Contactless Infrared Biometric Authentication for Anti-Forgery Access
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Solution Overview
Problem
Traditional biometric authentication methods require physical contact and are susceptible to forgery, particularly with fingerprint-based systems, which are sensitive to environmental conditions and can be easily replicated.
Innovation Solution
A contactless biometric authentication system using infrared or near-infrared sensors to capture images of a user's face or palm, extracting unique biometric features such as venous patterns for verification, allowing registration and authentication without physical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fingerprint-based authentication is used, then authentication capability is provided, but physical contact is required which limits throughput
Solution Approach 1:
The patent replaces the mechanical contact-based fingerprint scanning system with an optical imaging system using visible light, infrared, or near-infrared sensors to capture images of body parts (fingers, palms, faces) without physical contact. This substitution eliminates the need for users to press their fingers against the device, thereby removing the throughput limitation caused by sequential contact authentication while maintaining biometric verification capability.
2Reliability
If fingerprint-based authentication is used, then authentication is provided, but the system is sensitive to environmental conditions such as deposit or smear
Solution Approach 1:
The patent changes the imaging parameters by using infrared or near-infrared wavelengths instead of visible light. These infrared wavelengths can penetrate through superficial contaminants like deposits or smears on the skin surface, allowing the sensor to capture clear images of underlying biometric features (fingerprints, palm prints, or facial features) without being affected by environmental contaminants that would normally degrade image quality.
3Reliability
If fingerprint-based authentication is used, then authentication capability is provided, but the system is vulnerable to forgery
Solution Approach 1:
The patent transitions from two-dimensional fingerprint surface patterns to three-dimensional imaging that can capture depth information, venous patterns, or other subsurface biometric features using infrared or near-infrared sensors. This dimensional enhancement makes authentication more resistant to forgery because creating realistic 3D biometric replicas or subsurface patterns is significantly more difficult than forging 2D fingerprint images.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances security by making it harder to forge and provides reliable access control through contactless image capture of biometric features, improving throughput and reducing environmental sensitivity.
Implementation Method 1
activating, upon detecting of the motion, an infrared or near infrared sensor for capturing an image of a body part
Implementation Method 2
detecting a motion via a light sensitive sensor within a field of view of the light sensitive sensor
Data Source
AI summary
The present teaching relates to user authentication. Upon a light sensitive sensor detects a motion, an infrared or near infrared sensor may be activated for capturing an image of a body part of a person appearing nearby. The body part may be positioned in a contactless manner with respect to the infrared or near infrared sensor. The image of the body part may be acquired via the infrared or near infrared sensor. Via processing of the image, it may be determined whether the body part being imaged represents an anticipated body part for authentication. If the body part being imaged is determined to be an anticipated body part for authentication, biometric features of the body part may be extracted from the image. Via the extracted biometric features of the body part, it may be verified whether the person corresponds to one of one or more authorized users previously registered.