Deformable Shape-From-Motion in Laparoscopy using a Rigid Sliding Window

Deformable Shape-From-Motion in Laparoscopy using a Rigid Sliding Window
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使用刚性滑动窗在腹腔镜检查中实现运动变形

DOI:
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发表时间:
2011
期刊:
Annual Conference on Medical Image Understanding and Analysis
影响因子:
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通讯作者:
A. Bartoli
A. Bartoli
中科院分区:
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文献类型:
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作者:
T. Collins;B. Compte;A. Bartoli

文献摘要

被引文献

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我们提出了一种使用腹腔镜单眼视频数据的可变形3D表面重建方法,该方法基于将非刚性重建问题分解为一系列时间局部化的刚性重建。我们的主要贡献,刚性滑动窗口算法提供了一种手段来实现这一点,其中刚性Shapefrom运动是在一个滑动窗口,适应根据在场景中检测到的变形量。我们的方法特别适用于腹腔镜检查,其中,通过调整窗口,它可以利用由例如呼吸引起的低频变形。我们的算法证明了合成和体内图像序列。
We present an approach for deformable 3D surface reconstruction using laparoscopic monocular video data that is based on breaking down the nonrigid reconstruction problem into a sequence of temporally-localised rigid reconstructions. Our main contribution, the Rigid Sliding Window algorithm provides a means to achieve this whereby Rigid Shapefrom-Motion is performed over a sliding window that adapts according to the amount of deformation detected in the scene. Our method is particularly applicable for laparoscopy, where, by adapting the window, it can exploit low-frequency deformations caused by for example breathing. Our algorithm is demonstrated on both synthetic and in-vivo image sequences.