Major rewrite of reconstruction rendering:
- Page split into vertical sections (content/box) around box boundaries
- Content sections: uniform row height = (last_row - first_row) / (n-1)
- Box sections: rows evenly distributed within box height
- Content rows positioned absolutely at original y-coordinates
- Font size derived from row height (55% of row height)
- Multi-line cells (bullets) get expanded height with indentation
- Boxes render at exact bbox position with colored border
- Preparation for unified grid where boxes become part of main grid
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replace manual word_box positioning (wild/unsnapped) with the
server-rendered words-overlay image from the OCR step endpoint.
This shows the same cleanly snapped red letters as the OCR step.
Endpoint: /sessions/{id}/image/words-overlay
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Font: use font_size_suggestion_px * scale directly (removed 0.85 factor)
- Row height: calculate from row-to-row spacing (y_min of next row
minus y_min of current row) instead of text height (y_max - y_min).
This produces correct line spacing matching the original layout.
- Multi-line cells: height multiplied by line count
Content zone should now span from ~250 to ~2050 matching the original.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Left panel: Original scan + OCR word overlay (red text at exact
word_box positions) + coordinate grid
Right panel: Reconstructed layout + same coordinate grid
Features:
- Coordinate grid toggle with 50/100/200px spacing options
- Grid lines labeled with pixel coordinates in original image space
- Both panels share the same scale for direct visual comparison
- OCR overlay shows detected text in red mono font at original positions
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
New pipeline step showing the reconstructed page with all zones
positioned at their original coordinates:
- Content zones with vocabulary grid cells
- Box zones with colored borders (from structure detection)
- Colspan cells rendered across multiple columns
- Multi-line cells (bullets) with pre-wrap whitespace
- Toggle to overlay original scan image at 15% opacity
- Proportionally scaled to viewport width
- Pure CSS positioning (no canvas/Fabric.js)
Pipeline: 14 steps (0-13), Ground Truth moved to Step 13.
Added colspan field to GridEditorCell type.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Auto-build was triggering on every grid.zones.length change, which
happens on every rebuild (zone indices increment). Now uses a ref
to ensure auto-build fires only once. Also removed boxZones.length===0
condition that could trigger unnecessary builds.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Use box_bg_hex for border color (from Step 7 structure detection)
- Numbered color badges per box
- Show color name in box header
- Add box_bg_color/box_bg_hex to GridZone type
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
GridTable expects zone (singular), onSelectCell, onCellTextChange,
onToggleColumnBold, onToggleRowHeader, onNavigate — not the
incorrect prop names from the first version.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
New pipeline step between Gutter Repair and Ground Truth that processes
embedded boxes (grammar tips, exercises) independently from the main grid.
Backend:
- cv_box_layout.py: classify_box_layout() detects flowing/columnar/
bullet_list/header_only layout types per box
- build_box_zone_grid(): layout-aware grid building (single-column for
flowing text, independent columns for tabular content)
- POST /sessions/{id}/build-box-grids endpoint with SmartSpellChecker
- Layout type overridable per box via request body
Frontend:
- StepBoxGridReview.tsx: shows each box with cropped image + editable
GridTable. Layout type dropdown per box. Auto-builds on first load.
- Auto-skip when no boxes detected on page
- Pipeline steps updated: 13 steps (0-12), Ground Truth moved to 12
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The Grid Build step was showing word_result.grid_shape (from the initial
OCR word clustering, often just 1 column) instead of the grid-editor
summary (zone-based, with correct column/row/cell counts). Now reads
summary.total_rows/total_columns/total_cells from the grid-editor result.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Extracts page_number from grid_editor_result when opening a session
and displays it as "S. 233" badge in the SessionHeader, next to the
category and GT badges.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The GT badge was only shown on ungrouped SessionRow items. Now also
visible on document group rows (e.g. "GT 1/2") and individual pages
within expanded groups.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- StepGroundTruth now shows the split view (original image + table)
so the user can verify the final result before marking as GT
- Backend session list now returns is_ground_truth flag
- SessionList shows amber "GT" badge for marked sessions
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Lower min word length from 3→2 for hyphen-join candidates so fragments
like "ve" (from "ver-künden") are no longer skipped
- Return all spellchecker candidates instead of just top-1, so user can
pick the correct form (e.g. "stammeln" vs "stammelt")
- Frontend shows clickable alternative buttons for spell_fix suggestions
- Backend accepts text_overrides in apply endpoint for user-selected alternatives
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
New step "Wortkorrektur" between Grid-Review and Ground Truth that detects
and fixes words truncated or blurred at the book gutter (binding area) of
double-page scans. Uses pyspellchecker (DE+EN) for validation.
Two repair strategies:
- hyphen_join: words split across rows with missing chars (ve + künden → verkünden)
- spell_fix: garbled trailing chars from gutter blur (stammeli → stammeln)
Interactive frontend with per-suggestion accept/reject and batch controls.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Page-split now creates independent sessions that appear directly in
the session list. After split, the UI switches to the first child
session. BoxSessionTabs, sub-session state, and parent-child tracking
removed from Kombi code. Legacy ocr-overlay still uses BoxSessionTabs.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
StepPageSplit now:
- Auto-calls POST /page-split on step entry
- Shows oriented image + detection result
- If double page: creates sub-sessions named "Title — S. 1/2"
- If single page: green badge "keine Trennung noetig"
- Manual "Weiter" button (no auto-advance)
Also:
- StepOrientation wrapper simplified (no page-split in orientation)
- StepUpload passes name back via onUploaded(sid, name)
- page.tsx: after page-split "Weiter" switches to first sub-session
- useKombiPipeline exposes setSessionName
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
StepUpload now has 3 phases:
1. File selection: drop zone / file picker → shows preview
2. Review: title input, category, file info → "Hochladen" button
3. Uploaded: shows session image → "Weiter" button
No more auto-advance after upload. User controls every step.
openSession() removed from onUploaded callback to prevent
step-reset race condition.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Phase 1 of the clean architecture refactor: Replaces the 751-line ocr-overlay
monolith with a modular pipeline. Each step gets its own component file.
Frontend: /ai/ocr-kombi route with 11 steps (Upload, Orientation, PageSplit,
Deskew, Dewarp, ContentCrop, OCR, Structure, GridBuild, GridReview, GroundTruth).
Session list supports document grouping for multi-page uploads.
Backend: New ocr_kombi/ module with multi-page PDF upload (splits PDF into N
sessions with shared document_group_id). DB migration adds document_group_id
and page_number columns.
Old /ai/ocr-overlay remains fully functional for A/B testing.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
