&lt;title&gt;Optical pattern recognition for validation and security verification&lt;/title&gt;

Javidi, Bahram; Horner, Joseph L.

doi:10.1117/12.169427

Cited by 13 publications

(28 citation statements)

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“…Information security using optical technology is becoming increasingly important and has drawn a lot of attention, due to its inherent nature of high-speed and multidimensional capabilities of optical signal processing [1][2][3][4]. Since Refregier and Javidi proposed the double random phase encoding (DRPE) [5], optical technologies have been widely studied and applied for securing information.…”

Section: Introductionmentioning

confidence: 99%

Interference-based optical image encryption with silhouette removal by amplitude modulation

Yong

Quan

2017

J. Opt.

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Interference-based optical encryption schemes have an inherent silhouette problem, due to the equipollent nature of the phase-only masks generated from an analytical method. We propose a new interference-based optical image encryption with silhouette removal by amplitude modulation. Different from the previous methods, which require time-consuming iterative computation or post-processing of the phase-only masks for silhouette removal, the proposed method can resolve the problem by adding an amplitude modulating operation on the original image. The introduction of the amplitude modulator can significantly enhance the security of the system, and the silhouette problem inherent in a conventional interference-based encryption method is fully resolved. The design and parameter choice of the amplitude modulator is discussed. Numerical simulations are presented to verify the validity of the proposed method.

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Section: Introductionmentioning

confidence: 99%

Interference-based optical image encryption with silhouette removal by amplitude modulation

Yong

Quan

2017

J. Opt.

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“…Optical encryption of images has been an attractive research area over recent decades [1][2][3]. Most of the encryption methods use the double random phase encoding (DRPE) scheme [4], which consists of encoding the phase of the optical wave to generate random images.…”

Section: Introductionmentioning

confidence: 99%

Robustness against attacks of dual polarization encryption using the Stokes–Mueller formalism

Dubreuil

Alfalou

Brosseau

2012

J. Opt.

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The security of our recently proposed dual polarization encryption scheme of images is evaluated by numerical simulations. This consists of testing the resistance of the scheme against brute force, known-plaintext, chosen-plaintext and video sequence attacks. While some attacks are ineffective (brute force, video sequence) others are effective (known-plaintext, chosen-plaintext), but only under certain assumptions. An optimization of the setup, which is based on a regular rotation of polarization optics angles (polarizers, wave plates), is proposed associating the use of a high dynamic range for the key image, or the use of a phase-only spatial light modulator in the target and in the key image channel. The possibility of the attacker decrypting an unknown image is thus strongly reduced. The precision required for optical specifications is also evaluated, in order to ensure a good decryption for an authorized user.

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“…Optics provides useful resources for remote, real-time, automatic and reliable signal verification as it has been reported by a large number of papers published in the last decades. [1][2][3] Complex operations such as authenticator selection, signature encoding, encryption, identity tags, remote readout, decryption, hybrid processors, pattern recognition, resistance to degradations, identification, (multifactor) validation, and authentication are involved in the broad area of security systems. New methods have been reported for information encryption and designing identification (ID) tags for object surveillance or tracking.…”

Section: Introductionmentioning

confidence: 99%

Optical ID tags for automatic vehicle identification and authentication

2008

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We review the potential of optical techniques in security tasks and propose to combine some of them in the design of new optical ID tags for automatic vehicle identification and authentication. More specifically, we propose to combine visible and near infrared imaging, optical decryption, distortion-invariant ID tags, optoelectronic devices, coherent image processor, optical correlation, and multiple authenticators. A variety of images and signatures, including biometric and random sequences, can be combined in an optical ID tag for multifactor identification. Encryption of the information codified in the ID tag allows increasing security and deters from unauthorized usage of optical tags. A novel NIR ID tag is designed and built by using commonly available materials. The ID tag content cannot be visually perceived at naked eye; it cannot be copied, scanned, or captured by any conventional device. The identification process encompasses several steps such as detection, information decoding and verification which are all detailed in this work. Design of rotation and scale invariant ID tags is taken into account to achieve a correct authentication even if the ID tag is captured in different positions.

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<title>Optical pattern recognition for validation and security verification</title>

Cited by 13 publications

References 0 publications

Interference-based optical image encryption with silhouette removal by amplitude modulation

Interference-based optical image encryption with silhouette removal by amplitude modulation

Robustness against attacks of dual polarization encryption using the Stokes–Mueller formalism

Optical ID tags for automatic vehicle identification and authentication

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