The paper analyses requirements on virtual urban scenes presented on the web. Basic principles and methods for data preparation and processing are introduced. Several useful and practical approaches are shown on examples taken from one real implementation of a virtual city – the Virtual Old Prague project. The paper explains why complex virtual cities are still missing on the web and shows ways...

ISSN 2277 5064 | © 2012 Bonfring Abstract---Gestures do speak well than commands. We usually interact computers with GUI based HID devices. It would be more realistic if the Holy Grail gesture based natural interface enables illiterates even to augment machine usability. This evolution shouldn’t be an overhead to the consumerism. Also economical constraint should not force this to be inefficien...

Head Mounted Displays (HMDs) allow users to experience virtual reality with a great level of immersion. However, even simple physical tasks like drinking a beverage can be difficult and awkward while in a virtual reality experience. We explore mixed reality renderings that selectively incorporate the physical world into the virtual world for interactions with physical objects. We conducted a us...

Networks of the future will contain a vast array of sensors and actuators which users will wish to interact with. Orchestrating this task effectively and efficiently will be one of the major challenges facing the deployment of these future networks. We propose a three-tier architecture which provides a middleware to resolve high-level service requests from applications to low-level sensor or ac...

Within the framework of a realist view of the physical world, there are two general theories of the nature of perception. The first is strong direct realism (SDR). This accepts a realist view of the physical world, and claims that our perceptual access to this world is psychologically direct. The second is the broad representative theory (BRT). This too accepts a realist view of the world, but ...