High-quality vein image development system

Abstract

The invention discloses a high-quality hand back vein image development system and relates to the research fields of bio-feature identification, high-precision medical vein assisted injection and the like. By improving vein image collection quality, the problems of difficult vein image information-based identity authentication, difficult vein injection of partial disease patients due to fuzzy hand back veins, and the like are solved. The system mainly consists of a computer, a single-chip microcomputer, upper computer software, a near-infrared light source, an LED driving module, a near-infrared CCD camera, a specific-wavelength light filter, a camera fixing slot, a fixing ring, a support rod, a vein image shooting template, a palm placement template, a near-infrared light source placement box and a base. According to the system, the LED driving module is controlled to adjust the magnitude of a current through the single-chip microcomputer according to a corresponding relationship between a difference value of a parameter value of a hand back vein image and an empirical threshold preset according to statistics, and current intensity, so that the radiation intensity of a near-infrared LED is adjusted and the high-quality hand back vein image meeting the requirements is obtained.

Description

technical field [0001] The invention relates to a biometric image acquisition system and a high-quality vein image development system. Background technique [0002] Biometrics technology is a technology that uses the inherent physiological and behavioral characteristics of the human body to identify individuals through the close combination of computers and high-tech means such as optics, acoustics, biosensors, and biostatistics. With the rapid development of information technology and network technology, information security has shown unprecedented importance. Biometrics has the characteristics of being difficult to forge, not easy to lose, and easy to use, and has broad development prospects. [0003] Like fingerprints, vein patterns are unique to each person, but the probability of repeating hand veins is lower than that of fingerprints. Therefore, high-precision identity authentication can be performed by analyzing the characteristics of hand vein images. Vein recogniti...

AI Technical Summary

Problems solved by technology

[0005] The present invention is a high-quality vein image imaging system, which solves the difficulty of identity authentication based on vein image information caused by the low quality of vein image acquisition caused by the underlying vein image imaging principle under the near-infrared supplementary light system, and is aimed at the back of the hand of some disease patients. Difficulty with intravenous administration due to blurred veins

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