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arXiv 1804.04563cs.CVstat.ML
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基于卷积神经网络的脑图像分割

Towards integrating spatial localization in convolutional neural networks for brain image segmentation

Univ Lyon(里昂大学);INSA‐Lyon(里昂国立应用科学学院);Université Claude Bernard Lyon 1(里昂第一大学);UJM-Saint Etienne(圣艾蒂安大学);CNRS(法国国家科学研究中心);Inserm(法国国家健康与医学研究院);CREATIS UMR 5220(CREATIS联合研究单位5220);U1206(U1206研究单位)

Pierre-Antoine Ganaye, Michaël Sdika, Hugues Benoit-Cattin

摘要:

语义分割是医学成像领域中一个成熟而又快速发展的领域。在本文中,我们专注于脑磁共振图像(MRI)分割成大脑结构使用卷积神经网络(CNN)。CNN通过寻找仅描述补丁内容的有效高维图像特征来实现良好的性能。在这项工作中,我们提出了不同的方法来将空间约束引入网络,以进一步减少预测的不一致性。训练了基于补丁的CNN架构,利用多个尺度来收集上下文信息。通过到地标特征的距离或通过概率图谱的集成在CNN内引入空间约束。我们的实验表明,使用空间信息有助于减少分割不一致。

英文摘要:

Semantic segmentation is an established while rapidly evolving field in medical imaging. In this paper we focus on the segmentation of brain Magnetic Resonance Images (MRI) into cerebral structures using convolutional neural networks (CNN). CNNs achieve good performance by finding effective high dimensional image features describing the patch content only. In this work, we propose different ways to introduce spatial constraints into the network to further reduce prediction inconsistencies. A patch based CNN architecture was trained, making use of multiple scales to gather contextual information. Spatial constraints were introduced within the CNN through a distance to landmarks feature or through the integration of a probability atlas. We demonstrate experimentally that using spatial information helps to reduce segmentation inconsistencies.

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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