Abstract

The continuous development of new authentication techniques is necessary to prevent illegal data access from unauthorized users or counterfeiting. In this paper, we present a simple optical method to decode encrypted images using a multi-scopic optical system. The method uses a scrambled lens-let array which provides a high level of security. In a simple configuration, the encrypted image is scrolled in front of the multi-scopic imaging system. Due to a particular arrangement of lens-lets, the image will only be correctly imaged at a unique position with respect to the imager. Experimental demonstrations are presented and potential applications discussed.

© 2020 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Optical security and authentication using nanoscale and thin-film structures

Artur Carnicer and Bahram Javidi
Adv. Opt. Photon. 9(2) 218-256 (2017)

Optical double-image encryption and authentication by sparse representation

Emad A. Mohammed and H. L. Saadon
Appl. Opt. 55(35) 9939-9944 (2016)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Supplementary Material (1)

NameDescription
» Visualization 1       On the video, you can first see the position where the symbol appears, then when the lens array is moved, the symbol immediately disappears and the image becomes noisy.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription