The Science Behind GrimaceTracker
Understanding pain in laboratory animals through advanced AI-powered facial expression analysis
The Mouse Grimace Scale
The Mouse Grimace Scale (MGS) is a validated method for assessing pain in rodents by evaluating facial expressions. It examines five facial action units:
- Orbital tightening
- Nose bulge
- Cheek bulge
- Ear position
- Whisker change
Each unit is scored 0-2, providing an objective pain assessment score that enables researchers to monitor animal welfare effectively.
Our AI Technology
Deep Learning
Advanced neural networks trained on thousands of rodent facial images for highly accurate pain detection and classification
Computer Vision
State-of-the-art image processing to automatically identify and analyze facial features in real-time
Real-Time Processing
Optimized algorithms running on cloud infrastructure for instant analysis and immediate feedback
How It Works
Simple 4-step workflow from project creation to documentation
Create Project
Film Rodent
AI Analysis
Save & Document
Research Cooperation
GrimaceTracker is developed in cooperation with the Fraunhofer Institut für Zelltherapie und Immunologie (IZI) in Leipzig, Germany. This collaboration ensures our technology meets the highest scientific standards for animal welfare research. Our joint mission is to improve the quality of research while reducing animal suffering through objective, automated pain assessment.