Basic Image-Processing Operations by use of Acousto-OpticsApplied Optics
AbstractWe describe some basic optical image-processing operations with acousto-optic (AO) Bragg diffraction. Instead of using frequency-plane filters, we place an AO cell behind the object. We then realize experimentally one-dimensional edge enhancement, which utilizes a high-pass filtering effect in the undiffracted order from the AO cell. A numerical simulation compares well with the experimental results. With two AO cells oriented orthogonally to each other, a second-order mixed derivative operation, evident from the four-corner enhancement of a square, is also demonstrated.
CopyrightCopyright © 1997, Optical Society of America
PublisherOptical Society of America
Citation InformationPartha P. Banerjee, Dongqing Cao and Ting-Chung Poon. "Basic Image-Processing Operations by use of Acousto-Optics" Applied Optics Vol. 36 Iss. 14 (1997)
Available at: http://works.bepress.com/partha_banerjee/34/