Real-time extended dynamic range imaging in shearography
Applied Optics, Vol. 47, Issue 30, pp. 5550-5556 (2008)
http://dx.doi.org/10.1364/AO.47.005550
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Abstract
Extended dynamic range (EDR) imaging is a postprocessing technique commonly associated with photography. Multiple images of a scene are recorded by the camera using different shutter settings and are merged into a single higher dynamic range image. Speckle interferometry and holography techniques require a well-modulated intensity signal to extract the phase information, and of these techniques shearography is most sensitive to different object surface reflectivities as it uses self-referencing from a sheared image. In this paper the authors demonstrate real-time EDR imaging in shearography and present experimental results from a difficult surface reflectivity sample: a wooden panel painting containing gold and dark earth color paint.
© 2008 Optical Society of America
OCIS Codes
(100.2960) Image processing : Image analysis
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.6165) Instrumentation, measurement, and metrology : Speckle interferometry, metrology
ToC Category:
Instrumentation, Measurement, and Metrology
History
Original Manuscript: July 22, 2008
Revised Manuscript: September 12, 2008
Manuscript Accepted: September 15, 2008
Published: October 13, 2008
Citation
Roger M. Groves, Giancarlo Pedrini, and Wolfgang Osten, "Real-time extended dynamic range imaging in shearography," Appl. Opt. 47, 5550-5556 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-30-5550
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