# 2026-03-01 Session Notes

## OCR Pipeline
- Switched from Tesseract to OpenRouter vision API
- Backpressure issue: camera produces frames faster than API can process
- Solution: frame dropping with scene-gate (skip similar consecutive frames)

## Wearable HUD
- Testing 3-panel debug interface
- Camera feed, OCR overlay, and pipeline stats side-by-side
- Found that JPEG quality 70 is good balance of speed vs readability
