How to use
- Print the ChArUco board (A4 page) and verify the 100 mm gap with a ruler.
- Print or cut a known-size rectangle (e.g. 400 × 600 mm) on a separate sheet, ideally on a calibrated plotter (T2).
- Place the ChArUco board in the same plane as the rectangle, near its centroid.
- Capture 5–8 photos from different angles around the rectangle.
- Trace each rectangle outline by hand, then click Run.
- The harness reports per-photo error (Phase 1 gate <2 mm) and fused error (Phase 2 gate <1 mm).
Synthetic mode (T1, no camera needed)
Generates ideal rectified mm-space rectangles with simulated noise to verify the fusion math is sound. This is a regression check, not a real-world accuracy test.
Real-photo mode
Uses your last capture session (from index.html). Trace the known rectangle in each photo, then run.