Invalidate Near Blink for Entrance Pupil Data
Invalidates entrance pupil data before and after a blink.
Eye tracking data around blinks can sometimes exhibit what can best be described as “dipping”, a measurement of vertical movement. Since this dipping behavior can interfere with some algorithms this filter allows you to invalidate eye tracking samples around blinks more aggressively so that dipping won’t be detected.
Notes
- This filter must be used on data with monotonic time stamps.
Recommended Configuration
- “after” - 20000 µs
- “before” - 20000 µs
- “min blink duration” - 50000 µs