Use of Costas arrays in subpixel metrology

Abstract

Subpixel methods increase the accuracy and efficiency of image detectors, processing units, and algorithms and provide very cost-effective systems for object tracking. A recently proposed method permits micropixel and submicropixel accuracies providing certain design constraints on the target are met. In this paper, we explore the use of Costas arrays-permutation matrices with ideal auto-ambiguity properties-for the design of such targets. © 2014 SPIE.