Gaze-Based Selection Control for Wearable Virtual Spaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current simulation control devices using wearable image display devices lack intuitive and efficient methods for user interaction, particularly in maintaining object selection and navigation within virtual spaces, which can lead to safety concerns and reduced user experience.
Innovation Solution
A simulation control device that utilizes a wearable image display device to measure gaze time, allowing users to select and confirm object selection through threshold-based gaze interactions, with visual feedback and animation to manage selection states, enabling hands-free operation and improved safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If gaze time measurement with threshold values is implemented for object selection, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent replaces traditional mechanical control systems (buttons, joysticks, hand controllers) with a gaze-based control system that uses eye tracking technology. The measurement section detects gaze direction and duration through optical sensors and image processing, substituting physical interaction mechanisms with physiological signal detection. This enables hands-free operation while maintaining intuitive control, directly improving ease of operation despite adding sensor complexity.
Solution Approach 2:
The system utilizes the user's natural gaze behavior as the control input mechanism, requiring no additional training or learning. The measurement section automatically detects when the user is looking at an object and measures gaze time without requiring explicit user actions. The threshold-based selection automatically activates based on sustained gaze, making the system self-adapting to natural user behavior patterns.
2Reliability
If hands-free operation is enabled through gaze control, then safety is improved, but measurement precision requirements increase
Solution Approach 1:
The system performs preliminary gaze detection and measurement before triggering object selection. The measurement section continuously monitors gaze direction and accumulates gaze time data before the first threshold value is reached. This preliminary measurement phase ensures that transient or accidental glances do not trigger selections, providing a buffer that enhances measurement reliability and safety.
Solution Approach 2:
The notification section provides visual feedback to the user about the current gaze measurement status and selection state. This feedback mechanism allows users to verify that their gaze is being correctly detected and measured, enabling them to adjust their behavior if measurement errors occur. The feedback loop enhances both safety and effective measurement precision by allowing real-time correction.
3Ease of operation
If visual feedback and animation are used for state management, then ease of operation is improved, but use of energy increases
Solution Approach 1:
The display processing section updates visual feedback and animations periodically rather than continuously, synchronized with the frame rate of the wearable display device. Visual effects such as highlight changes, selection indicators, and confirmation animations are triggered only at relevant events (gaze threshold crossing, selection confirmation) rather than running continuously. This periodic update strategy maintains clear state communication while significantly reducing energy consumption compared to continuous high-refresh-rate rendering.
Data Source
AI summary
A simulation control device that utilizes a wearable image display device includes: a display processing section that displays a virtual space on the wearable image display device; a measurement section that measures a gaze time of a user with respect to an object that is placed in the virtual space; a reception section that determines that the object has been selected when a measured value obtained by the measurement has reached a first threshold value, and determines that the selection has been confirmed when the measured value has reached a second threshold value that is larger than the first threshold value; and a notification section that notifies the user of a magnitude of the measured value.