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首页> 外文会议>Conference on Physiology and Function: Methods, Systems, and Applications Feb 16-18, 2003 San Diego, California, USA >A Method for Generating Unfolded Views of Organ and Its Comparison with Virtual Endoscopy Based on Undisplayed Region Rate
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A Method for Generating Unfolded Views of Organ and Its Comparison with Virtual Endoscopy Based on Undisplayed Region Rate

机译：基于未显示区域速率的器官展开视图生成方法及其与虚拟内窥镜的比较

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摘要

This paper describes a method for generating an unfolded view of organs based on elastic deformation. When we observe the inside of an organ that has a large cavity with a virtual endoscopy system, the viewpoint and the view direction need to be changed many times. Unfolded views can visualize the entire organ wall at a glance and are very useful for diagnosis. The unfolding process requires creating a model that approximates the shape of the target organ. The approximated shape is generated from the outer wall of the organ by extracting the organ wall. The user interactively specifies a cutting line on the approximated shape. The stretching is performed by adding forces and calculating the elastic deformation. The volumetric image where the target organ is unfolded is reconstructed from the original image by using the relation between the approximated and the stretched shapes. We applied the proposed method to six 3-D abdominal CT images. The experimental results showed that the method generates adequate unfolded views of the target organs.
机译：本文介绍了一种基于弹性变形生成器官展开视图的方法。当我们使用虚拟内窥镜系统观察具有大腔体的器官内部时，需要多次更改视点和观察方向。展开的视图可以使整个器官壁一目了然，对诊断非常有用。展开过程需要创建一个近似目标器官形状的模型。通过提取器官壁，从器官的外壁产生近似的形状。用户以交互方式在近似形状上指定切割线。通过施加力并计算弹性变形来执行拉伸。通过使用近似形状和拉伸形状之间的关系，从原始图像重建目标器官展开的体积图像。我们将建议的方法应用于六幅3-D腹部CT图像。实验结果表明，该方法可生成目标器官的充分展开视图。

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