Eliminate Distortion in Wide Angle Imaging for Machine Vision Applications

Author: Mark Peterson
Tuesday, December 10, 2024
Theia Technologies

Today’s vision systems have many advantages if you have the right lens for the job. Applications such as autonomous mobile robots (AMRs), bin picking, stereo vision, and agricultural monitoring all require wide angle lenses. Until recently, only fisheye lenses were available for imaging ultra wide fields of view. But fisheye lenses have high levels of barrel distortion, affecting resolution at image edges, ultimately limiting the application uses for these lenses. Only rectilinear lenses provide ultra wide fields of view and correct the barrel distortion inherent in traditional wide angle lenses without losing resolution. This report presents the challenges of using traditional wide angle lenses and discusses technological innovations to address these issues to advance the practical use of wide angle optics in machine vision applications.