Conference article

Visualizing Single-Camera Reprojection Errors using Diffusion

Zlatko Franjcic
Qualisys AB, Gothenburg, Sweden / t2i Lab, Chalmers University of Technology, Sweden

Morten Feld
t2i Lab, Chalmers University of Technology, Sweden

Download article

Published in: Proceedings of SIGRAD 2015, June 1st and 2nd, Stockholm, Sweden

Linköping Electronic Conference Proceedings 120:5, p. 17-19

Show more +

Published: 2015-11-24

ISBN: 978-91-7685-855-4

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

This paper reports on early-stage research into using dynamic scale-space representation of image point reprojection error data obtained during calibration of a single camera. In particular, we employ time-dependent simulation of the heat equation, diffusing the point reprojection errors over the entire image plane. Initial experiments show the expected effect of an originally large number of point reprojection error measurements being coalesced into a smaller number of relatively larger regions. We round off the paper by presenting ongoing work aiming to exploit the time-progression of simulations to convey further information and thereby assisting manual visual analysis.

Keywords

Image point reprojection; error measurements; heat equation

References

[BK10] BRONSTEIN M. M., KOKKINOS I.: Scale-invariant heat kernel signatures for non-rigid shape recognition. In Computer Vision and Pattern Recognition (CVPR), 2010 IEEE Conference on (2010), IEEE, pp. 1704–1711. 3

[JMF99] JAIN A. K., MURTY M. N., FLYNN P. J.: Data clustering: a review. ACM computing surveys (CSUR) 31, 3 (1999), 264–323. 2

[Jol05] JOLLIFFE I.: Principal component analysis. Wiley Online Library, 2005. 2

[Lin93] LINDEBERG T.: Scale-space theory in computer vision. Springer, 1993. 1, 2

[MDWL14] MOLIN J., DEVAN K. S., WÅRDELL K., LUNDSTRÖM C.: Feature-enhancing zoom to facilitate ki-67 hot spot detection. In SPIE Medical Imaging (2014), International Society for Optics and Photonics, pp. 90410W–90410W. 1

[WF09] WILKINSON L., FRIENDLY M.: The history of the cluster heat map. The American Statistician 63, 2 (2009). 2

[Zha00] ZHANG Z.: A flexible new technique for camera calibration. Pattern Analysis and Machine Intelligence, IEEE Transactions on 22, 11 (2000), 1330–1334. 1, 2

Citations in Crossref