title: Multispectral size-averaged incoherent spatial filtering.
abstract: A method of 2-D size-averaged incoherent recognition filtering is described. White light input illumination is used to multiplex chromatically a continuum of inputs differing in their spatial Fourier spectral magnifications. A two-grating dichromated-gelatin lateral-dispersion compensating device is inserted to correct chromatic dispersion introduced by a computer-generated hologram filter. The resulting registered recognition patterns are added to form a single effective filter size-averaged recognition peak. Using high efficiency compensating gratings and a bleached binary hologram allow the use of a relatively low-power light source.
authors.forename: S P
authors.initials: SP
authors.lastname: Almeida
authors.forename: S K
authors.initials: SK
authors.lastname: Case
authors.forename: W J
authors.initials: WJ
authors.lastname: Dallas