Name
Title | ||
|---|---|---|
A Practical Method for Fully Automatic Intrinsic Camera Calibration Using Directionally Encoded Light |
Abstract | ||
|---|---|---|
Calibrating the intrinsic properties of a camera is one of the fundamental tasks required for a variety of computer vision and image processing tasks. The precise measurement of focal length, location of the principal point as well as distortion parameters of the lens is crucial, for example, for 3D reconstruction [27]. Although a variety of methods exist to achieve this goal, they are often cumbersome to carry out, require substantial manual interaction, expert knowledge, and a significant operating volume. We propose a novel calibration method based on the usage of directionally encoded light rays for estimating the intrinsic parameters. It enables a fully automatic calibration with a small device mounted close to the front lens element and still enables an accuracy comparable to standard methods even when the lens is focused up to infinity. Our method overcomes the mentioned limitations since it guarantees an accurate calibration without any human intervention while requiring only a limited amount of space. Besides that, the approach also allows to estimate the distance of the focal plane as well as the size of the aperture. We demonstrate the advantages of the proposed method by evaluating several camera/lens configurations using prototypical devices. |
Year | DOI | Venue |
|---|---|---|
2017 | 10.1109/CVPR.2017.21 | 2017 IEEE Conference on Computer Vision and Pattern Recognition (CVPR) |
Keywords | Field | DocType |
fully automatic intrinsic camera calibration,intrinsic properties,computer vision,image processing tasks,focal length,distortion parameters,directionally encoded light rays,intrinsic parameters,lens element,focal plane,lens configurations | Aperture,Computer vision,Computer science,Cardinal point,Camera auto-calibration,Focal length,Lens (optics),Camera resectioning,Artificial intelligence,Distortion,3D reconstruction | Conference |
Volume | Issue | ISSN |
2017 | 1 | 1063-6919 |
ISBN | Citations | PageRank |
978-1-5386-0458-8 | 2 | 0.38 |
References | Authors | |
18 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Mahdi Abbaspour Tehrani | 1 | 4 | 2.44 |
| Thabo Beeler | 2 | 639 | 30.77 |
| Anselm Grundhöfer | 3 | 254 | 18.72 |