Microsoft Azure AI Fundamentals (AI-900)Describe features of Natural Language Processing (NLP) workloads on AzureMedium
A research team is analyzing a vast archive of historical documents, many of which are handwritten or scanned images of old printed texts. They need to convert these documents into a machine-readable format to enable search and further NLP analysis like Named Entity Recognition. Which Azure AI service component is essential for this initial step?
- AText Analytics service
- BSpeech service
- CTranslator service
- DAzure AI Vision (OCR)
Show answer & explanationAnswer & explanation
Correct answer: D. Azure AI Vision (OCR)
Azure AI Vision, specifically its Optical Character Recognition (OCR) capability, is designed to extract text from images and scanned documents, including handwritten and old printed texts. This is a prerequisite for any further text-based NLP analysis on such documents.
Why the other options are wrong
- A. Text Analytics performs NLP tasks on existing text, but doesn't extract text from images.
- B. Speech service converts spoken audio to text, not text from images.
- C. Translator service translates text between languages, not extracts from images.
Optical Character Recognition (OCR)
The process of converting different types of documents, such as scanned paper documents, PDFs, or images, into editable and searchable data.
- Extracts text from images.
- Enables further text analysis on visual documents.
- Supports various fonts, languages, and even handwriting.
Memory trick: OCR Opens Content for Reading