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Optical Character Recognition (OCR) technology is widely used to extract text from images of documents, facilitating efficient digitization and data retrieval. However, merely extracting text is insufficient when dealing with complex…

Despite significant advances in document understanding, determining the correct orientation of scanned or photographed documents remains a critical pre-processing step in the real world settings. Accurate rotation correction is essential…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Suranjan Goswami , Abhinav Ravi , Raja Kolla , Ali Faraz , Shaharukh Khan , Akash , Chandra Khatri , Shubham Agarwal

We explore how multimodal Large Language Models (mLLMs) can help researchers transcribe historical documents, extract relevant historical information, and construct datasets from historical sources. Specifically, we investigate the…

Computation and Language · Computer Science 2025-04-02 Gavin Greif , Niclas Griesshaber , Robin Greif

Despite significant advancements in Large Vision Language Models (LVLMs), a gap remains, particularly regarding their interpretability and how they locate and interpret textual information within images. In this paper, we explore various…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Ingeol Baek , Hwan Chang , Sunghyun Ryu , Hwanhee Lee

This paper introduces an open-source benchmark for evaluating Vision-Language Models (VLMs) on Optical Character Recognition (OCR) tasks in dynamic video environments. We present a curated dataset containing 1,477 manually annotated frames…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Sankalp Nagaonkar , Augustya Sharma , Ashish Choithani , Ashutosh Trivedi

This paper presents a comprehensive evaluation of the Optical Character Recognition (OCR) capabilities of the recently released GPT-4V(ision), a Large Multimodal Model (LMM). We assess the model's performance across a range of OCR tasks,…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Yongxin Shi , Dezhi Peng , Wenhui Liao , Zening Lin , Xinhong Chen , Chongyu Liu , Yuyi Zhang , Lianwen Jin

Digital humanities scholars increasingly use Large Language Models for historical document digitization, yet lack appropriate evaluation frameworks for LLM-based OCR. Traditional metrics fail to capture temporal biases and period-specific…

Computer Vision and Pattern Recognition · Computer Science 2025-10-09 Maria Levchenko

While OCR has been used in various applications, its output is not always accurate, leading to misfit words. This research work focuses on improving the optical character recognition (OCR) with ML techniques with integration of OCR with…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Abhishek Bamotra , Phani Krishna Uppala

Form understanding depends on both textual contents and organizational structure. Although modern OCR performs well, it is still challenging to realize general form understanding because forms are commonly used and of various formats. The…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Zilong Wang , Mingjie Zhan , Xuebo Liu , Ding Liang

Interest is increasing among political scientists in leveraging the extensive information available in images. However, the challenge of interpreting these images lies in the need for specialized knowledge in computer vision and access to…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Yu Wang

Large Language Models (LLMs) have demonstrated remarkable capabilities in text comprehension, but their ability to process complex, hierarchical tabular data remains underexplored. We present a novel approach to extracting structured data…

Computation and Language · Computer Science 2025-11-25 Vikram Aggarwal , Jay Kulkarni , Aditi Mascarenhas , Aakriti Narang , Siddarth Raman , Ajay Shah , Susan Thomas

Large Language Models (LLMs) have achieved remarkable success in source code understanding, yet as software systems grow in scale, computational efficiency has become a critical bottleneck. Currently, these models rely on a text-based…

Computation and Language · Computer Science 2026-04-29 Yuling Shi , Chaoxiang Xie , Zhensu Sun , Yeheng Chen , Chenxu Zhang , Longfei Yun , Chengcheng Wan , Hongyu Zhang , David Lo , Xiaodong Gu

GLM-OCR is an efficient 0.9B-parameter compact multimodal model designed for real-world document understanding. It combines a 0.4B-parameter CogViT visual encoder with a 0.5B-parameter GLM language decoder, achieving a strong balance…

Large language models (LLMs) are becoming useful in many domains due to their impressive abilities that arise from large training datasets and large model sizes. However, research on LLM-based approaches to document inconsistency detection…

Computation and Language · Computer Science 2026-04-09 Nelvin Tan , Yaowen Zhang , James Asikin Cheung , Fusheng Liu , Yu-Ching Shih , Dong Yang

Optical character recognition (OCR) and multilingual text understanding remain major failure modes of multimodal large language models (MLLMs), particularly in real-world images containing cluttered layouts, small fonts, blur, occlusion,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Qinwu Xu , Yifan Jiang , Haoyu Ren

Optical Character Recognition (OCR), the task of extracting textual information from scanned documents is a vital and broadly used technology for digitizing and indexing physical documents. Existing technologies perform well for clean…

Computer Vision and Pattern Recognition · Computer Science 2022-05-18 Daniel Rotman , Ophir Azulai , Inbar Shapira , Yevgeny Burshtein , Udi Barzelay

Modern astronomical surveys deliver immense volumes of transient detections, yet distinguishing real astrophysical signals (for example, explosive events) from bogus imaging artefacts remains a challenge. Convolutional neural networks are…

Instrumentation and Methods for Astrophysics · Physics 2025-10-09 Fiorenzo Stoppa , Turan Bulmus , Steven Bloemen , Stephen J. Smartt , Paul J. Groot , Paul Vreeswijk , Ken W. Smith

Document parsing is a core task in document intelligence, supporting applications such as information extraction, retrieval-augmented generation, and automated document analysis. However, real-world documents often feature complex layouts…

Multimodal Large Language Models (MLLMs) have achieved considerable accuracy in Optical Character Recognition (OCR) from static images. However, their efficacy in video OCR is significantly diminished due to factors such as motion blur,…

Information extraction (IE) from unstructured documents remains a critical challenge in data processing pipelines. Traditional optical character recognition (OCR) methods and conventional parsing engines demonstrate limited effectiveness…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Aditya Parikh