title: Optical system to compute intensity moments: design.
abstract: A frequency-multiplexed coherent optical processor is described that can compute the intensity moments of a gray-scale input image. The space-bandwidth product and dynamic range of the system's components are discussed. A major feature of the system is the ability to operate easily on its outputs to obtain bipolar moments and to correct for various component errors, nonlinearities, and nonuniformities.
authors.affiliation: Carnegie-Mellon University, Department of Electrical Engineering, Pittsburgh, Pennsylvania 15213, USA.
authors.forename: D
authors.initials: D
authors.lastname: Casasent
authors.forename: L
authors.initials: L
authors.lastname: Cheatham
authors.forename: D
authors.initials: D
authors.lastname: Fetterly