title: Application of a wire-grid-mirror liquid-crystal light valve in a nonlinear joint transform correlator.
abstract: We describe the operation of a wire-grid-mirror liquid-crystal light valve and its use for optical pattern recognition. The nonlinear characteristic of the wire-grid-mirror liquid-crystal light valve is used to implement the nonlinear joint transform correlator. Experimental results and computer simulations show that the nonlinear characteristic of the wire-grid-mirror liquid-crystal light valve can produce a well-defined correlation peak and low output background. The performance of the nonlinear joint transform correlator obtained when the wire-grid-mirror liquid-crystal light valve is used is compared with that of the binary joint transform correlator.
authors.forename: B
authors.initials: B
authors.lastname: Javidi
authors.forename: G
authors.initials: G
authors.lastname: Zhang
authors.forename: A H
authors.initials: AH
authors.lastname: Faziollahi
authors.forename: U
authors.initials: U
authors.lastname: Efron