piizei/azure-ai-ocr

AI-driven automatic OCR

AI OCR with Azure

This project demonstrates 'autopilot' OCR with Azure Cognitive Services

Classic OCR models need training to extract structured information from documents. In this project I demonstrate how to use hybrid approach with LLM (multimodal) to get better results without any pre-training.

The project uses Azure Document Intelligence combined with GPT4 and GPT-Vision. Each of the tools have their strong points and the hybrid approach is better than any of them alone.

Notes:

• The document-intelligence needs to be using the markdown preview (limited regions).
• The openai model needs to be vision capable.

How to use

Run example projects in examples-* folder.

The examples need docker to run. Each folder has a script that you can execute to run the complete example. Each folder has also .env file that needs to be filled with your Azure service credentials.

Complete the .env files in each example folder before running.

Note: The powershell scripts don't work very well, the bash scripts are better...

Example 1

example 1 - Sample collection Extract process of water sample providing from an information flyer.

Example 2

example 2 - Complex tables Let's find some insurance products from a more complex table.

Notes on the examples

• I used https://bjdash.github.io/JSON-Schema-Builder/ to create the json-schemas in the example folders. If the keys in the json model are not self-explanatory, you should use description fields to tell the LLM model what you mean by each key to increase accuracy.

User interface

User interface is provided for testing purposes only. To run it locally, install

poetry install --with ui

then run ./ui.sh in the root folder. (env is picked from .env file in the root folder)

Develop

Install with poetry

poetry install