cfe65158a3
- Enable PP-StructureV3's use_doc_orientation_classify feature - Detect rotation angle from doc_preprocessor_res.angle - Swap page dimensions (width <-> height) for 90°/270° rotations - Output PDF now correctly displays landscape-scanned content Also includes: - Archive completed openspec proposals - Add simplify-frontend-ocr-config proposal (pending) - Code cleanup and frontend simplification 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
58 lines
2.5 KiB
Markdown
58 lines
2.5 KiB
Markdown
# Tasks: Simple Text Positioning
|
|
|
|
## Phase 1: Core Implementation
|
|
|
|
- [x] Create `TextRegionRenderer` class in `app/services/text_region_renderer.py`
|
|
- [x] Implement `calculate_rotation()` from bbox quadrilateral
|
|
- [x] Implement `estimate_font_size()` from bbox height
|
|
- [x] Implement `render_text_region()` main method
|
|
- [x] Handle coordinate system transformation (OCR → PDF)
|
|
|
|
## Phase 2: Integration
|
|
|
|
- [x] Add `simple_text_positioning_enabled` config option
|
|
- [x] Modify `PDFGeneratorService._generate_ocr_track_pdf()` to use `TextRegionRenderer`
|
|
- [x] Ensure raw OCR regions are loaded correctly via `load_raw_ocr_regions()`
|
|
|
|
## Phase 3: Image/Chart/Formula Support
|
|
|
|
- [x] Add image element type detection (`figure`, `image`, `chart`, `seal`, `formula`)
|
|
- [x] Render image elements from UnifiedDocument to PDF
|
|
- [x] Handle image path resolution (result_dir, imgs/ subdirectory)
|
|
- [x] Coordinate transformation for image placement
|
|
|
|
## Phase 4: Text Straightening & Overlap Avoidance
|
|
|
|
- [x] Add rotation straightening threshold (default 10°)
|
|
- Small rotation angles (< 10°) are treated as 0° for clean output
|
|
- Only significant rotations (e.g., 90°) are preserved
|
|
- [x] Add IoA (Intersection over Area) overlap detection
|
|
- IoA threshold default 0.3 (30% overlap triggers skip)
|
|
- Text regions overlapping with images/charts are skipped
|
|
- [x] Collect exclusion zones from image elements
|
|
- [x] Pass exclusion zones to text renderer
|
|
|
|
## Phase 5: Chart Axis Label Deduplication
|
|
|
|
- [x] Add `is_axis_label()` method to detect axis labels
|
|
- Y-axis: Vertical text immediately left of chart
|
|
- X-axis: Horizontal text immediately below chart
|
|
- [x] Add `is_near_zone()` method for proximity checking
|
|
- [x] Position-aware deduplication in `render_text_region()`
|
|
- Collect texts inside zones + axis labels
|
|
- Skip matching text only if near zone or is axis label
|
|
- Preserve matching text far from zones (e.g., table values)
|
|
- [x] Test results:
|
|
- "Temperature, C" and "Syringe Thaw Time, Minutes" correctly skipped
|
|
- Table values like "10" at top of page correctly rendered
|
|
- Page 2: 128/148 text regions rendered (12 overlap + 8 dedupe)
|
|
|
|
## Phase 6: Testing
|
|
|
|
- [x] Test with scan.pdf task (064e2d67-338c-4e54-b005-204c3b76fe63)
|
|
- Page 2: Chart image rendered, axis labels deduplicated
|
|
- PDF is searchable and selectable
|
|
- Text is properly straightened (no skew artifacts)
|
|
- [ ] Compare output quality vs original scan visually
|
|
- [ ] Test with documents containing seals/formulas
|