The Science Behind GrimaceTracker
Understanding pain in laboratory animals through 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.
Our AI Technology
Deep Learning
Advanced neural networks trained on thousands of rodent facial images for accurate pain detection
Computer Vision
State-of-the-art image processing to identify and analyze facial features automatically
Real-Time Processing
Optimized algorithms for instant analysis and immediate feedback
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.