Paper
31 July 1989 Vibration Measurements Using Dual Reference Beam Holography
D. P. Towers, T. R. Judge, P. J. Bryanston-Cross
Author Affiliations +
Proceedings Volume 1084, Stress and Vibration: Recent Developments in Industrial Measurement and Analysis; (1989) https://doi.org/10.1117/12.952921
Event: Sira/Stress and Vibration: Recent Developments in Measurement and Analysis, 1989, London, United Kingdom
Abstract
A new method for extracting quantitative information from a double exposure holographic interferogram is presented. Dual reference beams are used to produce continuously variable phase differences between the two images of the object at the recording stage of the hologram. Image reconstruction at three known phase differences via a CCD camera and digital framestore allow automatic image processing methods to calculate the three dimensional surface deformation.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. P. Towers, T. R. Judge, and P. J. Bryanston-Cross "Vibration Measurements Using Dual Reference Beam Holography", Proc. SPIE 1084, Stress and Vibration: Recent Developments in Industrial Measurement and Analysis, (31 July 1989); https://doi.org/10.1117/12.952921
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CITATIONS
Cited by 2 scholarly publications.
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KEYWORDS
Image processing

Industrial metrology

Holography

Holograms

Statistical analysis

Beam splitters

3D image reconstruction

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