Open AccessThree-dimensional optical correlator using a sub-image array
Author(s) -
JaeHyeung Park,
Joohwan Kim,
Byoungho Lee
Publication year - 2005
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.005116
Subject(s) - optical correlator , optics , integral imaging , lens (geology) , image processing , image plane , spatial frequency , optical correlation , physics , computer science , image (mathematics) , fourier transform , computer vision , quantum mechanics
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.