Infrared image acquisition system for vein pattern analysis

R. Castro-Ortega; C. Toxqui-Quitl; A. Padilla-Vivanco; J. Solís-Villarreal

doi:10.1117/12.2238553

28 September 2016 Infrared image acquisition system for vein pattern analysis

R. Castro-Ortega; C. Toxqui-Quitl; A. Padilla-Vivanco; J. Solís-Villarreal

Author Affiliations +

Proceedings Volume 9947, Current Developments in Lens Design and Optical Engineering XVII; 99471I (2016) https://doi.org/10.1117/12.2238553
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

The physical shape of the hand vascular distribution contains useful information that can be used for identifying and authenticating purposes; which provide a high level of security as a biometric. Furthermore, this pattern can be used widely in health field such as venography and venipuncture. In this paper, we analyze different IR imaging systems in order to obtain high visibility images of the hand vein pattern. The images are acquired in the range of 400 nm to 1300 nm, using infrared and thermal cameras. For the first image acquisition system, we use a CCD camera and a light source with peak emission in the 880 nm obtaining the images by reflection. A second system consists only of a ThermaCAM P65 camera acquiring the naturally emanating infrared light from the hand. A method of digital image analysis is implemented using Contrast Limited Adaptive Histogram Equalization (CLAHE) to remove noise. Subsequently, adaptive thresholding and mathematical morphology operations are implemented to get the vein pattern distribution.

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R. Castro-Ortega, R. Castro-Ortega, C. Toxqui-Quitl, C. Toxqui-Quitl, A. Padilla-Vivanco, A. Padilla-Vivanco, J. Solís-Villarreal, J. Solís-Villarreal, } "Infrared image acquisition system for vein pattern analysis", Proc. SPIE 9947, Current Developments in Lens Design and Optical Engineering XVII, 99471I (28 September 2016); doi: 10.1117/12.2238553; https://doi.org/10.1117/12.2238553

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