28 lines
786 B
Markdown
28 lines
786 B
Markdown
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---
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convoy: improve-scan-card-detection
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brief_number: 1
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depends_on: []
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recommended_model: composer-2.5-fast
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model_tier: fast
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files:
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- lib/scanner-card-warp.js
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- lib/scanner-card-detection.js
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- test/lib/scanner-card-warp.test.js
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- test/lib/scanner-card-detection.test.js
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---
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# Brief 1: Quad corner detection + perspective warp
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## Goal
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Replace axis-only Sobel box hunt with four-corner refinement and a
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homography warp helper that produces rectified card JPEGs.
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## Acceptance criteria
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- [ ] `lib/scanner-card-warp.js` exports `orderQuadCorners`,
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`computeHomography`, `warpCardCaptureFromVideo`
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- [ ] `detectCardShapesFromFrame` returns `corners` in video space
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- [ ] Tracker merge preserves `corners` on tracked cards
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- [ ] Unit tests for warp math + corner refinement
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