Gaze Detection Display Switching to Reduce Lighting Interference
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Solution Overview
Problem
Existing gaze detection systems face challenges in accurately determining gaze positions, particularly when image data is being output to a display, leading to reduced detection accuracy.
Innovation Solution
The system alternates between displaying first image data and second image data on the display, where the first image data is used for regular viewing and the second image data, which is typically a black image, is used for gaze detection, allowing for precise gaze position determination by a gaze sensor during the second image period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gaze detection is performed during the period when first image data is output to the display, then the display shows normal image content, but the detection accuracy of gaze position deteriorates due to interference from display lighting
Solution Approach 1:
The system alternates between displaying first image data and second image data in periodic cycles. During periods when second image data is displayed, gaze detection is performed with high accuracy due to minimized lighting interference. This periodic switching allows both continuous display operation and periodic high-accuracy gaze detection to coexist.
Solution Approach 2:
The display output is segmented into different types of image data: first image data for normal viewing and second image data for gaze detection. By segmenting the display content into functionally distinct periods, the system can optimize for different objectives at different times without compromising overall system performance.
2Measurement precision
If second image data is displayed for gaze detection, then detection accuracy improves due to reduced lighting interference, but the display shows black images instead of normal content
Solution Approach 1:
The system periodically switches between displaying first image data (normal content) and second image data (black image for detection). During periods when second image data is displayed, gaze detection achieves high precision due to minimized lighting interference. The periodic nature ensures that normal display content is still available during other periods.
Solution Approach 2:
The patent extracts the gaze detection function from the normal display operation by using separate second image data periods. During these extracted periods, the display shows black images optimized for gaze detection rather than normal content, allowing the detection function to be isolated and optimized independently.
3Productivity
If the system continuously outputs first image data to the display, then normal viewing is maintained, but gaze detection accuracy deteriorates due to display lighting interference
Solution Approach 1:
Instead of continuously displaying only first image data, the system implements periodic switching between first and second image data. This allows the display to maintain normal content during first image data periods while enabling high-precision gaze detection during second image data periods, achieving both display continuity and detection precision through time-based periodic action.
Solution Approach 2:
The display operation is segmented into different functional periods: periods for normal viewing and periods for gaze detection. This segmentation allows the system to optimize for different objectives at different times, maintaining both display continuity and detection precision by allocating appropriate time slots for each function.
Data Source
AI summary
An information processing device includes a processor, in which the processor acquires first image data and second image data, outputs any of the first image data or the second image data to a display, acquires gaze data in a period in which the second image data is output to the display, and detects a gaze position with respect to the display based on the gaze data.