Title :
Associative retrieval of holographic digital data
Author :
Kobras, S. ; Burr, G.W. ; Coufal, H. ; Abstreiter, G.
Author_Institution :
IBM Almaden Res. Center, San Jose, CA, USA
Abstract :
Summary form only given. One of the strengths of optical signal processing is the ability to rapidly perform two dimensional correlation of images. A template image is first presented on a spatial light modulator (SLM), Fourier transformed by a lens, and recorded as a hologram. Then, the input image to be compared is used to reconstruct the reference beam of the hologram, which is Fourier transformed by a second lens onto a detector camera. Matches between the input image and the template result in a bright output peak.
Keywords :
Fourier transform optics; holographic storage; lenses; optical correlation; spatial light modulators; Fourier transformed; associative holographic digital data retreival; bright output peak; detector camera; hologram; input image; lens; optical signal processing; reference beam reconstruction; spatial light modulator; template image; Costs; Graphics; Holographic optical components; Holography; Information retrieval; Lenses; Memory; Optical filters; Optical modulation; Optical polymers;
Conference_Titel :
Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-339-0
DOI :
10.1109/CLEO.1998.676408
