Commit Graph

16 Commits

Author SHA1 Message Date
Benjamin Admin
682b306e51 Use grid-build zones for vocab extraction (4-column detection)
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The initial build_grid_from_words() under-clusters to 1 column while
_build_grid_core() correctly finds 4 columns (marker, EN, DE, example).
Now extracts vocab from grid zones directly, with heuristic to skip
narrow marker columns. Falls back to original cells if zones fail.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-11 01:17:40 +02:00
Benjamin Admin
3e3116d2fd Fix vocab extraction: show all columns for generic layouts
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When columns can't be classified as EN/DE, map them by position:
col 0 → english, col 1 → german, col 2+ → example. This ensures
vocabulary pages are always extracted, even without explicit
language classification. Classified pages still use the proper
EN/DE/example mapping.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-11 01:11:40 +02:00
Benjamin Admin
9a8ce69782 Fix vocab extraction: use original column types for EN/DE classification
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The grid-build zones use generic column types, losing the EN/DE
classification from build_grid_from_words(). Now extracts improved
cells from grid zones but classifies them using the original
columns_meta which has the correct column_en/column_de types.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-11 01:07:49 +02:00
Benjamin Admin
66f8a7b708 Improve vocab-worksheet UX: better status messages + error details
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- Change "PDF wird analysiert..." to "PDF wird hochgeladen..." (accurate)
- Switch to pages tab immediately after upload (before thumbnails load)
- Show progressive status: "5 Seiten erkannt. Vorschau wird geladen..."
- Show backend error detail instead of generic "HTTP 404"
- Backend returns helpful message when session not in memory after restart

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-11 00:55:56 +02:00
Benjamin Admin
3b78baf37f Replace old OCR pipeline with Kombi pipeline + add IPA/syllable toggles
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Backend:
- _run_ocr_pipeline_for_page() now runs the full Kombi pipeline:
  orientation → deskew → dewarp → content crop → dual-engine OCR
  (RapidOCR + Tesseract merge) → _build_grid_core() with pipe-autocorrect,
  word-gap merge, dictionary detection
- Accepts ipa_mode and syllable_mode query params on process-single-page
- Pipeline sessions are visible in admin OCR Kombi UI for debugging

Frontend (vocab-worksheet):
- New "Anzeigeoptionen" section with IPA and syllable toggles
- Settings are passed to process-single-page as query parameters

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-11 00:43:42 +02:00
Benjamin Admin
e1ae5d5fa9 fix: Edge-Gaps in _split_broad_columns ignorieren + return-Tuple bei leerem Ergebnis
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Gaps die den Spaltenrand beruehren (Margins) werden jetzt ausgeschlossen,
nur interne Gaps werden als Split-Kandidaten betrachtet. Behebt das
Problem dass trailing whitespace faelschlich als groesster Gap gewaehlt
wurde. Early-return in _run_ocr_pipeline_for_page gibt jetzt korrekt
([], rotation) statt [] zurueck.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 22:16:29 +01:00
Benjamin Admin
4e8ea77140 fix: leere Spalten als strukturell behandeln + 2-Spalten-Layout korrekt labeln
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Spalten mit <=2 Woertern und <15% Breite werden jetzt als column_marker
statt als content-Spalte klassifiziert. Bei 2 breiten Content-Spalten
wird die rechte als column_example statt column_de gelabelt, da die
linke Spalte EN+DE kombiniert enthaelt.
OSD-Zoom von 1.0 auf 2.0 erhoeht fuer zuverlaessigere Orientierungserkennung.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 19:35:21 +01:00
Benjamin Admin
e8ba5ec073 fix: Orientierungserkennung beim PDF-Upload statt erst bei OCR
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Rotation wird jetzt in upload_pdf_get_info() erkannt, damit Thumbnails
bei der Seitenauswahl bereits richtig herum angezeigt werden.
Debug-Logging fuer _split_broad_columns hinzugefuegt.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 19:11:45 +01:00
Benjamin Admin
02631dc4e0 feat: breite Spalten per Word-Gap splitten + gedrehte Scans im Frontend anzeigen
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_split_broad_columns() erkennt EN/DE-Gemisch in breiten Spalten via
Word-Coverage-Analyse und trennt sie am groessten Luecken-Gap.
Thumbnails und Page-Images werden serverseitig per fitz rotiert,
Frontend laedt Thumbnails nach OCR-Processing neu.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 18:16:32 +01:00
Benjamin Admin
a5635e0c43 feat: automatische Orientierungserkennung fuer umgedrehte Scans
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Tesseract OSD erkennt 0/90/180/270° Rotation und korrigiert
automatisch vor dem Deskew. Loest das Problem mit Buchscannern,
bei denen jede 2. Seite auf dem Kopf steht.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 17:26:21 +01:00
Benjamin Admin
7a1bd5e82d refactor: positional_column_regions auch in OCR Pipeline verwenden
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Shared Funktion positional_column_regions() in cv_vocab_pipeline.py,
wird jetzt von beiden Pfaden (Vocab-Worksheet + OCR Pipeline Admin)
genutzt. classify_column_types() bleibt als Legacy erhalten.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 17:20:51 +01:00
Benjamin Admin
a5df2b6e15 fix: Spaltenklassifikation im Vocab-Worksheet durch positionsbasierte Zuordnung ersetzen
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Sprachbasiertes Scoring (classify_column_types) verursachte vertauschte
Spalten auf Seite 3 bei Beispielsaetzen mit vielen englischen Funktionswoertern.
Neue _positional_column_regions() ordnet Spalten rein geometrisch (links→rechts)
zu. OCR Pipeline Admin bleibt unveraendert.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 17:07:11 +01:00
Benjamin Admin
d39d249daa feat: add pass 3 text-line regression to deskew pipeline
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After iterative projection (pass 1) and word-alignment (pass 2), a third
pass uses Tesseract word positions + linear regression per text line to
measure and correct residual rotation. This catches cases where passes 1-2
leave significant slope (e.g. 1.7° residual on heavily skewed scans).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-05 17:53:11 +01:00
Benjamin Admin
538d5c732e feat: two-pass deskew with wider angle range and residual correction
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- Increase iterative deskew coarse_range from ±2° to ±5° to handle
  heavily skewed scans
- New deskew_two_pass(): runs iterative projection first, then
  word-alignment on the corrected image to detect/fix residual skew
  (applied when residual ≥ 0.3°)
- OCR pipeline API auto_deskew now uses deskew_two_pass by default
- Vocab worksheet _run_ocr_pipeline_for_page uses deskew_two_pass
- Deskew result now includes angle_residual and two_pass_debug

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-05 17:34:57 +01:00
Benjamin Admin
b7ae36e92b feat: use OCR pipeline instead of LLM vision for vocab worksheet extraction
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process-single-page now runs the full CV pipeline (deskew → dewarp → columns →
rows → cell-first OCR v2 → LLM review) for much better extraction quality.
Falls back to LLM vision if pipeline imports are unavailable.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-05 15:35:44 +01:00
Benjamin Boenisch
5a31f52310 Initial commit: breakpilot-lehrer - Lehrer KI Platform
Services: Admin-Lehrer, Backend-Lehrer, Studio v2, Website,
Klausur-Service, School-Service, Voice-Service, Geo-Service,
BreakPilot Drive, Agent-Core

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-11 23:47:26 +01:00