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Sensors 2016, 16(3), 412; doi:10.3390/s16030412

Comparison of Computer Vision and Photogrammetric Approaches for Epipolar Resampling of Image Sequence

Department of Geoinformatic Engineering, Inha University, 100 Inharo, Nam-gu Incheon 22212, Korea
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Author to whom correspondence should be addressed.
Academic Editor: Assefa M. Melesse
Received: 13 February 2016 / Revised: 15 March 2016 / Accepted: 16 March 2016 / Published: 22 March 2016
(This article belongs to the Section Remote Sensors)
View Full-Text   |   Download PDF [2339 KB, uploaded 22 March 2016]   |  

Abstract

Epipolar resampling is the procedure of eliminating vertical disparity between stereo images. Due to its importance, many methods have been developed in the computer vision and photogrammetry field. However, we argue that epipolar resampling of image sequences, instead of a single pair, has not been studied thoroughly. In this paper, we compare epipolar resampling methods developed in both fields for handling image sequences. Firstly we briefly review the uncalibrated and calibrated epipolar resampling methods developed in computer vision and photogrammetric epipolar resampling methods. While it is well known that epipolar resampling methods developed in computer vision and in photogrammetry are mathematically identical, we also point out differences in parameter estimation between them. Secondly, we tested representative resampling methods in both fields and performed an analysis. We showed that for epipolar resampling of a single image pair all uncalibrated and photogrammetric methods tested could be used. More importantly, we also showed that, for image sequences, all methods tested, except the photogrammetric Bayesian method, showed significant variations in epipolar resampling performance. Our results indicate that the Bayesian method is favorable for epipolar resampling of image sequences. View Full-Text
Keywords: epipolar resampling; image rectification; Bayesian approach; stereo image sequence epipolar resampling; image rectification; Bayesian approach; stereo image sequence
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Kim, J.-I.; Kim, T. Comparison of Computer Vision and Photogrammetric Approaches for Epipolar Resampling of Image Sequence. Sensors 2016, 16, 412.

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