---
convoy: improve-scan-card-detection
brief_number: 2
depends_on: [1]
recommended_model: composer-2.5-fast
model_tier: fast
files:
  - lib/scanner-card-identify.js
  - lib/use-camera-scanner.js
  - components/scanner/ScannerCamera.js
---

# Brief 2: Wire warped capture into identify + overlay a11y

## Goal

Use perspective-corrected crops for L1/L2 identify; keep overlay on
axis-aligned bounds; add live-region label on detection brackets.

## Acceptance criteria

- [ ] `identifyTrackedCardCapture` passes `cardTracker.corners` to capture
- [ ] `captureCardRegionFromVideo` warps when corners present, else fallback
- [ ] `use-camera-scanner.js` comment no longer claims OpenCV
- [ ] `DetectionFrame` exposes `role="status"` + `aria-label`