Steps toward accommodating variable position tracking accuracy in a mobile augmented reality system Export

@inproceedings{citeulike:4009284, abstract = {The position-tracking accuracy of a location-aware mobile system can change dynamically as a function of the user's location and other variables specific to the tracker technology used. This is especially problematic for mobile augmented reality systems, which ideally require extremely precise position tracking for the user's head, but which may not always be able to achieve the necessary level of accuracy. While it is possible to ignore variable positional accuracy in an augmented reality user interface, this can make for a confusing system; for example, when accuracy is low, virtual objects that are nominally registered with real ones may be too far off to be of use. To address this problem, we describe the early stages of an experimental mobile augmented reality system that adapts its user interface automatically to accommodate changes in tracking accuracy. Our system employs different technologies for tracking a user's position, resulting in a wide variation in positional accuracy: an indoor ultrasonic tracker and an outdoor real-time kinematic GPS system. For areas outside the range of both, we introduce a dead-reckoning approach that combines a pedometer and orientation tracker with environmental knowledge expressed in spatial maps and accessibility graphs. We present preliminary results from this approach in the context of a navigational guidance system that helps users to orient themselves in an unfamiliar environment. Our system uses inferencing and path planning to guide users toward targets that they choose. 1}, author = {H\"{o}llerer, Tobias and Hallaway, Drexel and Tinna, Navdeep and Feiner, Steven}, booktitle = {In Proc. AIMS'01}, citeulike-article-id = {4009284}, citeulike-linkout-0 = {http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.24.1831}, keywords = {dead-reckoning, gps, indoor, orientation-tracker, outdoor, pedometer, ultrasonic}, pages = {31--37}, posted-at = {2009-02-04 22:19:44}, priority = {2}, title = {Steps toward accommodating variable position tracking accuracy in a mobile augmented reality system}, url = {http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.24.1831}, year = {2001} }

TY - CONF ID - citeulike:4009284 L3 - citeulike-article-id:4009284 N2 - The position-tracking accuracy of a location-aware mobile system can change dynamically as a function of the user’s location and other variables specific to the tracker technology used. This is especially problematic for mobile augmented reality systems, which ideally require extremely precise position tracking for the user’s head, but which may not always be able to achieve the necessary level of accuracy. While it is possible to ignore variable positional accuracy in an augmented reality user interface, this can make for a confusing system; for example, when accuracy is low, virtual objects that are nominally registered with real ones may be too far off to be of use. To address this problem, we describe the early stages of an experimental mobile augmented reality system that adapts its user interface automatically to accommodate changes in tracking accuracy. Our system employs different technologies for tracking a user’s position, resulting in a wide variation in positional accuracy: an indoor ultrasonic tracker and an outdoor real-time kinematic GPS system. For areas outside the range of both, we introduce a dead-reckoning approach that combines a pedometer and orientation tracker with environmental knowledge expressed in spatial maps and accessibility graphs. We present preliminary results from this approach in the context of a navigational guidance system that helps users to orient themselves in an unfamiliar environment. Our system uses inferencing and path planning to guide users toward targets that they choose. 1 EP - 37 TI - Steps toward accommodating variable position tracking accuracy in a mobile augmented reality system T2 - In Proc. AIMS’01 SP - 31 KW - dead-reckoning KW - gps KW - indoor KW - orientation-tracker KW - outdoor KW - pedometer KW - ultrasonic AU - Höllerer, Tobias AU - Hallaway, Drexel AU - Tinna, Navdeep AU - Feiner, Steven PY - 2001/// UR - http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.24.1831 ER -