arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2403.03326eess.IVcs.CV

AnatoMix:面向多器官分割的解剖感知数据增强方法

AnatoMix: Anatomy-aware Data Augmentation for Multi-organ Segmentation

Friedrich-Alexander-Universität(弗里德里希-亚历山大大学)

Chang Liu, Fuxin Fan, Annette Schwarz, Andreas Maier

AI总结:

针对医学图像多器官分割任务的数据泛化需求,该研究提出解剖感知数据增强策略AnatoMix,通过对象级操作生成符合解剖结构的新样本扩充数据集,在公开CT数据集上的平均dice系数较基线提升1.3。

摘要:

医学图像中的多器官分割是一项被广泛研究的任务,能够大幅减轻临床医生日常工作中的手动标注负担。利用深度学习(DL)实现器官分割流程自动化是极具前景的解决方案,当前最先进的分割模型已取得不错的精度。本研究提出了一种提升多器官分割数据集泛化性的新型数据增强策略,命名为AnatoMix。通过对象级匹配与操作,该方法能够生成具备正确解剖结构(即器官分割掩码)的新图像,可指数级扩充分割数据集规模。我们在公开CT数据集上开展了初步实验,探究该方法对分割性能的影响,结果显示本增强方法的平均dice系数达76.1,而基线方法为74.8。

英文摘要:

Multi-organ segmentation in medical images is a widely researched task and can save much manual efforts of clinicians in daily routines. Automating the organ segmentation process using deep learning (DL) is a promising solution and state-of-the-art segmentation models are achieving promising accuracy. In this work, We proposed a novel data augmentation strategy for increasing the generalizibility of multi-organ segmentation datasets, namely AnatoMix. By object-level matching and manipulation, our method is able to generate new images with correct anatomy, i.e. organ segmentation mask, exponentially increasing the size of the segmentation dataset. Initial experiments have been done to investigate the segmentation performance influenced by our method on a public CT dataset. Our augmentation method can lead to mean dice of 76.1, compared with 74.8 of the baseline method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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