Attention Direction Indicator for Videoconferencing Systems
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Solution Overview
Problem
Videoconferencing technology often fails to clearly convey the direction of a satellite participant's attention to hub participants, as subtle cues like head or eye gaze are ambiguous in visual representations, making it difficult for them to determine the target of the satellite's questions or comments.
Innovation Solution
A communication system that receives explicit and implicit control inputs to generate outputs indicating the direction of awareness, using mechanisms like mechanical pointers, solid-state displays, or visual information to help hub participants determine the satellite's focus, with a mode selection module choosing the appropriate output based on selection criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional videoconferencing systems are used to present visual representation of satellite participant, then the system is simple and easy to operate, but the direction of attention cannot be clearly conveyed to hub participants
Solution Approach 1:
The patent introduces an intermediary indicator mechanism that mediates between the satellite participant's actual gaze direction and the hub participants' perception. This indicator explicitly shows which hub participant is being looked at, resolving the information loss without fundamentally changing the videoconferencing system architecture.
Solution Approach 2:
The patent changes the parameter of visual information presentation by adding directional indicators (such as arrows or highlighted regions) to the video feed. This transforms the static visual representation into a dynamic one that conveys attention direction, addressing the information loss while maintaining system simplicity.
2Loss of information
If explicit control mechanisms are added to indicate direction of awareness, then the direction information becomes clear, but the ease of operation decreases
Solution Approach 1:
The system employs self-service by automatically detecting the satellite participant's gaze direction using existing camera and image processing capabilities. No manual control input is needed from the user, as the system autonomously determines and displays the attention direction, thus maintaining ease of operation while resolving information loss.
Solution Approach 2:
The patent implements feedback by continuously monitoring the satellite participant's head and eye position and automatically adjusting the displayed indicator accordingly. This closed-loop system provides accurate direction information without requiring explicit user commands, preserving operational convenience.
3Ease of operation
If implicit control mechanisms are used to detect gaze direction, then the operation remains simple, but the measurement precision of attention direction may be insufficient
Solution Approach 1:
The patent merges multiple detection methods (head position detection, eye gaze detection, and facial feature analysis) into a unified system. By combining these implicit control mechanisms, the system achieves both operational simplicity and improved measurement precision of gaze direction.
Solution Approach 2:
The system enhances measurement precision by adding another dimension of analysis - combining head orientation data with eye gaze data. This multi-dimensional approach allows for more accurate determination of attention direction while maintaining automatic, simple operation.
Data Source
AI summary
A communication system is described herein which provides an indicator that helps hub participants of a meeting (or other environmental setting) determine a direction of attention of a satellite participant (who is not physically present at the meeting). The indicator can be implemented as a mechanical pointer, a solid-state display mechanism, a rotating display mechanism, a display mechanism which presents visual information that reflects directionality, and so on. The communication system can assess the directionality of the satellite participant based on any combination of control inputs from explicit input mechanism(s) and/or implicit input mechanism(s). The communication system can also choose between explicit and/or implicit control of the indicator based on at least one selection criterion.