Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1536129 | Optics Communications | 2012 | 5 Pages |
Abstract
A new APM computer-generated hologram algorithm for minimizing DC components and more effective data recovery is presented for the purpose of an ID tag application. In this method, a technique of randomization of the input data is introduced prior to the Fourier transform. As a result, DC components are localized at the center region, which is only 1 data cell, regardless of input data. The size of the tag pattern is reduced 2.25 times using a color encryption technique. Our experimental result through the image captured by a camera also shows that approximately 50% damaged APM-CGH tags can be reconstructed at a low error rate of about 1.8%.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Hyunhwan Choi, Ki-Mun Pak, Yong-Hyub Won,