepancies between predictions and ground-truth labels, resulting in consistently accurate segmentation. Extensive evaluations on the BraTS 2018 and BraTS 2020 datasets demonstrate superior performance over existing methods in handling missing modalities, with ablation studies validating each component’s contribution to the framework.

     

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  • Runze Cheng and Xihang Qiu and Ming Li contributed equally to this work.
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