Fast Barrel Distortion Correction for Wide-Angle Cameras

Wide-Angle Lens Distortion Correction Using Division Models

In this paper we propose a new method to automatically correct wide-angle lens distortion from the distorted lines generated by the projection on the image of 3D straight lines. We have to deal with two major problems: on the one hand, wide-angle lenses produce a strong distortion, which makes the detection of distorted lines a particularly difficult task. On the other hand, the usual single pa...

Correcting Radial Distortion of Cameras with Wide Angle Lens Using Point Correspondences

Most algorithms in 3-D Computer Vision rely on the pinhole camera model because of its simplicity, whereas video optics, especially wide-angle lens, generates a lot of non-linear distortion. In some applications, for instance in stereo vision systems and robotic systems, this distortion can be critical. Camera calibration consists of finding the mapping between the 3-D space and the camera plan...

Wide - Angle Stereoscopic Communication with Four Cameras

In projection-based virtual reality systems, such as the CAVE, users can observe immersive stereoscopic images. Most of the images, however, are synthesized from polygonal models of the virtual world. This is because the resolution of the real images of the physical world is not enough for large screen systems. In this paper, four cameras are utilized to improve the quality of wide-angle stereo...

The Geometric Distortion Correction for the Wfpc Cameras

Wide-angle noncontact and small-angle contact cameras.

The theoretical wide-angle model of the human eye and the principle of separation of ophthalmoscopic illumination and observation apertures have been used to design two fundamentally different ophthalmoscopic cameras: a 90 degree wide-angle, noncontact camera and a high-resolution macula-disc camera. The chief advantage of the 90 degree noncontact camera is the increase in contrast achieved by ...