Video see-through augmented reality for oral and maxillofacial surgery
Video see-through augmented reality for oral and maxillofacial surgery
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DOI：
10.1002/rcs.1754
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发表时间：
2017-06-01
影响因子：
2.5
通讯作者：
Sakuma, Ichiro
中科院分区：
文献类型：
--
作者：
Wang, Junchen;Suenaga, Hideyuki;Sakuma, Ichiro
背景：由于图像配准的局限性，口腔颌面外科一直没有从图像引导技术中受益。方法将形状匹配方法与二维跟踪框架相结合，提出了一种实时无标记图像配准方法。图像配准是通过将患者的牙齿模型与术中视频进行匹配来获得其姿态。生成的姿态用于将来自相同CT空间的相关模型叠加在相机视频上以实现增强现实。结果对该系统进行了下颌骨幻影、志愿者和临床数据的评估。实验结果表明，目标叠加误差约为1mm，配准更新帧率为3-5帧/秒。结论本工作的意义在于临床设置简单，与当前医疗程序无缝集成，具有满意的响应时间和覆盖精度。版权所有：John Wiley & Sons， Ltd。
BackgroundOral and maxillofacial surgery has not been benefitting from image guidance techniques owing to the limitations in image registration.MethodsA real-time markerless image registration method is proposed by integrating a shape matching method into a 2D tracking framework. The image registration is performed by matching the patient's teeth model with intraoperative video to obtain its pose. The resulting pose is used to overlay relevant models from the same CT space on the camera video for augmented reality.ResultsThe proposed system was evaluated on mandible/maxilla phantoms, a volunteer and clinical data. Experimental results show that the target overlay error is about 1mm, and the frame rate of registration update yields 3-5 frames per second with a 4K camera.ConclusionsThe significance of this work lies in its simplicity in clinical setting and the seamless integration into the current medical procedure with satisfactory response time and overlay accuracy. Copyright (c) 2016 John Wiley & Sons, Ltd.