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Article
Image Edge Enhancement with Two Cascaded Acousto-Optic Cells with Contrapropagating Sound
Applied Optics
  • Dongqing Cao, University of Alabama, Huntsville
  • Partha P. Banerjee, University of Dayton
  • Ting-Chung Poon, Virginia Polytechnic Institute and State University
Document Type
Article
Publication Date
5-1-1998
Abstract
Basic real-time programmable image-processing operations are accomplished by use of acousto-optic (AO) cells. Instead of frequency-plane filters, the AO cells are placed directly behind the object. The one-dimensional edge-enhancement results with one AO cell can be improved by use of two AO cells that are placed in tandem with contrapropagating sound. The dominant second-derivative operation obtained from the transfer function of the undiffracted order works like a one-dimensional Laplacian operator that enables improved edge enhancement.
Inclusive pages
3007-3014
ISBN/ISSN
1559-128X
Comments

Permission documentation is on file.

Publisher
Optical Society of America
Peer Reviewed
Yes
Citation Information
Dongqing Cao, Partha P. Banerjee and Ting-Chung Poon. "Image Edge Enhancement with Two Cascaded Acousto-Optic Cells with Contrapropagating Sound" Applied Optics Vol. 37 Iss. 14 (1998)
Available at: http://works.bepress.com/partha_banerjee/60/