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A novel method for simultaneously acquiring and registering range data of a real object from different viewpoints is presented. Currently, most 3D model reconstruction techniques do not cooperate with the existing range data for shape recovery of future viewpoints. In this work, a stereo vision system is developed for 3D model acquisition. To reduce the computation and increase the accuracy of stereo...
This paper presents an advanced augmented reality system for spinal surgery assistance, and develops entry-point guidance prior to vertebroplasty spinal surgery. Based on image-based marker detection and tracking, the proposed camera-projector system superimposes pre-operative 3-D images onto patients. The patients’ preoperative 3-D image model is registered by projecting it onto the patient such...
This paper proposed a vision system that enables the wheel-robot could self-localization and navigation, and a strategy simulator software for robot soccer competition. The vision system is based on an omnidirectional camera to develop real-time image capture, doors and ball recognition software. It is a framework for visual self-localization of a mobile robot using a parametric model obtained from...
This paper aims to be an outlet for speeding up workflow of orthopedics surgery and be helpful for surgeons to simply coordinate transformations between several imaging displays. Based on epipolar geometry and simple feature landmarks, a 3-D superimposed imaging approach is developed via the construction of the camera-projector system. The superimposed approach is to rectify the perspective, X-ray...
In this paper we propose a 3D reconstruction algorithm by combining shape from silhouette with stereo. Visual hull of the object is first derived from multi-view silhouette images. Pairwise stereo matching for shape refinement is then accomplished using the best viewable images. Based on the reduced correspondence searching range constrained by contact points and bounding edges, significant improvement...
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