An accurate 3D augmented reality navigation system with enhanced autostereoscopic display for oral and maxillofacial surgery

被引:5
作者
Han, Boxuan [1 ]
Li, Ruiyang [1 ]
Huang, Tianqi [1 ]
Ma, Longfei [1 ]
Liang, Hanying [1 ]
Zhang, Xinran [1 ]
Liao, Hongen [1 ]
机构
[1] Tsinghua Univ, Dept Biomed Engn, Sch Med, Beijing 100084, Peoples R China
基金
中国国家自然科学基金;
关键词
augmented reality; autostereoscopic display; eye tracking; optical see-through; surgical navigation; SURGICAL NAVIGATION; IMAGE OVERLAY;
D O I
10.1002/rcs.2404
中图分类号
R61 [外科手术学];
学科分类号
摘要
Background Oral and maxillofacial surgery demands high precision navigation to achieve optimal surgical outcomes. Augmented reality (AR) has been a promising solution for intuitive and accurate guidance, whereas existing systems have room for improvement. Methods We propose a high quality and accurate in situ AR navigation system. Enhanced image quality is achieved by deploying eye tracking in lenticular-based autostereoscopic display. Viewpoint tracking and optical tracking are integrated to assure accurate in situ images. Results The proposed system can provide in situ AR images in real-time, with a viewing angle of 59.5 degrees x 49.1 degrees, 3D image resolution of 0.35 x 0.21 mm, and image accuracy of 0.99 +/- 0.70 mm. A maxillary drilling experiment obtains average position error of 1.12 +/- 0.30 mm and localization time of 8.7 +/- 3.9 s, significantly better than conventional 2D navigation system. Conclusions The proposed system can display high-quality AR images and therefore reduce positioning error and operating time.
引用
收藏
页数:12
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