Radial Distortion from Epipolar Constraint for Rectilinear Cameras

Erratum: Ville V. Lehtola, et al. Radial Distortion from Epipolar Constraint for Rectilinear Cameras. J. Imaging 2017, 3, 8

Towards Calibrating a Pan-Tilt-Zoom Camera Network

In this paper we discuss the problem of recovering the calibration of a network of pan-tilt-zoom cameras. The intrinsic parameters of each camera over its full range of zoom settings are estimated through a two step procedure. We first determine the intrinsic parameters at the camera's lowest zoom setting very accurately by capturing an extended panorama. Our model includes two parameters of ra...

Unknown Radial Distortion Centers in Multiple View Geometry Problems

The radial undistortion model proposed by Fitzgibbon and the radial fundamental matrix were early steps to extend classical epipolar geometry to distorted cameras. Later minimal solvers have been proposed to find relative pose and radial distortion, given point correspondences between images. However, a big drawback of all these approaches is that they require the distortion center to be exactl...

Self-calibration of Stereo Cameras with a Probabilistic Camera Model including Lens Distortion

In this paper we present a new method for the selfcalibration of a stereo camera pair including lens distortion. A single stereo image pair is used without calibration object or prior knowledge of the scene. The method is based on the estimation of a stereo image correspondence field followed by extraction of the calibration parameters. The correspondence field is a Markov Random Field motion e...

On the epipolar geometry between two images with lens distortion

In order to achieve a 3D, either Euclidean or projective, reconstruction with high precision, one has to consider lens distortion. In almost all work on multiple-views problems in computer vision, a camera is modeled as a pinhole. Lens distortion has usually been corrected off-line. This paper intends to consider lens distortion as an integral part of a camera. We first describe the epipolar ge...