Multi-optical spectrum image collecting device and method

Abstract

The invention discloses a device for collecting a multispectral image and a method thereof. The device at least comprises an infrared sensor (1), a device cover (2), ground glass (4), a multispectral light source circuit (5), a device transverse plate (6), a CCD camera (7), a power circuit (8) and a singlechip controlling circuit (9). Under a multi-spectral condition, the device and the method adopt active light of a single band and / or combined band of 400nm to 1,060nm to illuminate a palm to realize image shoot; and a light source is adjusted through a computer soft control method to realize high-quality image acquisition, display and storage. The utilization device and the method are used for obtaining high-quality palm images under the multi-spectral condition, and information including a palm print, a finger print, a palm vein and the like, thus solving problems of in vivo detection and improving the accuracy and safety of a palm biometrics identification system.

Description

technical field [0001] The present invention relates to the fields of biometric identification, optical technology, electronic circuit technology, etc., and in particular to the detection and acquisition technology of objects to be collected (such as palms, backs of hands, wrists, and skins in other parts of the body), providing biometric identification, computer vision and graphics, A new information acquisition device is provided in fields such as medical cosmetology. Background technique [0002] Biometric identification technology is used for automatic identification of individual identities by acquiring and analyzing the physiological and behavioral characteristics of the human body. Driven by broad application prospects, biometric recognition has become a hot research topic in the fields of pattern recognition, image processing, and computer vision. develop. At the same time, biometric identification is an application technology oriented to the strategic needs of the...

AI Technical Summary

Problems solved by technology

Vein recognition, as an international cutting-edge biometric technology, is becoming a hot spot in scientific research, but now many scholars pay more attention to the research on the veins on the back of the hand, and the acquisition method of vein images is mainly near-infrared thermal imaging. It is easily disturbed by the environment, such as temperature, humidity, etc., and the quality of the collected images is difficult to meet the requirements of biometric identification

[0006] A single palmprint and fingerprint recognition technology cannot well solve the difficulty of liveness detection in the recognition process, it is easy to be stolen and forged, and the security is not high

Vein recognition can help solve live detection, but the commonly used thermal infrared imaging technology often cannot obtain high-quality images when shooting palms, so it is difficult to use for recognition

Furthermore, adopting a single modality is susceptible to intra-class variation, causing a rapid decline in recognition rate

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