Please use this identifier to cite or link to this item: https://doi.org/10.1007/11612032_72
Title: Error characteristics of SFM with erroneous focal length
Authors: Cheong, L.-F. 
Xiang, X.
Issue Date: 2006
Source: Cheong, L.-F.,Xiang, X. (2006). Error characteristics of SFM with erroneous focal length. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 3851 LNCS : 714-723. ScholarBank@NUS Repository. https://doi.org/10.1007/11612032_72
Abstract: This paper presents a theoretical analysis of the behavior of "Structure from Motion" (SFM) algorithms with respect to the errors in intrinsic parameters of the camera. We demonstrate both analytically and in simulation how uncertainty in the calibration parameters gets propagated to motion estimates. We studied the behavior of the estimation of the focus of expansion (FOE) in the case that the camera is well calibrated except that the focal length is estimated with error. The results suggest that the behavior of the bas-relief ambiguity is affected by the erroneous focal length. The amount of influence depends on the relative direction of the translation and rotation parameters of the camera, the field of view and scene depth. Simulation with synthetic data was conducted to support our findings. © Springer-Verlag Berlin Heidelberg 2006.
Source Title: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
URI: http://scholarbank.nus.edu.sg/handle/10635/70199
ISBN: 3540312196
ISSN: 03029743
DOI: 10.1007/11612032_72
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