DOI: 10.6084/m9.figshare.28001453
title: Pre-AttentiveGaze: Gaze-based Authentication Dataset with Momentary Visual Interactions

description: Pre-attentiveGaze dataset is designed to enable gaze-based authentication using momentary eye movement information. This dataset was constructed by collecting 76,840 gaze samples from 34 participants over 5 sessions and includes both the raw dataset and extracted gaze feature dataset. The raw dataset contains trial data and validation data, while the gaze feature dataset is extracted from the trial data for the purpose of modeling the classification of participants. The gaze feature dataset includes two tsv files, "MultipleVC.tsv" and "SingleVC.tsv", containing gaze feature data corresponding to their respective stimuli types. <br>

The data variables of the Pre-AttentiveGaze dataset are as follows. <br><br>

[Raw Data description] <br>
Recording timestamp<br>
- Description: Timestamp counted from the start of the recording<br>
- Column: recording timestamp<br>
- Unit: µs<br>
Gaze point 2D<br>
- Description: Raw gaze coordination for both eyes combined<br>
- Column: Gaze point X, Gaze point Y<br>
- Unit: pixel <br>
Pupil diameter <br>
- Description: Estimated size of the eye pupil<br>
- Column: Pupil diameter left, Pupil diameter right<br>
- Unit: mm<br>
Pupil diameter filtered<br>
- Description: Pupil diameter after applying pupil diameter filter(noise reduction by moving median) <br>
- Column: Pupil diameter filtered<br>
- Unit: mm<br>
Validity of eye data<br>
- Description: Indication whether the eyes have been correctly identified<br>
- Column: Validity left, Validity right<br>
- Unit: Valid/Invalid<br>
Eye position<br>
- Description: 3D position of the eyes <br>
- Column: Eye position left X, Eye position left Y, Eye position left Z, Eye position right X, Eye position right Y, Eye position right Z<br>
- Unit: mm<br>
Eye movement type<br>
- Description: Type of eye movement event classified by the I-VT(velocity threshold identification) filter applied during the gaze data export<br>
- Column: Eye movement type <br>
- Unit: Fixation/Saccade/Unclassified/EyesNotFound<br>
Gaze event duration<br>
- Description: Duration of the currently active eye movement<br>
- Column: Gaze event duration<br>
- Unit: ms<br>
Eye movement type index<br>
- Description: Order number in which an eye movement was recorded<br>
- Column: Eye movement type index <br>
- Unit: number<br>
Fixation point<br>
- Description: Coordination of the fixation point. <br>
- Column: Fixation point X, Fixation point Y<br>
- Unit: pixel<br><br>

[Validation Data Description] <br>
- Participant: ID for the participant who performed that calibration phase<br>
- Session: The session number during which the calibration phase was conducted<br>
- Stimuli type: The stimuli type presented after the calibration phase<br>
- List of stimuli index number: List of the stimuli indices presented after the calibration phase<br>
- Average validation accuracy: The average deviation between the predicted gaze points and the actual gaze targets<br>
- Average validation precision RMS: The RMS deviation of the predicted gaze points from their mean. <br><br>

[Gaze Feature Dataset Description] <br>
Raw Gaze<br>
- X: Corresponding to Gaze point X (x1, …, x84) <br>
- Y: Corresponding to Gaze point Y (y1, …, y84) <br>
Eye Movement<br>
- Path length: Length of path traveled in screen<br>
- Gaze velocity: Velocity of path traveled in screen<br>
- Gaze angle: Angular changes between consecutive raw gaze points<br>
- Eye movement type: Type of eye movement event classified by the I-VT filter; Fixation: 1, Saccade: 2, else: 0<br>
Fixation<br>
- Reaction time: Time until the first fixation is made outside the cross point (equal to the first fixation time) <br>
- Fixation duration: Duration per fixation interval<br>
- Fixation dispersion: Spatial spread during a fixation<br>
Fixation count: Number of fixation intervals identified within 84 sampled gaze points<br>
Saccade<br>
- Saccade duration: Duration per saccade interval<br>
- Saccade amplitude: The angular distance traveled by the eye during a saccadic movement<br>
- Saccade velocity: The angular speed of the eye during a saccade<br>
- Saccade dispersion: Spatial spread during a saccade<br>
- Saccade count: Number of saccade intervals identified within 84 sampled gaze points<br>
MFCC: 12 Mel-frequency cepstral coefficients for overall stimuli<br>
Pupil<br>
- Left pupil diameter: Pupil diameter of left eye<br>
- Right pupil diameter: Pupil diameter of right eye<br>
- Filtered pupil diameter: Pupil diameter after applying pupil diameter<br>