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Computer aided surgery (CAS) often involves the use of instrument, implants and other interactive device whose pose is tracked in real time so as to provide navigated positioning of the instrument to guide the surgeon carrying out the operation. The infrared tracking system has been proved to be a valuable alternative to tracking system based on other technologies, such as magnetic, acoustic, gyroscopic...
The Wireless Capsule Endoscopy (WCE) has been gradually used in hospitals due to its breakthrough that it can view the whole gastrointestinal with less suffering. Nevertheless, it generates too many images each time causing a huge burden to physicians; therefore it's meaningful to help physicians to employ computerized methods to diagnose. One important way is to build up three-dimensional (3D) model...
Because of the lack of interactivity in E-learning, the design ideas are proposed to build a 3D interactive virtual learning environment which is built based on OpenSim platform-an open source virtual reality platform in the paper. The architecture of OpenSim platform is introduced, the development process of a 3D interactive virtual learning environment is summarized based on OpenSim platform, and...
Camera calibration is a necessary step in 3D computer vision in order to extract metric information from 2D images. In the camera calibration applying to multi-camera localization, it's prerequisite that all cameras, which mounted apart from each other, must observe the whole calibration object simultaneously. However, it's inconvenient to satisfy using traditional 3D or 2D calibration objects. In...
At present, the lack of emotion is very serious in E-Learning. The most learning platforms can't imitate teaching behavior of the real teacher, and can't provide the emotional communication between teachers and students, so students are easy to lose learning interest. In 3D virtual learning environment based on virtual reality, a 3D virtual teacher can imitate the figure, action, facial expression...
At present, the lack of emotion is very serious in E-Learning. A solution is proposed in this paper. The importance of emotional education is discussed; the feasibility of emotional education is indicated based on virtual reality in E-Learning, including theories and advantages; the method of emotional teaching design is put forward; the emotional education system is designed and implemented in the...
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