Algorithm Experimental Evaluation for an Occluded Liver with/without Shadow-Less Lamps and Invisible Light Filter in a Surgical Room
Algorithm Experimental Evaluation for an Occluded Liver with/without Shadow-Less Lamps and Invisible Light Filter in a Surgical Room
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DOI：
10.1007/978-3-319-58637-3_41
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发表时间：
2017-07
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影响因子：
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通讯作者：
H. Noborio;Kaoru Watanabe;Masahiro Yagi;Shunsuke Ohira;Katsunori Tachibana
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作者：
H. Noborio;Kaoru Watanabe;Masahiro Yagi;Shunsuke Ohira;Katsunori Tachibana
在本文中，我们研究了我们提出的运动转录算法，该算法有助于从真实肝脏开发虚拟肝脏模型；利用stl -多面体在实验手术室中设计了虚拟肝脏。如果我们在房间中不使用任何无影灯，算法将正确地将真实肝脏的平移/旋转运动复制到虚拟肝脏。然而，如果我们在手术中使用一个或两个无影灯，复制质量会显著下降，因此，我们的手术导航有时会受到阻碍。为了克服这个问题，我们尝试将无影灯与遮光滤光片重叠。使用阻光滤光片的目的是为了消除我们的相机系统（Microsoft Kinect v2）中不合适的无影光波长。它配备了三种类型的摄像头：RGB摄像头、红外摄像头和红外激光投影仪。微软Kinect v2可以探测前方物体反射的红外线，估计所有像素内的所有深度距离，并跟踪多种形状的3D物体。因此，使用两个光阻挡过滤器之一，摄像头微软Kinect v2捕获所有深度的所有像素稳定的3D肝脏模型，因此，我们的运动转录算法在实验过程中发挥积极作用。
In this paper, we investigate our proposed motion transcription algorithm that helps develop a virtual liver model from a real liver; the virtual liver is designed using the STL-polyhedron in an experimental surgical room. If we do not use any shadow-less lamps in the room, the algorithm correctly copies the translational/rotational motions from the real liver to the virtual liver. However, if we use one or two shadow-less lamps during the surgery, the copy quality decreases significantly, and consequently, our surgical navigation is sometime dammed. To overcome this problem, we attempted to overlap the shadow-less lamps with light-blocking filters. The purpose of using the light-blocking filter is to eliminate the unsuitable wavelength of shadow-less light for our camera system, the Microsoft Kinect v2. It is equipped with three types of cameras: an RGB camera, an infrared camera, and an infrared laser projector. The Microsoft Kinect v2 detects the infrared rays reflected from the object in front of it, estimates all the depth distances within all the pixels, and tracks 3D objects with several shapes. As a result, using one of the two light blocking filters, the camera Microsoft Kinect v2 captures all depths at all pixels stably on a 3D liver model, and consequently, our motion transcription algorithm plays an active role in the experimental procedure.