Enhancement of Infra-Red Images of Human Hand

Pillai, A.; Mil’shtein, S.

doi:10.5923/j.ajbe.20110101.10

Cited by 3 publications

(2 citation statements)

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“…According to the data taken from literature, biological tissues are transparent in the infrared range of optical spectrum (Pillai & Mil'shtein, 2011). Based on our recent experiments, the maximum attenuation of IR light occurs in the 900-1050 nm range of spectrum, whereas the maximum penetration lies in the 800-880 nm range of spectrum.…”

Section: Methodsmentioning

confidence: 99%

Possibility of using near infrared irradiation for early cancer diagnosis

Partsvania

Petriashvili

Fonjavidze

2013

Electromagnetic Biology and Medicine

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Penetration of near infrared radiation (NIR) through biological tissues (human wrist, muscle and skin of hen, muscle of mollusk) was studied. The possibilities of visualizing various objects within biological tissues were examined. It is found that: (a) it is possible to see small objects with millimeter and sub-millimeter dimensions; and (b) by using NIR rays it is possible to distinguish different parts of small homogeneous biological tissues. NIR can be a possible tool in the near future to visualize millimeter size cancerous outgrowths located inside human body cavities. It will enable diagnosis of cancer at an early stage of development.

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Section: Methodsmentioning

confidence: 99%

Possibility of using near infrared irradiation for early cancer diagnosis

Partsvania

Petriashvili

Fonjavidze

2013

Electromagnetic Biology and Medicine

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“…Using two sources of near-infrared (NIR), 970 nm wavelength, which is well absorbed by human hand [24], we changed the positions of light sources and the position of the light detector. Fig.…”

Section: Mobile Hardware For Contactless Multi-mode Biometric Identifmentioning

confidence: 99%

Multi-Mode Biometrics for Law Enforcement Operations

Mil’shtein¹,

Zinaddinov²

2019

World Congress on Electrical Engineering and Computer Systems and Science

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Fingerprinting is the most extensively used biometrics supported by biggest database compared to other biometrics, such as retina imaging, face or voice recognition and others. However fingerprinting image could be distorted by pressure of the finger against the scanner, therefore needs to be contactless. Most important, distances between ridges on a finger depend on physical conditions (health) of an individual. That is when map of blood vessels in a finger is very helpful and supportive information. In addition, police criminal investigators do find some time not standalone fingerprint but images of few fingers or even image of a palm. In current study, we report a new design and test results of c o n t a c t l e s s line scan hardware, which produces images of single nail-to-nail finger, four fingers together, and image of human palm. The major focus of the study is development of high-resolution images of blood vessels and the new algorithm based on linear filtering neighborhood analysis, which generates a well-defined and interconnected blood vessel map. The new position of I R light sources provides a good and mostly uniform contrast between the veins and surrounding tissues. This configuration is different from the conventional positioning, where all three objects are aligned along vertical axis, that is, the source of light positioned above the tested finger, and the camera is located below the finger. The new experimental imaging configuration and blood vessel tracking algorithm could be combined with contactless fingerprinting to reinforce biometric personal identification.

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