PupilEXT

PupilEXT performs pupil detection and diameter measurement from single- and stereo-camera recordings to quantify pupil responses for research.

Key Features:

• Hardware and Software Integration: Supports real-time pupil diameter measurements using a stereo camera system or a single camera setup and integrates hardware and software components comparable to commercial stereo eye-tracking systems.
• Advanced Detection Algorithms: Implements six open-source pupil detection algorithms: Starburst, Swirski, ExCuSe, ElSe, PuRe, and PuReST.
• Comprehensive Functionality: Provides offline pupil analysis, image acquisition, data validation, camera calibration, stereo vision processing, data visualization, and system-independent operation.

Scientific Applications:

• Pupil response research: Enables quantitative measurement of pupil diameter for professional pupil response studies.
• Stereo eye-tracking experiments: Supports camera calibration and stereo vision processing for stereo eye-tracking setups.

Methodology:

Methods explicitly include real-time pupil diameter measurement from single or stereo cameras, application of the Starburst, Swirski, ExCuSe, ElSe, PuRe, and PuReST pupil-detection algorithms, offline pupil analysis, image acquisition, data validation, camera calibration, stereo vision processing, and data visualization.