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GlassesViewer: Open-source software for viewing and analyzing data from the Tobii Pro Glasses 2 eye tracker.
Diederick C Niehorster1, Roy S Hessels2, Jeroen S Benjamins3
1Lund University Humanities Laboratory and Department of Psychology, Lund University, Lund, Sweden. diederick_c.niehorster@humlab.lu.se.
Behavior Research Methods
|January 4, 2020
Summary
GlassesViewer is open-source MATLAB software for analyzing Tobii Pro Glasses 2 eye-tracking data. It processes multiple data streams and integrates with GazeCode for a complete open-source analysis workflow.
Area of Science:
- Human-Computer Interaction
- Biomedical Engineering
- Data Science
Background:
- Eye-tracking technology is crucial for understanding human behavior and cognitive processes.
- Head-mounted eye trackers, such as the Tobii Pro Glasses 2, offer rich, ecologically valid data.
- Analyzing the complex, multi-stream data from these devices presents significant challenges.
Purpose of the Study:
- To introduce GlassesViewer, an open-source MATLAB software package.
- To provide a comprehensive tool for viewing and analyzing Tobii Pro Glasses 2 data.
- To facilitate a complete, open-source workflow for eye-tracking data analysis.
Main Methods:
- Developed a MATLAB-based software tool, GlassesViewer.
- Implemented a graphical interface for navigating Tobii Pro Glasses 2 data structures.
- Included functionality to unpack, parse, and synchronize diverse data streams (eye-tracking, video, sensor data).
- Integrated manual annotation and user-defined event classification capabilities.
- Enabled integration with the GazeCode tool for advanced analysis.
Main Results:
- GlassesViewer offers a user-friendly interface for data exploration.
- The software successfully synchronizes and visualizes multiple data streams from the Tobii Pro Glasses 2.
- Data segmentation and annotation are supported within the software.
- Seamless integration with GazeCode is achieved, enabling a unified open-source analysis pipeline.
Conclusions:
- GlassesViewer provides a valuable, open-source solution for researchers using Tobii Pro Glasses 2.
- The software simplifies the complex process of eye-tracking data analysis.
- It promotes reproducible and accessible research in eye-tracking studies.
