Options
Extraction of inplane displacement from sandwich holograms using speckle photography
Date Issued
01-09-1982
Author(s)
Sharma, D. K.
Sirohi, R. S.
Kothiyal, M. P.
Abstract
It is shown that the speckle fields corresponding to the two states of the object recorded on the individual plates of a sandwich hologram can be used to yield information about the in-plane displacement undergone by the object. A double exposure specklegram is recorded from the sequential reconstructions of individual holograms constituting the sandwich. Since the 3-D speckle fields are recirded on the holograms, it should be possible to obtain speckle fringes by focussing on any area of interest on a three dimensional object. This will eliminate errors due to defocussing. © 1982.
Volume
43