Digitization of Document and Information Extraction using OCR
This addresses the need for better document digitization and information extraction, particularly for handling mixed scanned and digital formats, though it appears incremental as it builds on existing OCR and LLM technologies.
The paper tackles the problem of extracting accurate information from documents by combining OCR techniques with Large Language Models to produce structured outputs, showing significant improvements in flexibility and semantic precision over traditional methods.
Retrieving accurate details from documents is a crucial task, especially when handling a combination of scanned images and native digital formats. This document presents a combined framework for text extraction that merges Optical Character Recognition (OCR) techniques with Large Language Models (LLMs) to deliver structured outputs enriched by contextual understanding and confidence indicators. Scanned files are processed using OCR engines, while digital files are interpreted through layout-aware libraries. The extracted raw text is subsequently analyzed by an LLM to identify key-value pairs and resolve ambiguities. A comparative analysis of different OCR tools is presented to evaluate their effectiveness concerning accuracy, layout recognition, and processing speed. The approach demonstrates significant improvements over traditional rule-based and template-based methods, offering enhanced flexibility and semantic precision across different document categories