3D Facial Authentication via Camera and Motion Sensors
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Solution Overview
Problem
Existing biometric security methods, such as fingerprint systems and two-dimensional facial recognition, are considered unreliable and insecure for authenticating users on small electronic devices, as they can be easily bypassed using photographs or recordings.
Innovation Solution
A method for enrolling and authenticating users using a mobile device with a camera, which captures enrollment and authentication images of the user's face from different angles and distances, combined with movement sensors to determine the enrollment and authentication movement paths, and processes the images for face detection and biometric information extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two-dimensional facial recognition is used for authentication, then the system is simpler and faster to implement, but the security and reliability are insufficient as faces can be photographed or recorded to trick the system
Solution Approach 1:
The patent transitions from two-dimensional facial recognition to three-dimensional facial mapping by capturing multiple images from different angles and distances. This creates a volumetric representation of the user's face, making it impossible to spoof with photographs or videos, thereby resolving the security issue while maintaining reasonable system complexity through mobile device cameras and sensors
2Reliability
If fingerprint systems are used for authentication on small electronic devices, then the authentication process is simple, but the systems are considered unreliable and unsecure
Solution Approach 1:
The patent replaces mechanical fingerprint scanning with optical/facial recognition technology. By using a camera to capture 3D facial data and movement patterns, the system achieves higher security without requiring physical contact or complex mechanical sensors, maintaining ease of operation while significantly improving reliability
3Reliability
If long passwords meeting various criteria are required for secure access, then the security against identity theft is improved, but the ease of operation deteriorates as it becomes cumbersome to type long passwords on small devices
Solution Approach 1:
The patent substitutes the mechanical act of typing passwords with optical facial recognition. Users simply need to present their face to the camera and perform a natural movement pattern, eliminating the cumbersome task of entering long, complex passwords while maintaining strong security through biometric verification
4Adaptability or versatility
If multiple enrollment profiles with different accessories and expressions are created, then the adaptability and security are improved, but the device complexity and enrollment time increase
Solution Approach 1:
The patent implements dynamic facial mapping that adapts to different conditions (accessories, expressions, lighting) during the authentication process rather than requiring separate enrollment profiles. The system learns and adjusts to the user's varying appearance in real-time, providing flexibility without requiring multiple separate enrollment sessions, thus reducing time loss
Data Source
AI summary
Systems and methods for enrolling and authenticating a user in an authentication system via a camera of a computing device include capturing and storing biometric information from at least one first image and at least one second image of the user taken via the camera. Prior to use, the user answers personal questions and the answers are stored as stored answer data. Later, such as at a business, the questions are presented to the user and the user provides their personal answers via a computing device. The answers are processed and uploaded to an authentication server where a comparison occurs against the stored answer data. If a match does not occur, then the authentication/identity verification processes ends. If a match does occur, then the authentication process continues. The questions match may serve as a gate function for accessing authentication data stored in a blockchain.