NDLI: Optical see-through calibration with vision-based trackers: propagation of projection matrices

Content Provider	IEEE Xplore Digital Library
Author	Genc, Y. Tuceryan, M. Khamene, A. Navab, N.
Copyright Year	2001
Description	Author affiliation: Imaging & Visualization Dept., Siemens Corp. Res. Inc., Princeton, NJ, USA (Genc, Y.)
Abstract	Recently, M. Tuceryan and N. Navab (2000) introduced a method for calibrating an optical see-through system based on the alignment of a set of 2D markers on the display with a single point in the scene, while not restricting the user's head movements (the single point active alignment method or SPAAM). This method is applicable with any tracking system, provided that it gives the pose of the sensor attached to the see-through display. When cameras are used for tracking, one can avoid the computationally intensive and potentially unstable pose estimation process. A vision-based tracker usually consists of a camera attached to the optical see-through display, which observes a set of known features in the scene. From the observed locations of these features, the pose of the camera can be computed. Most pose computation methods are very involved and can be unstable at times. The authors propose to keep the projection matrix for the tracker camera without decomposing it into intrinsic and extrinsic parameters and use it within the SPAAM method directly. The propagation of the projection matrices from the tracker camera to the virtual camera, representing the eye and the optical see-through display combination as a pinhole camera model, allows us to skip the most time consuming and potentially unstable step of registration, namely, estimating the pose of the tracker camera.
Sponsorship	Siemens Crop. Res.
Starting Page	147
Ending Page	156
File Size	666941
Page Count	10
File Format	PDF
ISBN	0769513751
DOI	10.1109/ISAR.2001.970524
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-10-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Calibration Optical propagation Cameras Augmented reality Optical sensors Layout Biomedical optical imaging Computer graphics Computer displays Matrix decomposition
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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