Efficient optical camera tracking in virtual sets

Optical tracking systems have become particularly popular in virtual studios applications tending to substitute electromechanical ones. However, optical systems are reported to be inferior in terms of accuracy in camera motion estimation. Moreover, marker-based approaches often cause problems in ima...

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Bibliographic Details
Published in:IEEE transactions on image processing 2001-04, Vol.10 (4), p.609-622
Main Authors: Xirouhakis, Y.S., Drosopoulos, A.I., Delopoulos, A.N.
Format: Article
Language:English
Subjects:
Algorithms
Applied sciences
Artificial intelligence
Cameras
Computational modeling
Computer science
control theory
systems
Computer simulation
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Image forming and processing
Image processing
Imaging and optical processing
Information, signal and communications theory
Layout
Localization
Motion estimation
Object oriented modeling
Optical tracking
Optics
Pattern recognition. Digital image processing. Computational geometry
Physics
Polynomials
Production
Rendering (computer graphics)
Signal processing
Studios
Telecommunications and information theory
Tracking
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Summary:Optical tracking systems have become particularly popular in virtual studios applications tending to substitute electromechanical ones. However, optical systems are reported to be inferior in terms of accuracy in camera motion estimation. Moreover, marker-based approaches often cause problems in image/video compositing and impose undesirable constraints on camera movement, present work introduces a novel methodology for the construction of a two-tone blue screen, which allows the localization of camera in three-dimensional (3-D) space on the basis of the captured sequence. At the same time, a novel algorithm is presented for the extraction of camera's 3-D motion parameters based on 3-D-to-two-dimensional (2-D) line correspondences. Simulated experiments have been included to illustrate the performance of the proposed system.
ISSN:1057-7149
1941-0042
DOI:10.1109/83.913595