We present herein a technique to calibrate fisheye lenses using cross diffractive optical elements. The setup generated a robust and accurate virtual calibration grid, and the calibration was performed by rotating the camera around two axes. We propose a comparison of three fisheye mathematical models and an evaluation of the number of images in the calibration process. The comparison of our experimental data according to the 3D calibration object results showed that our technique is efficient and reliable.
© 2013 Optical Society of America
Diffraction and Gratings
Original Manuscript: January 29, 2013
Revised Manuscript: February 27, 2013
Manuscript Accepted: March 5, 2013
Published: April 12, 2013
Aymen Arfaoui and Simon Thibault, "Fisheye lens calibration using virtual grid," Appl. Opt. 52, 2577-2583 (2013)