Remote optical ID tag recognition and verification using fully spatial phase multiplexing

Elisabet Pérez-Cabré; María Sagrario Millán; Bahram Javidi

doi:10.1117/12.630427

26 October 2005 Remote optical ID tag recognition and verification using fully spatial phase multiplexing

Elisabet Pérez-Cabré, María Sagrario Millán, Bahram Javidi

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Proceedings Volume 5986, Unmanned/Unattended Sensors and Sensor Networks II; 598602 (2005) https://doi.org/10.1117/12.630427
Event: European Symposium on Optics and Photonics for Defence and Security, 2005, Bruges, Belgium

Abstract

In this paper, we present a novel technique for automated remote optical ID tag recognition and verification. The design of distortion-invariant ID tags aims to achieve a correct object authentication even if the ID tag is detected and captured at different distances (i.e. scale variance) or from different views (i.e. rotation variance). Information included in the ID tag is encrypted in order to increase security. We use a fully phase encoded primary pattern and keys by spatial phase multiplexing. This encryption technique is compared with the amplitude-based encoding used in previous works. Experimental results and analysis are presented.

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Elisabet Pérez-Cabré, María Sagrario Millán, and Bahram Javidi "Remote optical ID tag recognition and verification using fully spatial phase multiplexing", Proc. SPIE 5986, Unmanned/Unattended Sensors and Sensor Networks II, 598602 (26 October 2005); https://doi.org/10.1117/12.630427

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