T. Auer, S. Brantner, and A. Pinz. The integration of optical and magnetic tracking for multi-user augmented reality. In M. Gervaut, D. Schmalstieg, and A. Hildebrand, editors, Virtual Environments '99. Proceedings of the Eurographics Workshop in Vienna, Austria, pages 43--52, 1999.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....lightning conditions and or special cameras are required to obtain useful results (e.g. 14] and there is still problem with occlusions by the user s body or parts of the scene. Sensor based tracking has been widely used in VR applications, sometimes in combination with optical tracking as in [1]. Magnetic sensors are the most common alternative. They offer enough precision in the data acquisition and are rather robust to external conditions, providing that no metallic parts are in contact with the sensors and that no other sources of magnetic interference are present. The main drawback ....

T. Auer, S. Brantner, and A. Pinz. The integration of optical and magnetic tracking for multi--user augmented reality. In Michael Gervautz, Dieter Schmalstieg, and Axel Hildebrand, editors, Virtual Environments '99. Proceedings of the Eurographics Workshop in Vienna, Austria, pages 43--52, 1999.

....investigation of consistency in vision. 4 Applications This section of the paper intends to give an overview of applications of active fusion, entropy minimization, and consistency evaluation in object recognition and in augmented reality. For detailed presentations the reader is referred to [8, 19, 4, 23]. 4.1 Active Object Recognition We have set up an active vision laboratory (Fig. 2) which allows us to place objects on a turntable and to view them by a computer controlled camera system which is mounted to a frame at the wall. Together with flexible illumination by four independently switchable ....

....which changes continuously subject to user s head motion. Head (i.e. helmet) position and pose have to be recovered in relation to a scene coordinate system. This is achieved by the identification and continuous tracking of visual landmarks in the scene. We have developed a hybrid tracking system [4] which fuses optical tracking (very accurate but slow and not sufficiently robust) and magnetic tracking (which is commercial state of the art in VR AR tracking: very fast and robust, but inaccurate) When we want to use optical tracking, we require to know a sufficient number of visual ....

[Article contains additional citation context not shown here]

Th. Auer and A. Pinz. The integration of optical and magnetic tracking for multi-user augmented reality. Computers&Graphics, 23(6):805--808, 1999.

.... of tracking technologies for virtual environments) Significant improvements have been achieved by using hybrid tracking systems which combine the strengths and eliminating the disadvantages of complementary sensing systems (e.g. optical and inertial tracking [3] optical and magnetic tracking [4]) Tracking constitutes a major current field of research in VR AR, and many specific approaches to tracking have been reported in recent literature (e.g. 5] 6] 7] Commercial systems for tracking in VR AR have been around for several years ( e.g. Intersense: www.isense.com, Polhemus: ....

T. Auer and A. Pinz, "The integration of optical and magnetic tracking for multi-user augmented reality," Computers & Graphics, vol. 23, no. 6, pp. 805--808, 1999.

....the number of tracked features. Whereas the optical tracking system generates better position data than the magnetic tracker, the real performance di erence is in orientation computation, where the average error is reduced by at least one order of magnitude. More detailed results can be found in [9]. 4. Conclusion and outlook We have presented a hybrid tracking system for tracking in augmented reality which generates an output more precise than a stand alone magnetic system and is faster and more robust than an optical tracking system (by using data from the magnetic tracker) In addition, ....

Auer T, Brantner S, Pinz A. The integration of optical and magnetic tracking for multi-user augmented reality. In: Gervautz M, Hildebrand A, Schmalstieg D, editors. Virtual environments '99. Berlin: Springer, 1999. p. 43}52. 808 T. Auer, A. Pinz / Computers & Graphics 23 (1999) 805}808

No context found.

T. Auer, S. Brantner, and A. Pinz. The integration of optical and magnetic tracking for multi-user augmented reality. In M. Gervaut, D. Schmalstieg, and A. Hildebrand, editors, Virtual Environments '99. Proceedings of the Eurographics Workshop in Vienna, Austria, pages 43--52, 1999.

No context found.

T. Auer and A. Pinz. The integration of optical and magnetic tracking for multi-user augmented reality. Computers and Graphics, 23(6):805--808, 1999. 3

No context found.

T. Auer, S. Brantner, and A. Pinz. The integration of optical and magnetic tracking for multi-user augmented reality. In M. Gervaut, D. Schmalstieg, and A. Hildebrand, editors, Virtual Environments '99. Proceedings of the Eurographics Workshop in Vienna, Austria, pages 43--52, 1999.

No context found.

Thomas Auer, Axel Pinz. "The Integration of Optical and Magnetic Tracking for Multi-User Augmented Reality". Computer & Graphics 23, 1999. pp 805-808.

No context found.

T. Auer and A. Pinz. The integration of optical and magnetic tracking for multi-user augmented reality. Computers and Graphics, 23(6):805--808, 1999. 3

No context found.

T. Auer and A. Pinz. The integration of optical and magnetic tracking for multi-user augmented reality. Computers and Graphics, 23(6):805--808, 1999.

No context found.

T. Auer, S. Brantner, and A. Pinz. The integration of optical and magnetic tracking for multi-user augmented reality. In M. Gervautz, A. Hildebrand, and D. Schmalstieg, editors, Virtual Environments '99, pages 43--52. Springer Verlag, 1999.

Online articles have much greater impact   More about CiteSeer.IST   Add search form to your site   Submit documents   Feedback  

CiteSeer.IST - Copyright Penn State and NEC