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Decoder-Only Image Registration

delete2025-08-01
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OA
AI
X
Xi Jia
W
Wenqi Lu
X
Xinxing Cheng
J
Jinming Duan
DOI:10.1109/TMI.2025.3562056delete
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摘要

摘要

En 中文
在无监督医学图像配准中,编码器-解码器架构被广泛用于从配对图像中预测密集、全分辨率的位移场。尽管其应用广泛,但我们质疑让编码器和解码器都具备可学习性的必要性。为解决这一问题,我们提出LessNet,一种仅包含可学习解码器的简化网络架构,同时完全省略了可学习的编码器。相反,LessNet用简单的手工设计特征替代了编码器,从而无需优化编码器参数。这形成了一种紧凑、高效且仅含解码器的3D医学图像配准架构。我们在五个配准任务上评估了我们的仅含解码器的LessNet:1)使用OASIS-1数据集进行跨受试者脑部配准,2)使用IXI数据集进行图谱引导的脑部配准,3)使用ACDC数据集进行心脏ES-ED配准,4)使用CHAOS数据集进行跨受试者腹部MR配准,5)使用来自13个公共数据集的图像进行多研究、多中心的脑部配准。我们的结果表明,LessNet能够有效且高效地学习密集位移场和可微分变形场。此外,我们的仅含解码器的LessNet在达到与VoxelMorph和TransMorph等基准方法相当配准性能的同时,所需的计算资源显著更少。我们的代码和预训练模型可在https://github.com/xi-jia/LessNet获取。
Keyword:
Decoder-only
image registration
U-Net
efficient
diffeomorphic

期刊

IEEE Transactions on Medical Imaging 封面图
IEEE Transactions on Medical Imaging
IF:
9.8
论文数:
6.3K
被引数:
3.7W

机构

U
University of Birmingham
学者数:
4.1W
论文数: 3.8W
被引数: 5.0W
M
Manchester Metropolitan University
学者数:
4.4K
论文数: 5.0K
被引数: 6
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