Microsoft Certified: Azure AI Engineer AssociateImplement natural language processing solutionsEasy
A research institution is analyzing a large collection of historical documents, many of which are scanned images of handwritten texts. The institution needs to convert these images into machine-readable text to enable keyword searching and further NLP analysis. Which Azure AI service feature is required for this initial conversion step?
- AAzure AI Language (Language Detection)
- BAzure AI Vision (Optical Character Recognition - OCR)
- CAzure AI Speech (Speech-to-Text)
- DAzure AI Language (Named Entity Recognition)
Show answer & explanationAnswer & explanation
Correct answer: B. Azure AI Vision (Optical Character Recognition - OCR)
The task involves converting 'scanned images of handwritten texts' into 'machine-readable text'. This specific process is known as Optical Character Recognition (OCR), which is a core capability of Azure AI Vision. It extracts text from images, making it searchable and analyzable by other NLP services.
Why the other options are wrong
- A. Language Detection identifies the language of existing text, not converts images to text.
- C. Speech-to-Text converts spoken audio into text, not images.
- D. Named Entity Recognition extracts entities from existing text, it does not convert images to text.
Optical Character Recognition (OCR)
The process of converting images of text (typewritten, printed, or handwritten) into machine-encoded text, allowing it to be searched, edited, and used for data processing.
- Extracts text from images.
- Supports various languages and fonts/handwriting styles.
- Essential for digitizing documents and enabling text analysis on visual content.
Memory trick: OCR Makes Images Readable.