Name
Abstract | ||
|---|---|---|
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 exactly known. In this paper we show how the distortion center can be absorbed into a new radial fundamental matrix. This new formulation is much more practical in reality as it allows also digital zoom, cropped images and camera-lens systems where the distortion center does not exactly coincide with the image center. In particular we start from the setting where only one of the two images contains radial distortion, analyze the structure of the particular radial fundamental matrix and show that the technique also generalizes to other linear multi-view relationships like trifocal tensor and homography. For the new radial fundamental matrix we propose different estimation algorithms from 9,10 and 11 points. We show how to extract the epipoles and prove the practical applicability on several epipolar geometry image pairs with strong distortion that - to the best of our knowledge - no other existing algorithm can handle properly. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1007/978-3-642-37447-0_11 | ACCV (4) |
Keywords | Field | DocType |
radial distortion,distortion center,classical epipolar geometry,new formulation,new radial fundamental matrix,particular radial fundamental matrix,unknown radial distortion center,image center,multiple view geometry problem,strong distortion,radial undistortion model,radial fundamental matrix | Distortion (optics),Computer vision,Point correspondence,Epipolar geometry,Computer science,Homography,Artificial intelligence,Geometry,Distortion,Fundamental matrix (computer vision),Trifocal tensor,Digital zoom | Conference |
Citations | PageRank | References |
5 | 0.46 | 15 |
Authors | ||
7 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| José Henrique Brito | 1 | 11 | 0.93 |
| Roland Angst | 2 | 288 | 12.79 |
| Kevin Köser | 3 | 282 | 15.05 |
| Christopher Zach | 4 | 1457 | 84.01 |
| Pedro Branco | 5 | 5 | 0.46 |
| Manuel João Ferreira | 6 | 7 | 1.16 |
| Marc Pollefeys | 7 | 7671 | 475.90 |