Brain mri image nuclei segmentation model training and segmentation method, device and medium

By generating initial pseudo-labels through brain map registration and combining them with closed-loop iterative training of a deep learning model, the problems of dependence on manual labeling and insufficient registration accuracy in existing technologies are solved. This achieves high-precision, low-cost brain nucleus segmentation and improves the model's generalization ability and stability.

CN122415585APending Publication Date: 2026-07-17GUANGZHOU AIMUYI TECH CO LTD
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Patent Information

Application Number
CN202610742933.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies rely heavily on manual annotation in brain nucleus segmentation, resulting in limited registration accuracy and a lack of closed-loop optimization mechanisms, making it difficult to achieve high-precision and stable segmentation.

Method used

By image registration of brain templates with nucleus structure annotations to brain MRI images, initial pseudo-annotations are generated, a training sample set is constructed, and a deep learning segmentation model is used for training. A closed-loop iterative mechanism of prediction-update-retraining is established to gradually improve the quality of pseudo-annotations and the segmentation accuracy of the model.

Benefits of technology

It significantly reduces the reliance on manually labeled data, achieves high-precision and stable brain nucleus segmentation, improves the model's generalization ability and robustness, and can effectively utilize unlabeled data, reducing data preparation costs and time consumption.

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Abstract

本发明公开了一种脑部MRI影像核团分割模型训练和分割方法、设备和介质,属于图像处理领域。其中训练方法包括:获取多个脑部MRI影像;选取带有核团标注的脑部模板;将模板与各影像配准,生成初始伪标注;将影像与伪标注配对构建训练样本集;构建深度学习分割模型并训练得到初始分割模型;以当前模型对影像进行预测,基于预测结果与当前伪标注进行伪标注更新;利用更新后的伪标注重新训练或微调模型;迭代执行上述预测、更新、训练步骤直至满足预设条件,得到最终分割模型。本发明通过配准自动生成伪标注摆脱人工标注依赖,利用闭环迭代持续提升伪标注质量与模型精度,实现了低成本、高精度的脑部核团分割模型训练。
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Citation Information

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