Open AccessCompressive holographic two-dimensional localization with 1/30^2 subpixel accuracy
Author(s) -
Yi Liu,
Lei Tian,
Chih-Hung Hsieh,
George Barbastathis
Publication year - 2014
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.009774
Subject(s) - subpixel rendering , optics , digital holography , holography , computer vision , pixel , fourier transform , enhanced data rates for gsm evolution , computer science , artificial intelligence , ground truth , iterative reconstruction , physics , quantum mechanics
We propose the use of compressive holography for two-dimensional (2D) subpixel motion localization. Our approach is based on computational implementation of edge-extraction using a Fourier-plane spiral phase mask, followed by compressive reconstruction of the edge of the object. Using this technique and relatively low-cost computer and piezo motion stage to establish ground truth for the motion, we demonstrated localization within 1/30th of a camera pixel in each linear dimension.