PupilMetrics Research Tool is an educational application designed to help users explore and learn about pupil characteristics through interactive image analysis with machine learning (ML) integration. The app offers tools to capture, observe, compare, and visualize pupil features from photos, presenting metrics solely for learning, research, and educational purposes. It is based on Professor Bryan K. Marcia's pupillary research from historical literature.

Key Features:

Pupil Detection

Searches within the inner portion of the detected iris
Uses adaptive thresholding based on the darkest 30% of pixels

Fits an ellipse to the dark region using covariance matrix eigenvalue decomposition

Extracts boundary points by ray-casting from center outward
Returns center, major/minor axes, orientation angle, and boundary points

Pupil Boundary Analysis

Analyzes 72 boundary points (every 5 degrees) around the pupil edge
Calculates deviation from the average radius at each clock position
Groups deviations by clock hour (12 zones)

Identifies flattenings (inward deviations) and protrusions (outward deviations)

Pupil-to-iris ratio measurement
Shape analysis (ellipseness, circularity)
Decentration pattern detection
Zone-based pattern mapping
Age-referenced baselines
Bilateral (side-by-side) comparison
Image and PLR video capture with playback
Educational annotations and metrics
Windows vision with ONNX Convolutional Neural Networks pipeline for cross validation for a confidence scores and to re-capture rather than trusting a faulty result.
Iris Research Tools
Iris 3D - Radial Analysis
PDF/TXT/JSON export
Fully Private, local data processing (no cloud upload)

Intended Use: Educational demonstrations
Research exploration
Learning visual pattern recognition
Academic or training purposes
To review PupilMetrics App full documentation, please visit:
https://cnri.edu/docs/

Important Disclaimer:

This app is strictly a research and educational tool. It is not a medical device, does not provide medical advice, diagnosis, clinical interpretation, or evaluation of health conditions, and is not validated for clinical use. Results are informational observations only and should never replace professional healthcare consultation. Always consult qualified healthcare professionals for any health-related concerns.