arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2402.09587cs.CV

DeepATLAS:面向生物医学数据的单样本定位

DeepATLAS: One-Shot Localization for Biomedical Data

University of California Irvine(加州大学欧文分校)

Peter D. Chang

AI总结:

本文提出用于高维生物医学数据定位的 DeepATLAS 基础模型,通过自监督学习生成解剖学一致的嵌入实现单样本或少样本定位,在多解剖结构分割任务上达到或超越标准监督学习模型。

摘要:

本文介绍了用于高维生物医学数据定位任务的 DeepATLAS 基础模型。在所提出的自监督目标收敛后,预训练模型将输入映射到解剖学一致的嵌入,从中可以通过单样本或少样本方法识别任意单个点或点集(例如边界框或分割掩码)。作为代表性基准,在包含 51,000 多次未标注 3D 计算机断层扫描检查的全面队列上预训练的 DeepATLAS 模型,在四个不同的外部测试集上的 50 多个解剖结构中展现出极高的单样本分割性能,其表现与标准监督学习模型相当或更优。通过使用半监督或更常规的微调策略添加少量标注数据,可以进一步提高准确性。

英文摘要:

This paper introduces the DeepATLAS foundational model for localization tasks in the domain of high-dimensional biomedical data. Upon convergence of the proposed self-supervised objective, a pretrained model maps an input to an anatomically-consistent embedding from which any point or set of points (e.g., boxes or segmentations) may be identified in a one-shot or few-shot approach. As a representative benchmark, a DeepATLAS model pretrained on a comprehensive cohort of 51,000+ unlabeled 3D computed tomography exams yields high one-shot segmentation performance on over 50 anatomic structures across four different external test sets, either matching or exceeding the performance of a standard supervised learning model. Further improvements in accuracy can be achieved by adding a small amount of labeled data using either a semisupervised or more conventional fine-tuning strategy.

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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