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42.2: Invited Paper: Autostereoscopic 3D Display for Telesurgery

Telesurgery is an emerging technology which not only mitigates the shortage of surgeons, but also reduces financial burden and eliminates risky long-distance travel for patients[1]. To improve the efficiency and safety of telesurgery, a novel 3D visualization system with augmented reality fusion is indispensable. However, the most widely used displays in telesurgery only offer binocular views with limited depth perception[2, 3]. In this we a visualization method based on autostereoscopic 3D display and AR fusion. The overall workflow of the proposed visualization method As a preparation, the preoperative medical data is acquired from medical imaging and segmented into external surface models and internal organ models. During telesurgery, the point cloud of the patient is captured by an RGB-D camera and transmitted to the local site. Before being displayed on an autostereoscopic display, the preoperative external surface of the same patient is registered to the intraoperative point cloud, and then the preoperative internal organ model is aligned to the intraoperative coordinate. By applying alpha blending of the intraoperative point cloud and preoperative organ model and rearranging the multi-view images into elemental images, we can display a fused 3D scene with naked-eye depth perception for