An artifact-metrics which utilizes laser speckle patterns for plastic ID card surface

Yamakoshi, Manabu; Rong, Xiaoying; Matsumoto, Tsutomu

doi:10.1117/12.842237

Cited by 8 publications

(4 citation statements)

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“…Artifact-metrics is defined as "the technology used to authenticate the artifact making use of the peculiarities of such an artifact" [4]. While physical and/or behavioral peculiarities of a person are the criteria for authentication in biometrics, the characteristics (peculiarity information) that are incidentally created during production of the artifact are the criteria for the artifact.…”

Section: A What Artifact-metrics Mean?mentioning

confidence: 99%

A Study of Applying Artifact-Metrics Technology and Baking Invisible Information onto Valuable Porcelain Products

Fujikawa¹,

Fuchi²

2015

IJMMM

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Abstract-In this paper, we propose a new method in order to verify the authenticity of porcelain product much easier by using artifact-metrics technology. In our method, counterfeiter cannot make copied product even if they could use same materials and tools which were used by the brand holder company or the ceramic artists. This method uses transparent glass phosphor powder to apply characteristic information on the surface of each product during glazing or/and painting on daily production, so that color tone created in the furnace is not affected. Our method requires no additional work for master artisan and no sophisticated skills for buyer. Besides, glass phosphor has no potential hazards to the human body and environment. In this paper, we indicate high feasibility of our method by showing results of some experiments. We also try to burn invisible information (QR code) onto the surface of each porcelain product.Index Terms-Artifact-metrics, authenticity, glass phosphor, information hiding, near infrared rays, porcelain product, spectral imaging.

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Section: A What Artifact-metrics Mean?mentioning

confidence: 99%

A Study of Applying Artifact-Metrics Technology and Baking Invisible Information onto Valuable Porcelain Products

Fujikawa¹,

Fuchi²

2015

IJMMM

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“…Many artifacts have such a random structure and, hence, laser speckles can be used in optical authentication systems. [1][2][3][4][5][6] Speckles as an authentication key have an advantage in that the relationship between the three-dimensional microscopic structure of an object and a speckle pattern that it produces is hard to model mathematically.…”

Section: Introductionmentioning

confidence: 99%

Optimal sampling and quantization of dynamic speckles for object identification

Okamoto

Mizobe

2010

SPIE Proceedings

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An authentication method using dynamic laser speckle has been investigated to identify scattering objects such as papers or plastic cards. The effects of sampling and quantization of speckle signals on identification performance are examined by using the equal error rate (EER) as a measure of the accuracy of object identification. It is found that a sampling interval of more than the correlation length of speckle fluctuations and a quantization of two or three bits give the lowest EER for data sizes ranging from 100 to 500 bytes.

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“…We developed a technique in order to verify the authenticity of ceramic products mechanically and to enhance the dif iculty of counterfeiting genuine products, based on a concept called artifact metrics [5,6,7,8]. In our previous study [9], we focused on a transparent glass phosphor which exhibited a one-peak emission wavelength in the near infrared wavelength band by optical excitation [10,11,12,13].…”

Section: Introduction a Background And Targetmentioning

confidence: 99%

Anti-copy and authenticity verification method for ceramic products: Development of new glass phosphor with two optical features

2018

J. adv. tec. eng. res.

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Multi-modal artifact metrics is an anti-counterfeiting technique, and was created based on the concept of multimodal biometrics. By this method, additives (functional materials) are added to the artifact during the manufacturing process in order to provide multiple feature information. Hence, the certainty of authenticity and dif iculty of counterfeiting could be enhanced. In order to provide two kinds of optical characteristic information (emission intensity and hue) into the artifact, we developed a new type of glass phosphor. This is a novel approach, since up-conversion phosphors with different hue and emission intensity by optical excitation at each observation point have never been reported. In this paper, we report the development of this glass phosphor, especially the production method and results of the fundamental experiments. The developed glass phosphor emitted as intended and demonstrated the validity of our approach.

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An artifact-metrics which utilizes laser speckle patterns for plastic ID card surface

Cited by 8 publications

References 0 publications

A Study of Applying Artifact-Metrics Technology and Baking Invisible Information onto Valuable Porcelain Products

A Study of Applying Artifact-Metrics Technology and Baking Invisible Information onto Valuable Porcelain Products

Optimal sampling and quantization of dynamic speckles for object identification

Anti-copy and authenticity verification method for ceramic products: Development of new glass phosphor with two optical features

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