Abstract
A new method in digital speckle pattern interferometry is in- troduced. It is a two-stage process. In the first stage, two states (un- loaded and loaded states) of the master object are recorded in a holo- graphic plate using the usual holographic arrangement. In the second stage, various phase stepping algorithms are applied, using the recon- structed wavefronts of the master object as a holographic optical ele- ment to produce reference wave fields in the comparison process. The method is investigated, and its viability is demonstrated by experimental results and computer simulations. © 1999 Society of Photo-Optical Instrumenta- tion Engineers. (S0091-3286(99)01507-X)
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