Video Stream Source Identification for Live Access Verification

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Solution Overview

Problem

Existing security systems are vulnerable to unauthorized access attempts through manipulation of video streams or images, such as pre-recorded videos being used instead of live feeds, which can bypass identity verification.

Innovation Solution

The system identifies whether a video stream is live or pre-recorded by analyzing the source type and segments images to determine if a foreground portion meets a threshold requirement, using AI-driven algorithms and deep neural networks to detect the presence of a person, triggering alerts or automated actions when unauthorized access is detected.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional access control methods (passwords, keycodes) are used, then ease of operation is improved, but security reliability deteriorates due to vulnerability to unauthorized access attempts

Engineering Contradiction:

Improveease of operationVSAvoidsecurity reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent replaces traditional mechanical access control methods (physical keys, passwords, keycodes) with a biometric-based optical system. The system uses an image capture device to obtain images of users and compares them against stored biometric data, substituting mechanical authentication with optical and computational analysis to improve security reliability while maintaining ease of operation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If biometric verification is implemented, then security reliability is improved, but device complexity increases due to additional image processing requirements

Engineering Contradiction:

Improvesecurity reliabilityVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the image processing task into distinct functional modules: an image capture device for acquiring images, a processing system for comparing images against biometric data, and a database for storing reference biometric information. This segmentation allows each component to perform its specific function efficiently, managing device complexity through modular architecture while maintaining high security reliability.

Inventive Principle:

Principle #1Segmentation

3Speed

If real-time image analysis is performed, then response speed is improved, but processing complexity increases due to detailed pixel-level examination

Engineering Contradiction:

Improveresponse speedVSAvoidprocessing complexity

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The patent extracts only the essential biometric features from captured images for comparison against stored data, rather than analyzing every pixel in real-time. The processing system identifies and compares key facial characteristics or biometric markers, extracting the necessary verification information while ignoring redundant visual data. This extraction approach maintains fast response speed while reducing processing complexity by focusing only on critical verification elements.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS12563110B2Image security using source identification

Publication Date: 2026.02.24 MICROSOFT TECHNOLOGY LICENSING LLC

AI summary

Systems and methods may be used for access control. These systems and methods may include using a data processing system to identify a video stream, determine an identification of a source type of the video stream, determine whether the video stream is live or pre-recorded based on a determined type of the source type, and output an alert to a device in response to determining that the source type indicates the video stream is pre-recorded.