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feat(ocr-pipeline): add Step 5 word recognition (grid from columns × rows)

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Backend: build_word_grid() intersects column regions with content rows,
OCRs each cell with language-specific Tesseract, and returns vocabulary
entries with percent-based bounding boxes. New endpoints: POST /words,
GET /image/words-overlay, ground-truth save/retrieve for words.
Frontend: StepWordRecognition with overview + step-through labeling modes,
goToStep callback for row correction feedback loop.
MkDocs: OCR Pipeline documentation added.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Benjamin Admin
2026-02-28 02:18:29 +01:00
parent 47dc2e6f7a
commit 954103cdf2
9 changed files with 1429 additions and 21 deletions
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@@ -65,6 +65,7 @@ nav:
- BYOEH Architektur: services/klausur-service/BYOEH-Architecture.md
- BYOEH Developer Guide: services/klausur-service/BYOEH-Developer-Guide.md
- NiBiS Pipeline: services/klausur-service/NiBiS-Ingestion-Pipeline.md
- OCR Pipeline: services/klausur-service/OCR-Pipeline.md
- OCR Labeling: services/klausur-service/OCR-Labeling-Spec.md
- OCR Vergleich: services/klausur-service/OCR-Compare.md
- RAG Admin: services/klausur-service/RAG-Admin-Spec.md