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ON THE CALIBRATION OF UNDERWATER CAMERAS
Author(s) -
Fryer J. G.,
Fraser C. S.
Publication year - 1986
Publication title -
the photogrammetric record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.638
H-Index - 51
eISSN - 1477-9730
pISSN - 0031-868X
DOI - 10.1111/j.1477-9730.1986.tb00539.x
Subject(s) - underwater , calibration , camera resectioning , lens (geology) , distortion (music) , optics , submarine , camera lens , artificial intelligence , remote sensing , computer vision , computer science , physics , geology , geography , telecommunications , archaeology , amplifier , bandwidth (computing) , quantum mechanics
Analytical plumbline and serf calibration techniques are applied to the calibration of two underwater cameras: a Rolleifex SLX réseau camera with an Aquamarin WKD‐SLX/6006 submarine housing and a Nikonos V underwater camera. The Rolleiflex was fitted with a 50 mm Distagon f/4 lens and the Nikonos with a 28 mm Nikkor‐UW f/3.5 lens. Comparisons of the results from the two methods of camera calibration are described. Theoretical differences are predicted for in‐air versus in‐water values for radial distortion. When these are compared to the actually observed values of distortion, an insight is provided of the precisions claimed for each method of camera calibration.