Calibration of a Shack–Hartmann wavefront sensor as an orthographic camera
Optics Letters, Vol. 35, Issue 11, pp. 1762-1764 (2010)
http://dx.doi.org/10.1364/OL.35.001762
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Abstract
We demonstrate a method to calibrate a Shack–Hartmann sensor as an orthographic camera. This calibration method permits us to obtain the distance, the rotation matrix between the microlens array and CCD imaging planes, and the projection matrix, which models the projection of the incoming rays to the CCD imaging plane. The proposed calibration method introduces a very compact matrix notation and allows wavefront reconstruction without an explicit centroid search between the reference and distorted spot diagrams. We show a set of simulations in code V that prove the effectiveness of the proposed method.
© 2010 Optical Society of America
OCIS Codes
(100.5070) Image processing : Phase retrieval
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(150.1488) Machine vision : Calibration
ToC Category:
Image Processing
History
Original Manuscript: December 16, 2009
Revised Manuscript: April 16, 2010
Manuscript Accepted: April 19, 2010
Published: May 18, 2010
Citation
J. Vargas, L. González-Fernandez, J. Antonio Quiroga, and T. Belenguer, "Calibration of a Shack–Hartmann wavefront sensor as an orthographic camera," Opt. Lett. 35, 1762-1764 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-11-1762
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