Prior Knowledge About Camera Motion for Outlier Removal in Feature Matching

Elisavet K. Stathopoulou, Ronny Hänsch, Olaf Hellwich

2015

Abstract

The search of corresponding points in between images of the same scene is a well known problem in many computer vision applications. In particular most structure from motion techniques depend heavily on the correct estimation of corresponding image points. Most commonly used approaches make neither assumptions about the 3D scene nor about the relative positions of the cameras and model both as completely unknown. This general model results in a brute force comparison of all keypoints in one image to all points in all other images. In reality this model is often far too general because coarse prior knowledge about the cameras is often available. For example, several imaging systems are equipped with positioning devices which deliver pose information of the camera. Such information can be used to constrain the subsequent point matching not only to reduce the computational load, but also to increase the accuracy of path estimation and 3D reconstruction. This study presents Guided Matching as a new matching algorithm towards this direction. The proposed algorithm outperforms brute force matching in speed as well as number and accuracy of correspondences, given well estimated priors.

Paper Citation

in Harvard Style

Stathopoulou E., Hänsch R. and Hellwich O. (2015). Prior Knowledge About Camera Motion for Outlier Removal in Feature Matching . In Proceedings of the 10th International Conference on Computer Vision Theory and Applications - Volume 2: MMS-ER3D, (VISIGRAPP 2015) ISBN 978-989-758-090-1, pages 603-610. DOI: 10.5220/0005456406030610

in Bibtex Style

@conference{mms-er3d15,
author={Elisavet K. Stathopoulou and Ronny Hänsch and Olaf Hellwich},
title={Prior Knowledge About Camera Motion for Outlier Removal in Feature Matching},
booktitle={Proceedings of the 10th International Conference on Computer Vision Theory and Applications - Volume 2: MMS-ER3D, (VISIGRAPP 2015)},
year={2015},
pages={603-610},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005456406030610},
isbn={978-989-758-090-1},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 10th International Conference on Computer Vision Theory and Applications - Volume 2: MMS-ER3D, (VISIGRAPP 2015)
TI - Prior Knowledge About Camera Motion for Outlier Removal in Feature Matching
SN - 978-989-758-090-1
AU - Stathopoulou E.
AU - Hänsch R.
AU - Hellwich O.
PY - 2015
SP - 603
EP - 610
DO - 10.5220/0005456406030610