Auto-calibration of a Laser 3D Color Digitization System

  • Authors:

  • Xiaojie Li;Bao-Zhen Ge;Dan Zhao;Qing-Guo Tian;K. David Young

  • Affiliations:

  • College of Precision Instruments and Opto-electronics Engineering and Key Ministry of Education Laboratory of Opto-electronics Information and Technical Science, Tianjin University, Tianjin, China ...;College of Precision Instruments and Opto-electronics Engineering and Key Ministry of Education Laboratory of Opto-electronics Information and Technical Science, Tianjin University, Tianjin, China ...;College of Precision Instruments and Opto-electronics Engineering and Key Ministry of Education Laboratory of Opto-electronics Information and Technical Science, Tianjin University, Tianjin, China ...;College of Precision Instruments and Opto-electronics Engineering and Key Ministry of Education Laboratory of Opto-electronics Information and Technical Science, Tianjin University, Tianjin, China ...;Embedded Systems Institute and Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong,

  • Venue:
  • ICDHM '09 Proceedings of the 2nd International Conference on Digital Human Modeling: Held as Part of HCI International 2009
  • Year:
  • 2009

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Abstract

A typical 3D color digitization system is composed of 3D sensors to obtain 3D information, and color sensors to obtain color information. Sensor calibration plays a key role in determining the correctness and accuracy of the 3D color digitization data. In order to carry out the calibration quickly and accurately, this paper introduces an automated calibration process which utilizes 3D dynamic precision fiducials, with which calibration dot pairs are extracted automatically, and as the corresponding data are processed via a calibration algorithm. This automated was experimentally verified to be fast and effective. Both the 3D information and color information are extracted such that the 3D sensors and the color sensors are calibrated with one automated calibration process. We believe it is the first such calibration process for a 3D color digitization system.