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arXiv 1907.05062cs.CVeess.IV

FIRE:使用深度网络的无监督双向模态间配准

FIRE: Unsupervised bi-directional inter-modality registration using deep networks

University of Edinburgh(爱丁堡大学);Sun Yat-Sen University(中山大学)

Chengjia Wang, Giorgos Papanastasiou, Agisilaos Chartsias, Grzegorz Jacenkow, Sotirios A. Tsaftaris, Heye Zhang

AI总结:

本文提出无监督双向模态间配准深度网络FIRE,通过多任务架构与逆向一致性损失同时学习仿射与非刚性变换,在脑MR与心脏Cine-MR数据上取得优异性能。

摘要:

模态间图像配准是常规临床路径中许多应用的关键预处理步骤。本文提出了一种无监督深度模态间配准网络,能够同时学习最佳仿射变换与非刚性变换。逆向一致性是近期基于深度学习的模态间配准算法中常被忽略的重要属性。我们通过提出的多任务架构和新型综合变换网络来解决此问题。具体而言,该模型学习模态无关的潜在表示以执行循环一致的跨模态合成,并使用逆向一致性损失来学习一对变换,以将合成图像与目标对齐。由于其结构形状,我们将此框架命名为FIRE。在多序列脑MR数据和模态内4D心脏Cine-MR数据上的实验表明,我们的方法与流行的基线方法相比表现出相当或更好的性能。

英文摘要:

Inter-modality image registration is an critical preprocessing step for many applications within the routine clinical pathway. This paper presents an unsupervised deep inter-modality registration network that can learn the optimal affine and non-rigid transformations simultaneously. Inverse-consistency is an important property commonly ignored in recent deep learning based inter-modality registration algorithms. We address this issue through the proposed multi-task architecture and the new comprehensive transformation network. Specifically, the proposed model learns a modality-independent latent representation to perform cycle-consistent cross-modality synthesis, and use an inverse-consistent loss to learn a pair of transformations to align the synthesized image with the target. We name this proposed framework as FIRE due to the shape of its structure. Our method shows comparable and better performances with the popular baseline method in experiments on multi-sequence brain MR data and intra-modality 4D cardiac Cine-MR data.

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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