title: Three-dimensional optical correlator using a sub-image array.
abstract: A three-dimensional optical correlator using a lens array is proposed and demonstrated. The proposed method captures three-dimensional objects using the lens array and transforms them into sub-images. Through successive two-dimensional correlations between the sub-images, a three-dimensional optical correlation is accomplished. As a result, the proposed method is capable of detecting out-of-plane rotations of threedimensional objects as well as three-dimensional shifts.
authors.forename: Jae-Hyeung
authors.initials: JH
authors.lastname: Park
authors.forename: Joohwan
authors.initials: J
authors.lastname: Kim
authors.forename: Byoungho
authors.initials: B
authors.lastname: Lee