OpenCV / ArUco Developer Needed – Dental X-Ray Camera Alignment & Image Quality Risk Prototype

We are looking for an experienced Python/OpenCV developer to build a working proof-of-concept for a dental X-ray positioning system. How it should work: 1. A small USB camera is mounted externally on the dental X-ray tube. 2. ArUco or AprilTag markers are attached to the external positioning ring of our existing dental X-ray sensor holder. 3. The camera detects the markers and the software calculates the 3D position and angular deviation between the X-ray tube and the positioning ring. 4. The application displays live alignment measurements and visual guidance (red/green indicators and suggested corrections). Important feature – estimated risk of a poor X-ray image: We also want the software to display an estimated risk percentage based on the measured angular deviation. For example: * Angular deviation: −7° * Estimated risk of a poor X-ray image: 85% * Recommendation: Adjust the X-ray tube position The 85% is an illustrative example only. For the first prototype, risk values may be calculated from test data or clearly labelled simulated data. We do not expect a clinically validated AI prediction model at this stage. Image-quality feedback: After a test X-ray exposure, the operator should be able to select: * Image acceptable * Image unacceptable The software should save the measured angle, alignment data and feedback in a database (CSV or SQLite is sufficient). Required deliverables: * Working Python/OpenCV application * Live USB camera and marker detection * Camera calibration and basic 3D pose estimation * Alignment measurement and visual guidance * Demonstration risk-percentage display * Image-quality feedback and data storage * Complete source code and setup instructions * Short demonstration video The system will initially be tested on a dental phantom, not used for clinical decisions. Please include in your proposal: 1. Have you worked with ArUco/AprilTag markers and 3D pose estimation? 2. Can you demonstrate a similar project? 3. What is your fixed price for this prototype? 4. How long would development take? 5. Which USB camera would you recommend? We are open to proposals and would like to start with a simple, affordable prototype.