The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XL-3/W1
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-3/W1, 137–142, 2014
https://doi.org/10.5194/isprsarchives-XL-3-W1-137-2014
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-3/W1, 137–142, 2014
https://doi.org/10.5194/isprsarchives-XL-3-W1-137-2014

  05 Mar 2014

05 Mar 2014

CALIBRATION OF PANORAMIC CAMERAS WITH CODED TARGETS AND A 3D CALIBRATION FIELD

A. M. G. Tommaselli1, J. Marcato Jr.1,2, M. V. A. Moraes1, S. L. A. Silva1, and A. O. Artero1 A. M. G. Tommaselli et al.
  • 1Faculty of Sciences and Tecnology, Univ Estadual Paulista, Unesp, 19060-900 Pres. Prudente, SP, Brazil
  • 2FAENG, UFMS – Universidade Federal de Mato Grosso do Sul, Campo Grande-MS, 79070-900, Brazil

Keywords: Calibration, Targets, Automation, Close Range, Panoramic, Fisheye

Abstract. The aim of this paper is to present results achieved with a 3D terrestrial calibration field, designed for calibrating digital cameras and omnidirectional sensors. This terrestrial calibration field is composed of 139 ARUCO coded targets. Some experiments were performed using a Nikon D3100 digital camera with 8mm Samyang Bower fisheye lens. The camera was calibrated in this terrestrial test field using a conventional bundle adjustment with the Collinearity and mathematical models specially designed for fisheye lenses. The CMC software (Calibration with Multiple Cameras), developed in-house, was used for the calibration trials. This software was modified to use fisheye models to which the Conrady-Brown distortion equations were added. The target identification and image measurements of its four corners were performed automatically with a public software. Several experiments were performed with 16 images and the results were presented and compared. Besides the calibration of fish-eye cameras, the field was designed for calibration of a catadrioptic system and brief informations on the calibration of this unit will be provided in the paper.