2nd International ICST Conference on Immersive Telecommunications

Research Article

Framework for hierarchical calibration of multi-camera systems for teleimmersion

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  • @INPROCEEDINGS{10.4108/immerscom.2009.11,
        author={Gregorij Kurillo and Zeyu Li and Ruzena Bajcsy},
        title={Framework for hierarchical calibration of multi-camera systems for teleimmersion},
        proceedings={2nd International ICST Conference on Immersive Telecommunications},
        publisher={ICST},
        proceedings_a={IMMERSCOM},
        year={2010},
        month={5},
        keywords={teleimmersion external camera calibration multi-camera system},
        doi={10.4108/immerscom.2009.11}
    }
    
  • Gregorij Kurillo
    Zeyu Li
    Ruzena Bajcsy
    Year: 2010
    Framework for hierarchical calibration of multi-camera systems for teleimmersion
    IMMERSCOM
    ICST
    DOI: 10.4108/immerscom.2009.11
Gregorij Kurillo1,*, Zeyu Li1,*, Ruzena Bajcsy1,*
  • 1: University of California, Berkeley, Hearst Mining Bldg. #475, Berkeley, CA 94720-1764
*Contact email: gregorij@eecs.berkeley.edu, zeyuli@eecs.berkeley.edu, bajcsy@eecs.berkeley.edu

Abstract

In this paper we present framework for hierarchical calibration of multi-camera based teleimmersion systems. First, we calibrate the internal camera parameters and geometry of each stereo cluster using a checkerboard. Next, we present a robust and efficient method to externally calibrate the location of the stereo clusters using virtual calibration object created by two LED markers. Our novel algorithm does not require for all the cameras to share common workspace; only pairwise overlap is required. Finally, we address geometric correspondence between several remote locations by proposing a simple calibration method.