Convex image orientation from relative orientations

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Reich, M.; Heipke, C.: Convex image orientation from relative orientations. In: XXIII ISPRS Congress, Commission III 3 (2016), Nr. 3, S. 107-114. DOI: https://doi.org/10.5194/isprsannals-III-3-107-2016

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To cite the version in the repository, please use this identifier: https://doi.org/10.15488/1177

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Sum total of downloads: 110




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Abstract: 
In this paper we propose a novel workflow for the estimation of global image orientations given relative orientations between pairs of overlapping images. Our approach is convex and independent on initial values. First, global rotations are estimated in a relaxed semidefinite program (SDP) and refined in an iterative least squares adjustment in the tangent space of SO(3). A critical aspect is the handling of outliers in the relative orientations. We present a novel heuristic graph based approach for filtering the relative rotations that outperforms state-of-the-art robust rotation averaging algorithms. In a second part we make use of point-observations, tracked over a set of overlapping images and formulate a linear homogeneous system of equations to transfer the scale information between triplets of images, using estimated global rotations and relative translation directions. The final step consists of refining the orientation parameters in a robust bundle adjustment. The proposed approach handles outliers in the homologous points and relative orientations in every step of the processing chain. We demonstrate the robustness of the procedure on synthetic data. Moreover, the performance of our approach is illustrated on real world benchmark data.
License of this version: CC BY 3.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2016
Appears in Collections:Fakultät für Bauingenieurwesen und Geodäsie

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downloads by country:

pos. country downloads
total perc.
1 image of flag of Germany Germany 63 57.27%
2 image of flag of Russian Federation Russian Federation 7 6.36%
3 image of flag of China China 7 6.36%
4 image of flag of Canada Canada 5 4.55%
5 image of flag of United States United States 4 3.64%
6 image of flag of South Africa South Africa 3 2.73%
7 image of flag of Tanzania, United Republic of Tanzania, United Republic of 2 1.82%
8 image of flag of Indonesia Indonesia 2 1.82%
9 image of flag of Europe Europe 2 1.82%
10 image of flag of Estonia Estonia 2 1.82%
    other countries 13 11.82%

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