Gaze tracking system with improved calibration, accuracy compensation, and gaze localization smoothing

摘要

In the gaze tracking system, localized error correction can be applied. The display area can be divided into error correction zones, and each zone can have its own error correction parameters or functions. Calibration points can be defined for each of these zones, and the correction parameter or function within each zone can depend on the observed error when the user views each calibration point associated with the zone. Similarly, the function applied to smooth the determined gazing point to reduce noise is also localized by basing its characteristics on the noise occurring at each calibration point associated with the defined noise calibration zone. Can be The error correction function and / or the noise smoothing function can be selected based on the requirements of the particular application receiving the corrected and smoothed gaze position.