Title: Registration tasks for a hybrid tracking system for medical augmented reality
Authors: Schwald, Bernd
Seibert, Helmut
Citation: Journal of WSCG. 2004, vol. 12, no. 1-3, p. 411-418.
Issue Date: 2004
Publisher: UNION Agency
Document type: článek
URI: http://wscg.zcu.cz/wscg2004/Papers_2004_Full/J31.pdf
ISSN: 1213-6972
Keywords: rozšířená realita;virtuální realita;hybridní sledovací systémy;lékařské zobrazování
Keywords in different language: augmented reality;virtual reality;hybrid tracking systems;medical imaging
Abstract: Tracking technologies for medical Virtual or Augmented Reality (VR/AR) applications have to fulfill demanding requirements. A hybrid tracking system can merge positive attributes of different tracking technologies, for example optical and electromagnetic, and try to compensate the bad ones. The alignment of two or more tracking systems by means of transforming all measured data from different systems into one common coordinate system is a fundamental precondition. Usage and processing of time stamps assigned to each measurement is a very effective element in order to achieve a higher accuracy in the alignment procedure and during later use. The algorithms for the alignment of tracking systems can also be used for the registration of the patient, another typical task in medical VR/AR applications. This paper describes both procedures in detail, including algorithms and results from test sequences. The representative tests illustrate, that the proposed algorithms provide satisfying results. An overview of the integration of the hybrid tracking system in a medical AR system is given. Adverse conditions like environmental influences on the tracking systems and the identification of corresponding measurements of two tracking systems are discussed.
Rights: © UNION Agency
Appears in Collections:Volume 12, number 1-3 (2004)

Files in This Item:
File Description SizeFormat 
J31.pdfPlný text459,51 kBAdobe PDFView/Open

Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/1848

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.