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A new linear algorithm for calibrating central catadioptric cameras
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DOI：10.1016/j.patcog.2008.03.010.png)
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In this paper, a novel linear calibration algorithm based on lines is presented for central catadioptric cameras. We firstly derive the relationship between the projection on the viewing sphere of a space point and its catadioptric image. And then by the relationship we establish a group of linear constraints on the catadioptric parameters from the catadioptric projections of spatial lines. By using these linear constraints, any central catadioptric camera can be fully calibrated from a single view of three or more lines without prior knowledge on the camera. Extensive experiments show this algorithm can improve the calibration's robustness. (C) 2008 Elsevier Ltd. All rights reserved.
Keyword:
central catadioptric camera
calibration
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7.6
论文数:
1.3W
被引数:
4.5W
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