Path: Multimodal & physical AI
Review documents and OCR
Check transcription, reading order, tables, and unclear fields without silently inventing text.
- Starting level
- New learner
- Time
- 22 minutes
- Public lesson guide
- EN + हिंदी
You will learn to
Correct OCR while preserving reading order and uncertain characters.
Why this matters
One invented digit or misplaced table cell can make a clean-looking dataset unusable.
Three things to remember
- Transcribe what is visible, not what seems likely.
- Keep headings, rows, and columns in order.
- Escalate illegible fields using the task convention.
See one example
Task
Review a stamped invoice total.
Weak approach
Fill the hidden digit using the subtotal.
Stronger approach
Mark the digit unclear, preserve visible characters, and send the exact crop for review.
Why the stronger approach works
The reviewer protects source fidelity instead of silently reconciling the document.
Make something yourself
Create a four-row OCR checklist for text, layout, tables, and uncertainty.
A useful starting pointAdd one example of when an item must be escalated.
Practise this lessonRead further
The source is optional. The complete teaching and practice are available inside AI2Bharat.
Read the primary or official source: Bhashini