Gaze Tracker Single Reflection Point Tracking

The system performs gaze tracking using only one lighting reflection point when necessary, rather than requiring both reflection points. This partial action approach allows the system to function with incomplete data (one reflection point) by utilizing alternative methods such as cornea-pupil vector calculation and distance information from pre-stored data, thereby expanding the gaze tracking range to include cases where only one reflection point is visible

The system changes the measurement parameters by switching between two different calculation methods depending on the number of detected reflection points. When two reflection points are detected, it uses the intersection of vectors method for high precision. When only one reflection point is detected, it transitions to using cornea-pupil vector and distance information methods, allowing the system to adapt its measurement approach to maintain functionality across different viewing conditions

The system dynamically adjusts its tracking methodology based on the number of detected lighting reflection points. It transitions between different calculation approaches (two-point vector intersection vs. one-point cornea-pupil vector with distance information) depending on real-time detection conditions, making the system adaptable to varying facial angles and viewing conditions while maintaining reliable gaze tracking

The system pre-stores distance information between the cornea central point and lighting reflection points during calibration or normal operation. This preliminary data preparation enables the system to perform accurate gaze tracking even when only one reflection point is detected, as the pre-stored distance information can be utilized to compensate for the missing data point