Calibration of a dual-PTZ camera system for stereo vision

Yau Zen Chang*, Jung Fu Hou, Yi Hsiang Tsao, Shih Tseng Lee

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

In this paper, we propose a calibration process for the intrinsic and extrinsic parameters of dual-PTZ camera systems. The calibration is based on a complete definition of six coordinate systems fixed at the image planes, and the pan and tilt rotation axes of the cameras. Misalignments between estimated and ideal coordinates of image corners are formed into cost values to be solved by the Nelder-Mead simplex optimization method. Experimental results show that the system is able to obtain 3D coordinates of objects with a consistent accuracy of 1 mm when the distance between the dual-PTZ camera set and the objects are from 0.9 to 1.1 meters.

Original languageEnglish
Title of host publicationApplications of Digital Image Processing XXXIII
DOIs
StatePublished - 2010
EventApplications of Digital Image Processing XXXIII - San Diego, CA, United States
Duration: 02 08 201004 08 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7798
ISSN (Print)0277-786X

Conference

ConferenceApplications of Digital Image Processing XXXIII
Country/TerritoryUnited States
CitySan Diego, CA
Period02/08/1004/08/10

Keywords

  • 3D methods
  • Calibration
  • Imaging
  • PTZ camera
  • Stereo vision

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