22 October 1993 Performance of charge-coupled devices in digital shearography
Author Affiliations +
Proceedings Volume 2066, Industrial Optical Sensing and Metrology: Applications and Integration; (1993); doi: 10.1117/12.162108
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States
The use of charge-coupled devices (CCDs) for imaging in digital shearography necessitates the knowledge of their electronic (signal-independent) noise level, as the visibility of fringes produced is dependent on this factor. A method based on measuring the experimental CCD noise variance to construct a linear equation system is presented. From the solution of this equation system, the electronic noise level of a particular CCD used for imaging can be determined. Evaluation of CCDs based on this noise factor allows the performance of each CCD used in digital shearography to be compared.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tuck Wah Ng, Fook Siong Chau, "Performance of charge-coupled devices in digital shearography", Proc. SPIE 2066, Industrial Optical Sensing and Metrology: Applications and Integration, (22 October 1993); doi: 10.1117/12.162108; https://doi.org/10.1117/12.162108

Charge-coupled devices


Imaging systems

Interference (communication)

Signal to noise ratio



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