Continuous Facial Authentication for Unattended Access Blocking
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Solution Overview
Problem
Existing authentication systems for electronic devices only verify user identity at the initial login phase, leaving devices vulnerable to unauthorized access when left unattended, particularly in sensitive environments like hospitals or financial institutions.
Innovation Solution
A continuous facial recognition system that monitors the user's environment, using a camera to detect and verify authorized faces, blocking access if an unauthorized person is detected, and optionally recording suspicious activities for review.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional authentication systems are used that only verify user identity at initial login, then the ease of operation is improved, but the security is worsened leaving devices vulnerable to unauthorized access when left unattended
Solution Approach 1:
The system implements continuous facial recognition monitoring that operates throughout the entire user session, not just at login. The camera continuously captures images and compares them against the authorized user's facial data, maintaining constant verification to prevent unauthorized access while the device is in use.
Solution Approach 2:
The patent replaces traditional mechanical authentication methods (password entry, physical keys) with biometric facial recognition. This substitution enables non-contact, automated continuous verification that maintains security without significantly impacting user convenience.
2Reliability
If continuous facial recognition monitoring is implemented, then the security is improved, but the device complexity is worsened requiring additional camera devices and processing capabilities
Solution Approach 1:
The system utilizes the device's existing camera component, which serves dual purposes: standard display/output functions and security monitoring. This multi-functionality approach allows continuous facial recognition without adding dedicated hardware, reducing overall system complexity.
Solution Approach 2:
The system leverages the device's own processing capabilities to perform real-time facial recognition and comparison operations. By utilizing built-in computational resources rather than external servers, the system maintains security control while avoiding the complexity of additional external hardware infrastructure.
3Reliability
If continuous facial recognition is performed, then the security is improved, but the use of energy is worsened due to continuous camera operation and image processing
Solution Approach 1:
Instead of truly continuous monitoring, the system implements periodic facial recognition checks at strategically determined intervals. This periodic approach maintains security effectiveness while significantly reducing energy consumption compared to uninterrupted camera operation and processing.
Solution Approach 2:
The system performs facial recognition monitoring at a frequency sufficient to maintain security (partial action) rather than maximum continuous monitoring. This optimized frequency balances security requirements with energy conservation, avoiding excessive processing that would unnecessarily drain power resources.
Data Source
AI summary
A method of maintaining the security of an authentication session comprises operating a camera device to continuously capture a view of an environment of a computing device, performing face detection to detect all faces in the environment, performing comparisons between faces detected in the environment and faces of a set of authorized users, at a first time, detecting a first face of an authorized user of the set in the view of the environment and, in response, allowing the authorized user to operate the computing device, and at a second time after the first time, one of failing to detect the first face or detecting a second face that is not of an authorized user of the set in the view of the environment, and, in response, at least partially blocking operator access to input and output devices including blocking a display of the computing device.