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

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Ingår i: Proceedings of SIGRAD 2015, June 1st and 2nd, Stockholm, Sweden

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

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Publicerad: 2015-11-24

ISBN: 978-91-7685-855-4

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


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.


Image point reprojection; error measurements; heat equation


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