Holographic method with numerical reconstruction for...

Details Holographic method with numerical reconstruction for... Holographic method with numerical reconstruction for...

2007-05-22

2007-05-22

Assaf, Fayez G. (Department: 2872)

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

C359S900000, C359S032000

Reexamination Certificate

active

11371010

ABSTRACT:
A holographic method with numerical reconstruction for obtaining an image of a three-dimensional object, employs a digitalized hologram of an object or of a portion thereof, and includes starting from the digitalized hologram, extracting a phase image of the object corresponding to a matrix MD of distance values, selecting a subassembly SD of the distance value assembly present in matrix MD, subassembly SD containing distance values dk, extracting from matrix MD an iso-level assembly IQdkof corresponding bidimensional coordinate of the object; reconstructing, for each distance value dk, a bidimensional matrix IMdkof intensity values relevant to the object; extracting, from each bidimensional matrix IMdk, a bidimensional IFdkof intensity values; and starting from the intensity values, reconstructing the three-dimensional intensity image of the object.

REFERENCES:
patent: 2005/0122549 (2005-06-01), Goulanian et al.
patent: 2006/0164703 (2006-07-01), Coppola et al.
Schnars Et Al: “Digital recording and numerical reconstruction of holograms”, Measurment Science and Technology, IOP Publishing, Bristol, GB, vol. 13, No. 9, Sep. 2002.

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