Shared-Screen Gaze Guidance Using Viewer Focus Feedback

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Solution Overview

Problem

Existing devices fail to effectively guide viewer's lines of sight when a presenter's attention is not focused on the shared screen, leading to confusion and ineffective guidance.

Innovation Solution

An information processing device with a line-of-sight information acquisition unit and a line-of-sight guidance display determination unit that determines and displays guidance based on viewer correlation and focus points, independent of the presenter's focus.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If line-of-sight guidance is frequently displayed to track presenter's focus point, then viewer's line of sight can be guided to presenter's attention, but viewers become confused and guidance becomes ineffective

Engineering Contradiction:

Improveline-of-sight guidance accuracyVSAvoidviewer confusion

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The system acquires line-of-sight information from multiple viewers and uses this feedback to determine whether guidance should be displayed. By monitoring viewer focus patterns and comparing them with presenter focus, the system intelligently decides when guidance is needed, avoiding excessive display that causes confusion while maintaining effective guidance when necessary.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The guidance display is made dynamic rather than static or continuous. The system adjusts guidance display based on real-time analysis of viewer line-of-sight data, enabling guidance only when viewer focus points diverge significantly from presenter focus, thereby adapting to actual viewer engagement states.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If line-of-sight guidance is displayed based on presenter's focus point, then guidance can be provided when presenter and viewers focus on same area, but guidance fails when presenter's focus is displaced from viewers' focus

Engineering Contradiction:

Improveguidance effectivenessVSAvoidguidance reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

Instead of determining guidance need based solely on presenter's focus point, the system inverts the approach by baseing guidance determination on viewer line-of-sight information. The system acquires line-of-sight data from multiple viewers and determines guidance necessity from their collective focus patterns, ensuring guidance is provided when viewers need it rather than only when presenter indicates it.

Inventive Principle:

Principle #13The other way round (Inversion)

3Measurement precision

If guidance image is frequently displayed to correct focus point mismatch, then focus alignment can be maintained, but guidance frequency increases causing viewer confusion

Engineering Contradiction:

Improvefocus point alignmentVSAvoidguidance display frequency

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The system applies partial action by displaying guidance only when necessary rather than continuously or excessively. By analyzing viewer line-of-sight data and comparing with presenter focus, the system determines optimal moments for guidance display, providing just enough guidance to maintain focus alignment without over-guiding that causes confusion.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS12627789B2Information processing device, information processing method, and program

Publication Date: 2026.05.12 SONY GROUP CORP

AI summary

An information processing device includes a line-of-sight information acquisition unit that acquires line-of-sight information about viewers on a shared screen displayed on a display unit, and a line-of-sight guidance display determination unit that determines whether to display line-of-sight guidance for guiding the lines of sight of the viewers, on the basis of the line-of-sight information about the viewers.