Surgical navigation by auto stereo scopic image overlay of integral videography
Surgical navigation by auto stereo scopic image overlay of integral videography
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DOI：
10.1109/titb.2004.826734
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发表时间：
2004-06-01
影响因子：
--
通讯作者：
Dohi, T
中科院分区：
文献类型：
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作者：
Liao, H;Hata, N;Dohi, T
本文描述了一种自动立体图像叠加技术，该技术被集成到手术导航系统中，通过半镀银的镜子将真实的三维(3-D)图像叠加到患者身上。这些图像是通过采用综合摄像(IV)的修改版本来创建的，该综合摄像是综合摄影的动画扩展。IV使用微凸透镜阵列和平板显示器记录和再现3D图像；它可以显示几何精度的3D自动立体图像，并复制运动视差，而不需要特殊设备。半透明显示设备的使用使它看起来。3-D图像在患者体内。这是首次将具有图像覆盖系统的自动立体显示应用于手术导航。实验证明，快速IV渲染技术和患者-图像配准方法的平均配准精度为1.13 mm。使用幻影琼脂中的靶标进行的实验表明，该系统可以将针引导到靶标上，平均误差为2.6 mm。静脉显示质量的提高将使该系统变得实用，它的使用将提高手术精度并降低侵袭性。
This paper describes an autostereoscopic image overlay technique that is integrated into a surgical navigation system to superimpose a real three-dimensional (3-D) image onto the patient via a half-silvered mirror. The images are created by employing a modified version of integral videography (IV), which is an animated extension of integral photography. IV records and reproduces 3-D images using a microconvex lens array and flat display; it can display geometrically accurate 3-D autostereoscopic images and reproduce motion parallax without the need for special devices. The use of semitransparent display devices makes it appear that. the 3-D image is inside the patient's body. This is the first report of applying an autostereoscopic display with an image overlay system in surgical navigation. Experiments demonstrated that the fast IV rendering technique and patient-image registration method produce an average registration accuracy of 1.13 mm. Experiments using a target in phantom agar showed that the system can guide a needle toward a target with an average error of 2.6 mm. Improvement in the quality of the IV display will make this system practical and its use will increase surgical accuracy and reduce invasiveness.