Micropattern Detection for Video Authentication Against Deep Fakes

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Solution Overview

Problem

Current authentication methods for accessing secured resources are often cumbersome, requiring multiple identification factors and increasing the risk of video forgery, particularly with the rise of deep fake technologies.

Innovation Solution

A method and system that utilize a micropattern detection-based video authentication, where a secondary computing device displays a unique micropattern visible only under specific display settings, and this pattern is captured by the user's computing device to verify the authenticity of the video.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional authentication methods (identification cards, key-cards, fingerprints, passwords) are used, then user identity can be verified, but the process becomes time-consuming and burdensome for users

Engineering Contradiction:
Improveauthentication reliabilityVSAvoidauthentication time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system enables self-service authentication by automatically detecting the micropattern on the user's device screen and verifying their identity without requiring manual presentation of credentials. The authentication occurs passively as the user interacts with their device normally, eliminating the need for users to manually provide identification factors.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces mechanical and manual authentication mechanisms (physical ID cards, key-cards, fingerprint scanners) with an optical detection system that captures and analyzes micropatterns displayed on electronic screens. This substitution eliminates the need for physical credential handling and manual verification processes.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If multiple identification factors are required, then account security is improved, but user convenience deteriorates

Engineering Contradiction:
Improveaccount securityVSAvoiduser convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The micropattern serves multiple functions simultaneously: it acts as a unique identifier, a security credential, and a display element. By embedding the authentication pattern within the normal display output of the device, the system eliminates the need for separate identification factors while maintaining security.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the authentication credential with the device display functionality. The micropattern is integrated into the screen output, combining the visual display function with the authentication function into a single unified mechanism, thereby eliminating the need for separate physical or digital credentials.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If video authentication is used, then access can be granted remotely, but the risk of video forgery (deep fakes) increases

Engineering Contradiction:
Improveremote access capabilityVSAvoidvideo forgery risk
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The micropattern acts as an intermediary verification layer between the video feed and the authentication decision. Instead of directly analyzing the video content for authenticity, the system uses the micropattern as an intermediate credential that must be present and correct to validate the video as authentic, thereby mitigating deep fake risks.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The micropattern serves as a single-use, disposable authentication element that is displayed temporarily during the authentication process and then discarded. This eliminates the need for reusable credentials and reduces the risk of credential reuse or storage breaches, while providing a unique verification for each authentication event.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS12284187B1Micropattern detection-based video authentication method and system
Publication Date: 2025.04.22 UNITED SERVICES AUTOMOBILE ASSOCIATION (USAA)
  • US12284187B1 patent drawing
  • US12284187B1 patent drawing
  • US12284187B1 patent drawing

AI summary

A micropattern detection-based method and system of performing an authentication of video of a person in order to authorize access to a secured resource is provided. The user provides image data in which they present a secondary computing device with a specially fabricated screen cover. The screen cover includes a plurality of micro-holes that collectively provide a unique micropattern. When the user adjusts a display setting, the micropattern, previously cloaked, becomes apparent as an arrangement of pinpoints of light. The system and method are configured to evaluate the image data to determine whether the micropattern is present. If a micropattern is present, the system determines the image is authentic and can verify an identity of the person. In some cases, the system can further be configured to automatically grant the person access to one or more services for which they are authorized.