A novel camera calibration method for fish-eye lenses using line features
In this paper, a novel method for the fish-eye lens calibration is presented. The method required only a 2D calibration plane containing straight lines i.e., checker board pattern without a priori knowing the poses of camera with respect to the calibration plane. The image of a line obtained from fi...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2014-08-01
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| Series: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-3/327/2014/isprsarchives-XL-3-327-2014.pdf |
| Summary: | In this paper, a novel method for the fish-eye lens calibration is presented. The method required only a 2D calibration plane containing
straight lines i.e., checker board pattern without a priori knowing the poses of camera with respect to the calibration plane. The image of
a line obtained from fish-eye lenses is a conic section. The proposed calibration method uses raw edges, which are pixels of the image
line segments, in stead of using curves obtained from fitting conic to image edges. Using raw edges is more flexible and reliable than
using conic section because the result from conic fitting can be unstable. The camera model used in this work is radially symmetric
model i.e., bivariate non-linear function. However, this approach can use other single view point camera models. The geometric
constraint used for calibrating the camera is based on the coincidence between point and line on calibration plane. The performance of
the proposed calibration algorithm was assessed using simulated and real data. |
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| ISSN: | 1682-1750 2194-9034 |