Annotation strategies for OCR, form extraction, table recognition, and intelligent document processing (IDP) applications.
Document AI Annotation Types
- Text Regions - Bounding boxes around text blocks, paragraphs, lines
- Key-Value Pairs - Link field labels to their extracted values
- Table Structure - Row/column detection and cell content extraction
- Document Classification - Invoice, receipt, contract, form type labels
- Handwriting Recognition - Ground truth for handwritten text
Handling Document Variations
Documents come in countless layouts and formats. Create template-based annotation workflows for common document types, with guidelines for handling variations:
- Define fallback rules for unexpected layouts
- Handle multi-page documents consistently
- Account for scan quality variations