An interpolation method for strong barrel lens distortion

We propose an interpolation method considering strong barrel distortion of a fisheye lens using nearest pixels on a corrected image. The correction of barrel distortion comprises coordinate transformation and interpolation, and this paper focuses on interpolation. The proposed interpolation method u...

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Bibliographic Details
Published in:The Visual computer 2018-11, Vol.34 (11), p.1479-1491
Main Authors: Choi, Changwon, Lee, Hyungkeun, Yi, Joonhwan
Format: Article
Language:English
Subjects:
Artificial Intelligence
Computer Graphics
Computer Science
Coordinate transformations
Distortion
Image Processing and Computer Vision
Interpolation
Lenses
Lookup tables
Mathematical models
Methods
Original Article
Sensors
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Summary:We propose an interpolation method considering strong barrel distortion of a fisheye lens using nearest pixels on a corrected image. The correction of barrel distortion comprises coordinate transformation and interpolation, and this paper focuses on interpolation. The proposed interpolation method uses nearest coordinates on a corrected image rather than on a distorted image, unlike existing techniques. The increased computational complexity of the proposed interpolation method is alleviated by using look-up table (LUT)-based optimization. Experimental results show that both subjective and objective image qualities are improved with marginal execution time.
ISSN:0178-2789
1432-2315
DOI:10.1007/s00371-017-1414-5