Display Gaze Tracking for Objective Content Viewing Verification
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Solution Overview
Problem
Existing methods lack an objective measure to determine if a subject has properly viewed digital content, particularly in critical contexts like medical consent, leading to potential misunderstandings.
Innovation Solution
A computer-implemented method using gaze tracking to determine display portions viewed by a subject, generating a score by comparing gaze data with a predetermined template, and certifying content viewing based on a threshold score.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional explanation methods are used to convey information to a subject, then the information can be delivered, but there is no objective measure to verify whether the subject has properly viewed or understood the content
Solution Approach 1:
The patent replaces subjective self-reporting mechanisms with objective gaze tracking technology. Eye tracking systems capture and analyze the subject's visual attention patterns, providing measurable data about which portions of content were actually viewed and for how long, thereby substituting unreliable mechanical self-reporting with precise optical measurement.
Solution Approach 2:
The patent introduces an intermediary verification system that sits between the content delivery and the consent process. The gaze tracking system acts as a mediator that objectively monitors and verifies whether the subject has properly viewed the content before allowing consent to be recorded, preventing premature or uninformed consent.
2Measurement precision
If time-based tracking is used to monitor content viewing, then some measurement is obtained, but the method cannot accurately determine whether the subject has properly engaged with the material
Solution Approach 1:
The patent replaces crude time-based tracking with sophisticated gaze tracking technology that measures actual visual attention. Instead of merely recording how long content was displayed or supposedly viewed, the system captures precise eye position data to determine whether the subject's eyes were actually focused on the content, providing much more accurate engagement assessment.
Solution Approach 2:
The patent changes the measurement parameter from simple time duration to gaze position and duration metrics. By analyzing where on the screen the subject's eyes were positioned and for how long, the system transforms a crude temporal measurement into a precise spatial-temporal analysis of actual visual engagement with specific content portions.
3Measurement precision
If gaze tracking is implemented to accurately measure content viewing, then verification precision is improved, but the device complexity and implementation difficulty increase
Solution Approach 1:
The patent integrates gaze tracking functionality into existing display devices, making the verification system universal rather than requiring separate specialized equipment. The display device itself becomes multi-functional, serving both as the content delivery medium and as the platform for embedded eye tracking verification, thereby reducing overall system complexity.
Solution Approach 2:
The patent merges the gaze tracking verification system with the content delivery platform into a unified integrated system. Rather than adding a separate complex tracking apparatus, the verification functionality is combined with the existing display device, reducing the number of separate components and simplifying the overall system architecture.
Data Source
AI summary
A computer-implemented method of determining whether digital content has been viewed by a subject, the method including, displaying, by a display device, the digital content to the subject; tracking the gaze of the subject whilst displaying at least a temporal portion of the digital content to acquire tracking data; determining from the tracking data, the display portions of the display device viewed in that temporal portion of the digital content; and generating at least one score by comparing these portions to a predetermined template of display portions for that temporal portion of the digital content; and determining that the subject has viewed at least the temporal portion of the digital content based on the at least one score. A display device and system are also disclosed.