Print Email Facebook Twitter Spatial Navigation for Context-aware Video Surveillance Title Spatial Navigation for Context-aware Video Surveillance Author Piguillet, H. Contributor Post, F.H. (mentor) De Haan, G. (mentor) Faculty Electrical Engineering, Mathematics and Computer Science Department Mediamatics Date 2010-04-20 Abstract An increasing number of cameras is being used to monitor a growing range of environments. Consequently, surveillance systems consist of an increasing number of screens to display all incoming video streams, making it difficult for observers to maintain a mental model of spatial relations between videos. A number of systems is developed aiming at improving the observer’s spatial awareness by integrating videos with their spatial context, a 3D model of the monitored environment. In these systems, video content can be viewed from virtual cameras that correspond with the cameras in the real world. To switch between views on certain videos, the observer has to make a transition between the corresponding virtual cameras by some means of navigation. While studying state-of-the-art 3D surveillance systems, we have observed that not much attention has been paid on exploring more sophisticated viewpoint transitions. In this thesis, different classes of camera relations are identified. For each class, a viewpoint transition mechanism is developed with the focus on reducing distortion of the video information during transitions. In order to navigate through the virtual environment, viewpoint transitions have to be initiated to switch between videos. As part of this thesis, a number of concepts have been developed that provide controls to the viewpoint transitions in the form of 3D elements that are added to the virtual environment. We have implemented our navigation concepts in a prototype, which was used for a user study. This thesis concludes with the results from this user study and our vision on future work in the field of context-aware surveillance. Subject videosurveillancecameranavigation3D environmentscomputer graphics To reference this document use: http://resolver.tudelft.nl/uuid:a9810b84-f922-4dcc-93e4-2de360d2e627 Embargo date 2010-04-22 Part of collection Student theses Document type master thesis Rights (c) 2010 Piguillet, H. Files PDF thesis_-_hpiguillet_.pdf 37.63 MB Close viewer /islandora/object/uuid:a9810b84-f922-4dcc-93e4-2de360d2e627/datastream/OBJ/view