GlassesViewer

GlassesViewer parses, synchronizes, visualizes, and annotates multimodal Tobii Pro Glasses 2 eye-tracking data to support quantitative analysis of gaze behavior and related sensor signals.

Key Features:

• MATLAB implementation: Implemented in MATLAB and operates on recordings produced by the Tobii Pro Glasses 2.
• Data unpacking, parsing, and synchronization: Unpacks and parses Tobii Pro Glasses 2 recordings and synchronizes multiple data streams.
• Supported data streams: Handles gaze direction, pupil size, gyroscope, accelerometer, TTL input signals, scene camera video, and eye camera video.
• Time-series visualization: Provides visualization of time-series for gaze direction, pupil size, gyroscope, and accelerometer and aligns these signals with scene and eye camera video.
• Annotation and classification: Supports labeling of data segments via user-provided event classification algorithms or manual annotation for event-based analyses.
• Integration with GazeCode: Integrates with the GazeCode tool (Benjamins et al., 2018) to enable additional gaze-coding analyses.

Scientific Applications:

• Cognitive science: Enables analysis of gaze behavior and attention mechanisms in experimental studies.
• Psychology: Supports behavioral studies that require synchronized pupil-size and gaze-direction metrics with task events.
• Human-computer interaction: Facilitates evaluation of user interactions with digital interfaces using synchronized gaze and scene recordings.
• Neuroscience: Provides multimodal gaze and sensor data for investigations of sensorimotor and attentional processes.

Methodology:

Implements unpacking, parsing, and synchronization of Tobii Pro Glasses 2 data streams (gaze direction, pupil size, gyroscope, accelerometer, TTL inputs, scene and eye camera videos), time-series visualization, event labeling via user-provided classification algorithms or manual annotation, and integration with GazeCode; implemented in MATLAB.