Project Summary: Automated Cell Culture Monitoring
ML-powered automated measurement and health classification for bioprocess cell culture monitoring.
Project Snapshot
- Role: ML Solution Lead
- Domain: Life sciences / bioprocess monitoring
- Stack: Python, computer vision, ML classification, image processing, automated measurement
- Timeline: Research-to-production deployment
Intelligent process control
ML-Powered Bioprocess Control
Machine learning classifier enabling real-time bioprocess decisions based on automated culture health assessment.
Measurement automation
Automated Measurement
End-to-end automated image processing pipeline replacing manual measurement and subjective visual assessment.
Quality classification
Health Classification
Consistent, reproducible classification of cell culture health and performance trends across production batches.
Technical Architecture
graph TD
subgraph Imaging
A[Culture Bag Imaging] --> B[Image Preprocessing]
end
subgraph Feature_Engineering
B --> C[Feature Extraction]
C --> D[Morphological Features]
C --> E[Density Features]
end
subgraph Classification
D --> F[ML Classifier]
E --> F
F --> G[Health Classification]
end
subgraph Monitoring
G --> H[Performance Trending]
H --> I[Alerts]
I --> J[Process Intervention]
end
Architecture: Culture bag imaging feeds into image preprocessing and feature extraction. Morphological and density features are classified by a supervised ML model to determine culture health. Results drive performance trending and alert-based process intervention.
Decision Tradeoffs
| Option Considered | Pros | Cons | Decision |
|---|---|---|---|
| Supervised ML Classifier | Interpretable, works with limited labeled data, fast inference | Requires feature engineering, may miss subtle patterns | Selected — interpretable and effective with limited training data |
| Deep CNN | Automatic feature learning, potentially higher accuracy | Needs more training data, black-box predictions | Considered — more powerful but requires more labeled data than available |
| Rule-Based Thresholds | Simple to implement, no training needed | Too brittle for biological variation, high false positive rate | Rejected — too brittle for the natural variation in biological systems |
Problem
Cell culture bag monitoring was manual, subjective, and couldn't scale across production. Operators assessed culture health visually, leading to inconsistent evaluations and delayed interventions.
Approach
Built an ML system for end-to-end automated measurement and classification of cell culture health and performance trends from imaging data. The pipeline handles image preprocessing, feature extraction, and supervised classification with interpretable outputs.
Outcome
Automated monitoring replaced subjective manual assessment. Enabled consistent, scalable bioprocess quality control with reproducible health classifications across production batches.
Leadership Contribution
- Architecture: Designed the imaging-to-classification pipeline and selected supervised ML over deep learning for interpretability with limited data.
- Team: Coordinated with bioprocess scientists and quality engineers to define health classification criteria and validate model outputs.
- Governance: Established model validation protocols including cross-validation against expert assessments and ongoing drift monitoring.
- Outcomes: Tracked classification accuracy, measurement reproducibility, and reduction in subjective assessment variability.