Multi-Person Biometric Graphic Verification Using 3D Face Matching
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Solution Overview
Problem
Existing biometric security methods, such as fingerprint and two-dimensional facial recognition, are unreliable and insecure on small electronic devices, making it difficult to securely verify user identity for account access, and users often prefer more convenient and reliable methods.
Innovation Solution
A mobile device-based face matching verification system that uses a camera to capture images from different angles and distances, utilizing movement sensors to detect facial biometrics, and incorporates multiple enrollment profiles, banding detection, and three-dimensional image analysis to enhance security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If two-dimensional facial matching is used for verification, then the system is easy to implement, but the security is insufficient because faces can be photographed or recorded and used to trick the system
Solution Approach 1:
The patent transitions from two-dimensional facial image matching to three-dimensional facial structure analysis. The system captures images from multiple angles and distances, then processes them to extract three-dimensional geometric information about facial features. This dimensional upgrade prevents spoofing attacks because photographs and video displays cannot provide accurate three-dimensional spatial relationships, thereby resolving the security vulnerability while maintaining implementation feasibility through software-based processing.
2Reliability
If fingerprint sensors are used for verification, then the security is improved, but the reliability is considered insufficient and the user experience is poor on small electronic devices
Solution Approach 1:
The patent replaces the mechanical contact-based fingerprint sensing system with an optical three-dimensional facial recognition system. Instead of requiring physical contact with a sensor surface, the system uses the device's camera to capture facial images from multiple angles and computes three-dimensional facial geometry through image processing. This substitution eliminates the poor user experience of fingerprint sensors on small devices while maintaining high security through three-dimensional verification that resists photograph-based attacks.
3Reliability
If multiple enrollment profiles with accessories are created, then the security is enhanced, but the device complexity increases
Solution Approach 1:
The patent implements a universal enrollment system that can capture and process multiple facial configurations within a single verification framework. The system allows users to enroll profiles with various accessories (glasses, hats, masks) and different facial expressions by capturing images from multiple angles and distances. The three-dimensional processing algorithm automatically adapts to different configurations, creating a multi-functional enrollment system that handles diverse scenarios without requiring separate verification systems for each case, thus managing complexity while enhancing security.
Data Source
AI summary
A method and system are disclosed for creating a graphic element representing encoded biometric data that represents the facial biometrics of two or more individuals. The method includes capturing facial images of each person, generating non-reversible face-derived feature vector data, and embedding this data into a graphic on the item. To validate that the graphic is derived from the people presenting the graphic, the graphic is processed to extract corresponding feature vector data, which is compared to the data derived from newly collected facial images of the presenting people. Validation indicators are based on threshold comparisons. The system supports verification using photographs on the item and enables secure association through trusted entities and cryptographic signatures. The graphic may encode alpha-numeric strings representing biometric and document data. The graphic may be applied to any document or item, including driver's licenses, passports, titles, ballots, and financial instruments.