59206a6ab8
Changes: - Replace PP-Structure 7-slider parameter UI with simple 3-option layout model selector - Add layout model mapping: chinese (PP-DocLayout-S), default (PubLayNet), cdla - Add LayoutModelSelector component and zh-TW translations - Fix "default" model behavior with sentinel value for PubLayNet - Add gap filling service for OCR track coverage improvement - Add PP-Structure debug utilities - Archive completed/incomplete proposals: - add-ocr-track-gap-filling (complete) - fix-ocr-track-table-rendering (incomplete) - simplify-ppstructure-model-selection (22/25 tasks) - Add new layout model tests, archive old PP-Structure param tests - Update OpenSpec ocr-processing spec with layout model requirements 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
29 lines
1.1 KiB
Markdown
29 lines
1.1 KiB
Markdown
# Change: Fix OCR Track Table Empty Columns and Alignment
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## Why
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PP-Structure 生成的表格經常包含空白欄位（所有 row 該欄皆為空/空白），導致轉換後的 UnifiedDocument 表格出現空欄與欄位錯位。目前 OCR Track 直接使用原始資料，未進行清理，影響 PDF/JSON/Markdown 輸出品質。
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## What Changes
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- 新增 `trim_empty_columns()` 函數，清理 OCR Track 表格的空欄
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- 在 `_convert_table_data` 入口調用清洗邏輯，確保 TableData 乾淨
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- 處理 col_span 重算：若 span 跨過被移除欄位，縮小 span
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- 更新 columns/cols 數值、調整各 cell 的 col 索引
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- 可選：依 bbox x0 進行欄對齊排序
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## Impact
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- Affected specs: `ocr-processing`
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- Affected code:
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- `backend/app/services/ocr_to_unified_converter.py` (主要修改)
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- 不影響 Direct/HYBRID 路徑
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- PDF/JSON/Markdown 輸出將更乾淨
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## Constraints
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- 保持表格 bbox、頁面座標不變
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- 不修改 Direct/HYBRID 路徑
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- 只移除「所有行皆空」的欄；若表頭空但數據有值，不應移除
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- 保留原 bbox，避免 PDF 版面漂移
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