Digital Double-pulsed Holographic Interferometry for Vibration Analysis

Information reduction using lensless Fourier transform digital composite holography

“…To make recording, reconstruction and processing of the acquired data fast, reliable and real-time, various ideas executed in conventional holography are gradually being used in digital holography. Consequently, there have been many publications [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] in digital holographic metrology and microscopy recently.…”

Contouring of diffused objects by using digital holography

“…The optical system is simple as imaging lens is not required. The holograms of the two states of the object recorded electronically and stored in digital image processing systems in computers can be processed in two ways, first the two holograms can be superimposed and reconstruction leads to an interferogram like conventional double exposure holographic interferometry [18][19][20][21][22][23][24][25], second the phases of each individual object state are reconstructed and the interference phase can be calculated directly [26].…”

Comparison of numerical image reconstruction methods in holography

“…The survey of the first line of (6) shows that similarly the Fresnel transformation is a convolution, with the following impulse response:…”

“…It would violate the field invariant, which is a necessary condition for the validity of the convolution theorem. Thus, the impulse response's application shifts the reconstructed field with (s k ∆ξ, s l ∆η) vector [6].…”