Dynamic Image Authentication via Real-World Interaction

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Solution Overview

Problem

Existing authentication methods, including facial recognition and audio recognition, are vulnerable to unauthorized intrusions, such as hackers using prerecorded and altered video/audio feeds, leading to a need for improved techniques to enhance security and accuracy.

Innovation Solution

An authentication system that utilizes a sensor system on a mobile device, including a camera, to capture images of real-world objects or interactions with displayed images, and communicates this data to an authenticator to determine if the interaction is indicative of an authorized user, thereby granting access to protected data or services.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If facial recognition and audio recognition processes are used for authentication, then the level of security is increased, but the system becomes vulnerable to unauthorized intrusions using prerecorded and altered video/audio feeds

Engineering Contradiction:

Improveauthentication securityVSAvoidvulnerability to spoofing attacks

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system transitions from static authentication (prerecorded videos) to dynamic authentication by requiring users to perform real-time head movements and facial expressions. The camera captures continuous video feeds during the authentication process, analyzing dynamic changes in facial geometry and head position rather than comparing against static or prerecorded images.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system incorporates real-time feedback mechanisms where the camera continuously monitors facial movements and head positions during authentication. The processor analyzes the dynamic changes in real-time, providing immediate verification that the user is performing the required actions, thereby preventing spoofing attempts with prerecorded media.

Inventive Principle:

Principle #23Feedback

2Ease of operation

If traditional authentication methods are used, then the system is easier to operate, but the accuracy of detecting inauthentic user requests decreases

Engineering Contradiction:

Improveauthentication process simplicityVSAvoiddetection accuracy of inauthentic requests

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The system requires users to perform more authentication actions than traditional methods (head movements, facial expressions, real-time camera verification) beyond simple password entry. This excessive action requirement increases detection accuracy by multiple factors while remaining operationally simple for authorized users who can naturally perform these actions.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS12273724B1Authentication based on user interaction with images or objects

Publication Date: 2025.04.08 UNITED SERVICES AUTOMOBILE ASSOCIATION (USAA)

AI summary

An authentication system includes an authenticator that receives an authentication request from a device and receives sensor data from one or more sensors, the sensor data being indicative of interaction with one or more real world objects or with a displayed authentication image. The authenticator determines that the sensor data is indicative of an authorized interaction with the one or more real world objects or with the displayed authentication image and, in response to the determination, grants the authentication request.