Abstract
Advantages of the lensless Fourier holography setup for the
reconstruction of digitally recorded holograms in holographic
interferometry are presented. This very simple setup helps to
achieve a maximum lateral resolution of the object under
investigation. Also, the numerical-reconstruction algorithm is very
simple and fast to compute. A mathematical model based on Fourier
optics is used to describe discretization effects and to determine the
lateral resolution. The recording and the reconstruction processes
are regarded as an optical imaging system, and the point-spread
function is calculated. Results are verified by an experimental
setup for a combined shape and deformation measurement.
© 1999 Optical Society of America
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