Mobile Device Gaze Tracking for Dynamic Content Adaptation

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Solution Overview

Problem

Existing gaze tracking technologies do not effectively adapt content display on mobile devices based on user interest, limiting personalized interaction and efficient advertising strategies.

Innovation Solution

A method and system that recognize a region of interest (ROI) on a mobile device by analyzing user gaze through a camera, modifying content format, size, and position based on the ROI and time duration of interest, and providing additional content or advertisements when the user is engaged.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If gaze tracking technology is implemented on mobile devices, then user interaction and advertising effectiveness are improved, but device complexity and processing requirements increase

Engineering Contradiction:
Improveuser interactionVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The mobile device's camera is made multi-functional by enabling it to perform both its traditional photography function and gaze tracking function. The camera captures images for both purposes, and the processor analyzes these images to determine user gaze direction and region of interest, eliminating the need for separate dedicated gaze tracking hardware.

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

Solution Approach 2:

The system uses the mobile device's own existing resources (camera, processor, display) to perform gaze tracking and content adaptation without requiring external dedicated equipment. The device serves itself by utilizing its built-in components for both traditional operations and the new gaze-based interaction functionality.

Inventive Principle:
Principle #25Self-service

2Productivity

If content is modified based on user gaze, then advertising effectiveness increases, but processing time and computational resources increase

Engineering Contradiction:
Improveadvertising effectivenessVSAvoidprocessing time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system continuously captures images from the camera and pre-processes them to identify the user's gaze direction and determine the region of interest before advertising content needs to be modified. This preliminary analysis allows the system to have gaze information ready when advertising decisions need to be made, reducing real-time processing delays.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system focuses computational resources on analyzing only the relevant portions of captured images where the user's gaze is directed, rather than processing entire images or all possible content areas. This partial analysis approach reduces computational load while maintaining accurate gaze tracking for advertising purposes.

Inventive Principle:
Principle #16Partial or excessive action

3Adaptability or versatility

If additional content is provided based on gaze duration, then user engagement increases, but information overload and user distraction may occur

Engineering Contradiction:
Improveuser engagementVSAvoiduser distraction
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The system dynamically adjusts content provision based on the duration of user gaze. Content is not provided statically but evolves over time as the user continues to gaze at the same area. The system monitors gaze duration and adaptively decides when to provide additional content, ensuring that content delivery matches the user's actual engagement level and reduces unnecessary distractions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system uses continuous feedback from gaze tracking to regulate content provision. By monitoring whether the user maintains gaze on a particular area, the system receives feedback about user interest and adjusts content delivery accordingly. This feedback mechanism ensures content is provided only when genuinely needed and prevents information overload by stopping provision when gaze shifts away.

Inventive Principle:
Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances user interaction by dynamically modifying content based on user interest, increasing advertising effectiveness by charging advertisers based on engagement metrics such as gaze duration and interest levels.

Implementation Method 1

determining a gaze area of the user by analyzing information being input through a camera of the mobile device

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS10235693B2Method and system for providing advertisement based on gaze of user
Publication Date: 2019.03.19 NAVER CORP
  • US10235693B2 patent drawing
  • US10235693B2 patent drawing
  • US10235693B2 patent drawing

AI summary

Methods and systems of modifying content displayed by a mobile device are provided. A region of interest (ROI) of a user is recognized. The ROI may be associated with content being displayed on a display of the mobile device. A time duration of interest based on the ROI is determined. The displayed content is modified based on the ROI, the time duration of interest, and a content type of the displayed content.