| Summary: | 碩士 === 國立臺灣大學 === 資訊工程學研究所 === 101 === In this thesis, we present TelePort, a technique based on users’ spatial perception to intuitively interact with spaces using mobile devices. The versatile interaction can include directly controlling or manipulating objects in one space, acquiring some information from one space, touring in one space and so on. In order to provide intuitive interfaces, we support first person navigation during the interaction with space. Therefore, we combine the optical cue and the orientation cue extracted from a build-in camera and sensors in mobile device respectively to estimate the user’s motion and viewpoint. To immerse the user seamlessly into the virtual space, we provide two visualization methods to display the virtual space on the screen of the mobile device: one is the 2D visualization method which we build a 720 degrees three-dimensional spherical panorama to reconstruct the space scene, and the other is the 3D visualization method which we establish a 3D space model for spatial representation. Based on the proposed estimation and visualization methods, the spatial perception in the real world would be preserved in the virtual space and the virtual space navigation can simulate the corresponding motion as the user’s body gestures. Moreover, we applied the technique in two different categories of applications – applications to unfamiliar space and applications to familiar space. In the applications to unfamiliar space, we demonstrate “Dream of Dunhuang”, a remote guide system which allows visitors feeling like being in the Dunhuang cave only by one tablet. In the applications to familiar space, we demonstrate “Mobile Central Control Room for Surveillance” and “Smart Home Control Interface”, which are fast,intuitive and portable interfaces that make users can revisit the central control rooms or their houses anywhere and interact with the objects in the places based on their spatial memory. Finally, we compare our method with other traditional interfaces for environment interaction and evaluate our interface in terms of the level of immersion and presence, completion time and error rate. The experimental results show our interface outperforms the other methods.
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