Abstract
We describe an incoherent image processor that uses orthogonally oriented one-dimensional acousto-optic cells to implement dynamic, arbitrary bipolar point-spread functions (PSF’s). Arbitrary PSF’s are implemented as a linear superposition in time of separable PSF’s. The use of incoherent illumination increases the input field of view over that provided by coherent illumination, and implementation of the PSF by a pupil-plane filter yields a simple, compact single-lens imaging system. The acousto-optic cells offer a faster PSF update rate than that of conventional spatial light modulators, which is a critical issue for the implementation of a bipolar PSF as a subtraction between its positive and rectified negative parts. Initial experimental results are presented that demonstrate the realization of an arbitrary nonseparable PSF, image convolution with a bipolar PSF, two-dimensional image correlation, and an increased processor field of view.
© 1995 Optical Society of America
Full Article | PDF ArticleMore Like This
Joseph N. Mait, Dennis W. Prather, and Ravindra A. Athale
Appl. Opt. 31(26) 5688-5699 (1992)
Vladimir I. Balakshy and Dmitry E. Kostyuk
Appl. Opt. 48(7) C24-C32 (2009)
Joseph N. Mait
J. Opt. Soc. Am. A 4(7) 1185-1193 (1987)