24-11-2012, 11:17 AM
WIKITUDE
[attachment=40932]
Wikitude is a mobile augmented reality software which was developed by the Austrian developer company Wikitude GmbH (formerly Mobilizy GmbH) and published in October 2008 as freeware. It displays information about the users' surroundings in a mobile camera view. Wikitude was the first publicly available application that used a location-based approach to Augmented Reality.[1][2]
How it works
For location-based Augmented Reality the position of objects on the screen of the mobile device is calculated using the user's position (by GPS or Wifi), the direction in which the user is facing (by using the compass) and accelerometer. In contrast, in marker-basedAugmented Reality a marker (marker, e.g. QR code) is used for tracking.
The location-based Augmented Reality view provides a direct view of reality "enhanced" with additional, computer-generated content, as opposed to a conventional map, which provides an abstract view from above.
The central element in the Wikitude World Browser is the location. Compared to regular web pages, where the location of the user plays a minor role, Wikitude World Browser is optimized for mobile location-based usage.
User Generated Content
Content in the Wikitude World Browser is mostly user generated. Content can be added by a webinterface, by KML, and ARML.[3] In addition, Web services are available to register the delivery of dynamic data. Wikitude is W3C member and OGC[4] member and is working to develop ARML further as part of a W3C ARML project. Discussion
Opinions differ as to whether the location-based approach of Augmented Reality pioneered by Wikitude can be considered as “augmented reality”.[5] There is also concern for the accuracy of the GPS, compass and motion sensors used to calculate the position of the virtual objects. Inaccuracies could accumulate to the point that they prevent delivering a feasible result. In practice, this technique proves to be much simpler to implement than ones using the marker-based approach. In a current listing of the Top 5 AR Apps from The Telegraph, three mobile applications use the location-based approach (Google Goggles used both approaches)
[attachment=40932]
Wikitude is a mobile augmented reality software which was developed by the Austrian developer company Wikitude GmbH (formerly Mobilizy GmbH) and published in October 2008 as freeware. It displays information about the users' surroundings in a mobile camera view. Wikitude was the first publicly available application that used a location-based approach to Augmented Reality.[1][2]
How it works
For location-based Augmented Reality the position of objects on the screen of the mobile device is calculated using the user's position (by GPS or Wifi), the direction in which the user is facing (by using the compass) and accelerometer. In contrast, in marker-basedAugmented Reality a marker (marker, e.g. QR code) is used for tracking.
The location-based Augmented Reality view provides a direct view of reality "enhanced" with additional, computer-generated content, as opposed to a conventional map, which provides an abstract view from above.
The central element in the Wikitude World Browser is the location. Compared to regular web pages, where the location of the user plays a minor role, Wikitude World Browser is optimized for mobile location-based usage.
User Generated Content
Content in the Wikitude World Browser is mostly user generated. Content can be added by a webinterface, by KML, and ARML.[3] In addition, Web services are available to register the delivery of dynamic data. Wikitude is W3C member and OGC[4] member and is working to develop ARML further as part of a W3C ARML project. Discussion
Opinions differ as to whether the location-based approach of Augmented Reality pioneered by Wikitude can be considered as “augmented reality”.[5] There is also concern for the accuracy of the GPS, compass and motion sensors used to calculate the position of the virtual objects. Inaccuracies could accumulate to the point that they prevent delivering a feasible result. In practice, this technique proves to be much simpler to implement than ones using the marker-based approach. In a current listing of the Top 5 AR Apps from The Telegraph, three mobile applications use the location-based approach (Google Goggles used both approaches)