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Deformable image registration using convolutional neural networks

机译:使用卷积神经网络可变形图像配准

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Deformable image registration can be time-consuming and often needs extensive parameterization to perform well on a specific application. We present a step towards a registration framework based on a three-dimensional convolutional neural network. The network directly learns transformations between pairs of three-dimensional images. The outputs of the network are three maps for the x, y, and z components of a thin plate spline transformation grid. The network is trained on synthetic random transformations, which are applied to a small set of representative images for the desired application. Training therefore does not require manually annotated ground truth deformation information. The methodology is demonstrated on public data sets of inspiration-expiration lung CT image pairs, which come with annotated corresponding landmarks for evaluation of the registration accuracy. Advantages of this methodology are its fast registration times and its minimal parameterization.
机译:可变形的图像配准可以耗时,并且通常需要广泛的参数化在特定应用程序上执行良好。我们展示了基于三维卷积神经网络的登记框架的一步。网络直接学习三维图像对之间的转换。网络的输出是薄板样条转换网格的X,Y和Z组件的三个地图。该网络接受了合成随机变换的培训,其应用于所需应用的一小组代表性图像。因此,培训不需要手动注释的地面真相变形信息。在启动到期肺CT图像对的公共数据组上证明了方法,该对应的相应地标具有用于评估登记精度的注释相应的地标。该方法的优点是其快速注册时间及其最小参数化。

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