Automated Invoice Data Extraction: Using LLM and OCR

Fuente: arXiv
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Auteurs principaux: Khanchandani, Khushi, Thakur, Advait, Shetty, Akshita, Reddy, Chaitravi, Behera, Ritisa
Format: Preprint
Publié: 2025
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author Khanchandani, Khushi
Thakur, Advait
Shetty, Akshita
Reddy, Chaitravi
Behera, Ritisa
author_facet Khanchandani, Khushi
Thakur, Advait
Shetty, Akshita
Reddy, Chaitravi
Behera, Ritisa
contents Conventional Optical Character Recognition (OCR) systems are challenged by variant invoice layouts, handwritten text, and low-quality scans, which are often caused by strong template dependencies that restrict their flexibility across different document structures and layouts. Newer solutions utilize advanced deep learning models such as Convolutional Neural Networks (CNN) as well as Transformers, and domain-specific models for better layout analysis and accuracy across various sections over varied document types. Large Language Models (LLMs) have revolutionized extraction pipelines at their core with sophisticated entity recognition and semantic comprehension to support complex contextual relationship mapping without direct programming specification. Visual Named Entity Recognition (NER) capabilities permit extraction from invoice images with greater contextual sensitivity and much higher accuracy rates than older approaches. Existing industry best practices utilize hybrid architectures that blend OCR technology and LLM for maximum scalability and minimal human intervention. This work introduces a holistic Artificial Intelligence (AI) platform combining OCR, deep learning, LLMs, and graph analytics to achieve unprecedented extraction quality and consistency.
format Preprint
id arxiv_https___arxiv_org_abs_2511_05547
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Automated Invoice Data Extraction: Using LLM and OCR
Khanchandani, Khushi
Thakur, Advait
Shetty, Akshita
Reddy, Chaitravi
Behera, Ritisa
Computer Vision and Pattern Recognition
Artificial Intelligence
Conventional Optical Character Recognition (OCR) systems are challenged by variant invoice layouts, handwritten text, and low-quality scans, which are often caused by strong template dependencies that restrict their flexibility across different document structures and layouts. Newer solutions utilize advanced deep learning models such as Convolutional Neural Networks (CNN) as well as Transformers, and domain-specific models for better layout analysis and accuracy across various sections over varied document types. Large Language Models (LLMs) have revolutionized extraction pipelines at their core with sophisticated entity recognition and semantic comprehension to support complex contextual relationship mapping without direct programming specification. Visual Named Entity Recognition (NER) capabilities permit extraction from invoice images with greater contextual sensitivity and much higher accuracy rates than older approaches. Existing industry best practices utilize hybrid architectures that blend OCR technology and LLM for maximum scalability and minimal human intervention. This work introduces a holistic Artificial Intelligence (AI) platform combining OCR, deep learning, LLMs, and graph analytics to achieve unprecedented extraction quality and consistency.
title Automated Invoice Data Extraction: Using LLM and OCR
topic Computer Vision and Pattern Recognition
Artificial Intelligence
url https://arxiv.org/abs/2511.05547