Basic Image-Processing Operations by use of Acousto-Optics
We 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.
Copyright © 1997, Optical Society of America
Optical Society of America
Banerjee, Partha P.; Cao, Dongqing; and Poon, Ting-Chung, "Basic Image-Processing Operations by use of Acousto-Optics" (1997). Electrical and Computer Engineering Faculty Publications. 231.