Unified piecewise epipolar resampling method for pushbroom satellite images

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Computational stereo is in the fields of computer vision and photogrammetry. In the computational stereo and surface reconstruction paradigms, it is very important to achieve appropriate epipolar constraints during the camera-modeling step of the stereo image processing. It has been shown that the epipolar geometry of linear pushbroom imagery has a hyperbola-like shape because of the non-coplanarity of the line of sight vectors. Several studies have been conducted to generate resampled epipolar image pairs from linear pushbroom satellites images; however, the currently prevailing methods are limited by their pixel scales, skewed axis angles, or disproportionality between x-parallax disparities and height. In this paper, a practical and unified piecewise epipolar resampling method is proposed to generate stereo image pairs with zero y-parallax, a square pixel scale, and proportionality between x-parallax disparity and height. Furthermore, four criteria are suggested for performance evaluations of the prevailing methods, and experimental results of the method are presented based on the suggested criteria. The proposed method is shown to be equal to or an improvement upon the prevailing methods.
Publisher
SPRINGER INTERNATIONAL PUBLISHING AG
Issue Date
2016-03
Language
English
Article Type
Article
Keywords

ARRAY SCANNER SCENES

Citation

EURASIP JOURNAL ON IMAGE AND VIDEO PROCESSING

ISSN
1687-5281
DOI
10.1186/s13640-016-0112-y
URI
http://hdl.handle.net/10203/222855
Appears in Collection
CS-Journal Papers(저널논문)
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