Height information aided 3D real‐time large‐scale underground user positioning

Research on 3D Positioning and Navigation Technologies in Underground Mine

For the development of mining industry and its urgent demand for positioning and navigation technology, three new underground mine positioning and navigation systems based on the existing positioning technologies would be investigated and studied in this paper, where Wireless Ethernet-based navigation system as a new navigation system is first used in underground mine. Three types of positionin...

positioning underground reservoir by underground dams by using geoelectric method

today, saving and storing water are among the most critical and important issues which have attracted the world's attention. history of storing water in the form of ghanat and water reservoir by iranians goes back to ancient times. studies on this field show that benefiting from underground dams was one of the methods employed for exploiting water in past times. in countries like iran, due...

Automatic 3D Underground Mine Mapping

For several years, our research group has been developing methods for automated modeling of 3D environments. In September, 2002, we were given the opportunity to demonstrate our mapping capability in an underground coal mine. The opportunity arose as a result of the Quecreek mine accident, in which an inaccurate map caused miners to breach an abandoned, water-filled mine, trapping them for seve...

The Information Visualizer: A 3D User Interface for Information Retrieval

Cinematographic User Models for Automated Realtime Camera Control in Dynamic 3D Environments

Advances in 3D graphics technology have accelerated the construction of dynamic 3D environments. Despite their promise for scientific and educational applications, much of this potential has gone unrealized because runtime camera control software lacks user-sensitivity. Current environments rely on sequences of viewpoints that directly require the user’s control or are based primarily on action...