AHFIDAILabs/CervixVisionAI

CervixVisionAI is an Android-based application designed to assist frontline healthcare workers in low resource-settings perform highly accurate and accessible cervical cancer screening. # CervixVisionAI An AI-powered, smartphone-based screening tool that puts specialist-level cervical cancer detection into the hands of frontline health workers in low-resource settings. Cervical cancer is preventable, yet kills over 350,000 women a year — 90% of them in low- and middle-income countries, where Visual Inspection with Acetic Acid (VIA) remains the dominant screening method despite its low sensitivity and high inter-observer variability. CervixVisionAI closes that gap with an ensemble deep-learning model that analyzes VIA images on-device and returns a risk score, lesion classification, and explainable AI (Grad-CAM) output a health worker can act on immediately. ## How it fits together ``` Healthcare Worker (mobile app) │ capture image, quality check ▼ Backend API Gateway (Node.js/Express + Socket.io) │ proxies analysis requests, persists results, pushes live updates ▼ AI Engine (FastAPI + ONNX ensemble: Swin Transformer + EfficientNet-B3/ConvNeXt) │ risk_score, lesion_class, xai_output (Grad-CAM) ▼ Backend → MongoDB (results) + Socket.io (real-time notification to the app) ▼ Clinical decision support, treatment recommendation, EMR/HIS hand-off ``` The mobile app never talks to the AI engine directly — the backend acts as the API gateway, routing analysis requests, persisting results in MongoDB, and emitting Socket.io events back to the app in real time. ## Repository layout | Path | Service | Stack | |---|---|---| | `frontend/` | Healthcare worker mobile app | React Native (Expo) — see frontend/README.md | | `backend/` | API gateway, auth, MongoDB persistence, Socket.io | Node.js / Express / Mongoose — see backend/README.md | | `ai_engine/` | Ensemble inference service (ONNX), training pipeline | Python / FastAPI / PyTorch — see ai_engine/README.md and ai_engine/TRAINING.md | | `nginx/` | Reverse proxy / TLS termination configs (dev + prod) | nginx | | `docker-compose.yml` / `docker-compose.prod.yml` | Local and production orchestration | Doc …