Dynamic Fingerprint Verification via Finger Trajectory Capture
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Solution Overview
Problem
Traditional biometric fingerprint verification systems are vulnerable to security risks as static fingerprint images can be compromised, allowing unauthorized access if leaked, and do not provide user privacy since fingerprints are unchangeable.
Innovation Solution
A method and device that generate and compare dynamic fingerprints by capturing fingerprint images while the user moves their finger along a trajectory, creating a composite image that is harder to forge, thereby enhancing security by making each verification unique to the movement path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static fingerprint images are used for verification, then the verification process is simple and fast, but the security is compromised as leaked fingerprints can be forged for unauthorized access
Solution Approach 1:
The patent transforms static fingerprint verification into dynamic verification by capturing fingerprint images during finger movement along a trajectory. The system records multiple fingerprint images at different positions and combines them into a dynamic fingerprint template, making the verification process security-resistant while maintaining operational simplicity.
Solution Approach 2:
The patent adds temporal and spatial dimensions to fingerprint verification by incorporating the trajectory of finger movement. Instead of verifying a single static image, the system verifies the dynamic pattern formed by multiple images along a path, creating a higher-dimensional verification space that is resistant to forgery.
2Reliability
If static fingerprints are stored as references, then the storage and comparison process is efficient, but user privacy is compromised since fingerprints are unchangeable and can be leaked
Solution Approach 1:
The patent changes the fundamental parameter of fingerprint representation from static to dynamic. By capturing fingerprints during movement and combining multiple images into a dynamic template, the system creates a more secure reference that reflects natural usage patterns, protecting user privacy while maintaining verification efficiency.
3Reliability
If dynamic fingerprints are generated by capturing images during finger movement, then security is improved by making forgery difficult, but the verification process becomes more complex
Solution Approach 1:
The patent segments the fingerprint verification process into distinct phases: capturing multiple images during finger movement, processing each image to extract features, combining images into a dynamic template, and comparing against stored references. This segmentation manages complexity by breaking down the dynamic verification process into manageable steps.
Solution Approach 2:
The patent introduces an intermediary processing stage that captures multiple fingerprint images during finger movement and combines them into a dynamic template. This intermediary step acts as a mediator between the raw capture process and the final verification comparison, simplifying the overall system architecture while enhancing security.
Data Source
AI summary
A method, a device, and computer-readable medium are provided for verifying an identity of a user, which pertains to computer technology. In some aspects, the method includes generating a dynamic fingerprint while the user moves a finger along a trajectory of movement in a fingerprint collection area of a fingerprint reader, and comparing the dynamic fingerprint with a referential fingerprint. The method also includes verifying the identity of the user based on the comparison, and generating a report indicating the identity verified.