Finger tissue model and blood perfused skin tissue phantom

Tuchin, Valery V.; Bashkatov, Alexey N.; Genina, Elina A.; Kochubey, Vyacheslav I.; Лычагов, В. В.; Портнов, С. А.; Trunina, N. A.; Miller, David R.; Cho, S.; Oh, Hee‐Mock; Shim, Bongchu; Kim, M.; Oh, Jeankun; Eum, Hyejin; Ku, Yunhee; Kim, D.; Yang, Yongju

doi:10.1117/12.881604

Cited by 35 publications

(35 citation statements)

References 19 publications

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“…In the biomedical domain, for instance, such objects (called phantoms) are used for calibrating and testing optical measurement profiles of sensing instrumentation [3], [4]. Similarly, targets ( Fig.…”

Section: Introductionmentioning

confidence: 99%

Design and Fabrication of 3D Fingerprint Targets

Arora

Cao

Jain

et al. 2016

IEEE Trans.Inform.Forensic Secur.

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Standard targets are typically used for structural (white-box) evaluation of fingerprint readers, e.g., for calibrating imaging components of a reader. However, there is no standard method for behavioral (black-box) evaluation of fingerprint readers in operational settings where variations in finger placement by the user are encountered. The goal of this research is to design and fabricate 3D targets for repeatable behavioral evaluation of fingerprint readers. 2D calibration patterns with known characteristics (e.g. sinusoidal gratings of pre-specified orientation and frequency, fingerprints with known singular points and minutiae) are projected onto a generic 3D finger surface to create electronic 3D targets. A state-of-the-art 3D printer (Stratasys Objet350 Connex) is used to fabricate wearable 3D targets with materials similar in hardness and elasticity to the human finger skin. The 3D printed targets are cleaned using 2M NaOH solution to obtain evaluation-ready 3D targets. Our experimental results show that (i) features present in the 2D calibration pattern are preserved during the creation of the electronic 3D target, (ii) features engraved on the electronic 3D target are preserved during the physical 3D target fabrication, and (iii) intra-class variability between multiple impressions of the physical 3D target is small. We also demonstrate that the generated 3D targets are suitable for behavioral evaluation of three different (500/1000 ppi) PIV/Appendix F certified optical fingerprint readers in the operational settings.Keywords-3D fingerprint targets, fingerprint reader evaluation, 2D calibration patterns, 3D printing, 2D pattern to 3D surface projection.

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Section: Introductionmentioning

confidence: 99%

Design and Fabrication of 3D Fingerprint Targets

Arora

Cao

Jain

et al. 2016

IEEE Trans.Inform.Forensic Secur.

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“…Although the nature of the mutilayers of skin cutis can not be simulated, like described in [2,10,14], the diameter of the generated vessels, that we pursued, is more close to that of a real vascular compared to the results from Refs. [12][13][14][15]. Further discussion goes onto investigating the geometry of the generated vessel structures.…”

Section: Optical Properties Compared With Ex-vivo Skin Tissuementioning

confidence: 79%

“…It is even practical to emboss vessel structures in multilayer phantoms to include biological / artificial solution [8,13]. As a typical example, a blood perfused finger phantom was prepared by folding glass tubes between layers to create an array of vessel structures [14]. J. T. Wang et al presented an additive production process to print a vessel pattern inside a phantom in their pioneer work [15].…”

Section: Introductionmentioning

confidence: 99%

“…J. T. Wang et al presented an additive production process to print a vessel pattern inside a phantom in their pioneer work [15]. These embossed structures lack of an exact dimensional analogy to the real microvascular according to the morphology of skin [13][14][15]. Fast prototyping of pattern on microfluidic chip is becoming a popular option to simulate the nature of superficial microvasculature and achieve a dimensional similarity [16].…”

Section: Introductionmentioning

confidence: 99%

“…However, experiments on multi-layer phantom [14], 3-D printed phantom [15] or microfluidic chip [16], are not easily duplicated in a few steps or without particular equipments. It means, they have an innate shortcoming of cumbersome to mass manufacture.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Preparation of a skin equivalent phantom with interior micron-scale vessel structures for optical imaging experiments

Chen

Klämpfl

Knipfer

et al. 2014

Biomed. Opt. Express

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Abstract:A popular alternative of preparing multilayer or microfluidic chip based phantoms could have helped to simulate the subsurface vascular network, but brought inevitable problems. In this work, we describe the preparation method of a single layer skin equivalent tissue phantom containing interior vessel channels, which mimick the superficial microvascular structure. The fabrication method does not disturb the optical properties of the turbiding matrix material. The diameter of the channels reaches a value of 50 µm. The size, as well as the geometry of the generated vessel structures are investigated by using the SD-OCT system. Our preliminary results confirm that fabrication of such a phantom is achievable and reproducible. Prospectively, this phantom is used to calibrate the optical angiographic imaging approaches.

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Miniaturized optical fingerprint scanner incorporating an integrated encoding plate

Lee

Baek

Lee

et al. 2017

Micro & Optical Tech Letters

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A compact optical fingerprint scanner (FPS) without a lens has been proposed and demonstrated using a plastic encoding plate that integrates an input and output routing mirror in conjunction with a platen. A beam originating from a vertical cavity surface emitting laser is projected toward the platen through the input routing mirror. Considering that the total internal reflection is inhibited at the ridges but takes place at the valleys, the projected beam can be spatially modulated by placing a fingerprint on the platen. The proposed FPS has been designed via ray‐optic simulations and was then constructed by creating an integrated encoding plate. The scanner could manifest the sweat glands of the ridges for an actual fingerprint.

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Finger tissue model and blood perfused skin tissue phantom

Cited by 35 publications

References 19 publications

Design and Fabrication of 3D Fingerprint Targets

Design and Fabrication of 3D Fingerprint Targets

Preparation of a skin equivalent phantom with interior micron-scale vessel structures for optical imaging experiments

Miniaturized optical fingerprint scanner incorporating an integrated encoding plate

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