Eye-Tracking Visual Content Rotation on Displays
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Solution Overview
Problem
Existing solutions for presenting visual data on computing and communication devices are inefficient and unreliable, particularly in scenarios where user interaction involves device repositioning or partial obscuration, leading to misalignment of visual content with the user's orientation, and can be annoying to activate or deactivate.
Innovation Solution
Incorporating an eye-tracking module that registers and adjusts the orientation of visual content based on the user's eye position, allowing for intuitive alignment regardless of device repositioning or partial obscuration, with energy-saving features like trigger signals for activating eye tracking only when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If facial recognition is used to detect user presence and lock/unlock device, then user authentication is automated, but the function may be triggered incorrectly when device is motionless for threshold time
Solution Approach 1:
The system continuously monitors device motion state and uses this feedback to dynamically control the activation of facial recognition. By detecting whether the device is being held or moved, the system adjusts its behavior accordingly, preventing incorrect triggering while maintaining automatic authentication when appropriate
Solution Approach 2:
The patent introduces dynamic motion detection capabilities that adapt the system's behavior based on real-time device state. The motion sensor continuously monitors device movement and dynamically adjusts the threshold for triggering facial recognition, making the system responsive to actual user interaction rather than relying on fixed time thresholds
2Reliability
If eye-tracking module is activated continuously to maintain visual content alignment, then orientation alignment is maintained, but energy consumption increases
Solution Approach 1:
Instead of continuous operation, the eye-tracking module is activated periodically based on device rotation events. The system triggers eye-tracking activation only when rotation sensors detect significant device repositioning, allowing the module to remain inactive during stable periods and conserve energy while maintaining alignment when needed
Solution Approach 2:
The system uses rotation sensor data to automatically determine when eye-tracking activation is necessary, eliminating the need for continuous operation. The motion detection mechanism serves the dual purpose of both detecting device orientation changes and triggering appropriate eye-tracking intervention only when visual realignment is actually required
3Ease of operation
If rotation detection device is used to rotate display image, then display orientation compensates for device rotation, but the solution fails when user face is partially obscured or in dim light
Solution Approach 1:
The patent implements a multi-functional detection system that combines rotation sensors for device orientation detection with eye-tracking technology for user state verification. This universal approach allows the system to handle both device repositioning and user presence verification through a single integrated mechanism that works under various lighting and obscuration conditions
Solution Approach 2:
The eye-tracking module serves as an intermediary that bridges the gap between rotation detection and reliable user interaction confirmation. By using eye position and orientation data as an intermediate verification step, the system can confirm active user engagement even when facial features are obscured or lighting is poor, preventing false positives
Data Source
AI summary
A graphics presentation apparatus including a display unit, an eye-tracking module, and a data output module. The eye-tracking module registers image data representing at least one eye of a user of the apparatus. Furthermore, the eye-tracking module determines, based on the registered image data, an orientation of the at least one eye relative to the display unit. Finally, in response thereto, the eye-tracking module generates a control signal controlling the data output module to produce visual content with such orientation on the display unit that a misalignment between the orientation of said at least one part and the orientation of the at least one eye of the user is minimized.