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This study investigates the potential of Large Language Models (LLMs), particularly GPT-4o, for Optical Character Recognition (OCR) in low-resource scripts such as Urdu, Albanian, and Tajik, with English serving as a benchmark. Using a…

Machine Learning · Computer Science 2024-12-23 Muhammad Abdullah Sohail , Salaar Masood , Hamza Iqbal

Image-Text Retrieval (ITR) systems are central to multimodal information access, with Vision-Language Models (VLMs) showing strong performance on standard benchmarks. However, these benchmarks predominantly rely on coarse-grained…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Mariya Hendriksen , Shuo Zhang , Ridho Reinanda , Mohamed Yahya , Edgar Meij , Maarten de Rijke

PDF documents have the potential to provide trillions of novel, high-quality tokens for training language models. However, these documents come in a diversity of types with differing formats and visual layouts that pose a challenge when…

Real world deployments often expose modern object recognition models to domain shifts that precipitate a severe drop in accuracy. Such shifts encompass (i) variations in low level image statistics, (ii) changes in object pose and viewpoint,…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Junghyun Park , Tuan Anh Nguyen , Dugki Min

Optical character recognition (OCR) is a widely used pattern recognition application in numerous domains. There are several feature-rich, general-purpose OCR solutions available for consumers, which can provide moderate to excellent…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Ayantha Randika , Nilanjan Ray , Xiao Xiao , Allegra Latimer

Retrieval-Augmented Generation (RAG) has become a popular technique for enhancing the reliability and utility of Large Language Models (LLMs) by grounding responses in external documents. Traditional RAG systems rely on Optical Character…

Computer Vision and Pattern Recognition · Computer Science 2025-05-12 Alexander Most , Joseph Winjum , Ayan Biswas , Shawn Jones , Nishath Rajiv Ranasinghe , Dan O'Malley , Manish Bhattarai

Document extraction is a core component of digital workflows, yet existing vision-language models (VLMs) predominantly favor high-resource languages. Thai presents additional challenges due to script complexity from non-latin letters, the…

Computation and Language · Computer Science 2026-01-22 Surapon Nonesung , Natapong Nitarach , Teetouch Jaknamon , Pittawat Taveekitworachai , Kunat Pipatanakul

In this paper, we rethink sparse lexical representations for image retrieval. By utilizing multi-modal large language models (M-LLMs) that support visual prompting, we can extract image features and convert them into textual data, enabling…

Computer Vision and Pattern Recognition · Computer Science 2024-08-30 Kengo Nakata , Daisuke Miyashita , Youyang Ng , Yasuto Hoshi , Jun Deguchi

Recent advancements in deep neural networks have markedly enhanced the performance of computer vision tasks, yet the specialized nature of these networks often necessitates extensive data and high computational power. Addressing these…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Jiayou Chao , Wei Zhu

Large language models (LLMs) are increasingly utilized to assist in scientific and academic writing, helping authors enhance the coherence of their articles. Previous studies have highlighted stereotypes and biases present in LLM outputs,…

Computation and Language · Computer Science 2024-07-01 Naseela Pervez , Alexander J. Titus

We investigate how large language models (LLMs) fail when tabular data in an otherwise canonical representation is subjected to semantic and structural distortions. Our findings reveal that LLMs lack an inherent ability to detect and…

Artificial Intelligence · Computer Science 2026-01-09 Avik Dutta , Harshit Nigam , Hosein Hasanbeig , Arjun Radhakrishna , Sumit Gulwani

While large language models (LLMs) demonstrate impressive capabilities, their reliance on parametric knowledge often leads to factual inaccuracies. Retrieval-Augmented Generation (RAG) mitigates this by leveraging external documents, yet…

Computation and Language · Computer Science 2025-10-07 Lingnan Xu , Chong Feng , Kaiyuan Zhang , Liu Zhengyong , Wenqiang Xu , Fanqing Meng

Document parsing is a fine-grained task where image resolution significantly impacts performance. While advanced research leveraging vision-language models benefits from high-resolution input to boost model performance, this often leads to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Cheng Cui , Ting Sun , Suyin Liang , Tingquan Gao , Zelun Zhang , Jiaxuan Liu , Xueqing Wang , Changda Zhou , Hongen Liu , Manhui Lin , Yue Zhang , Yubo Zhang , Jing Zhang , Jun Zhang , Xing Wei , Yi Liu , Dianhai Yu , Yanjun Ma

The maintenance, archiving and usage of the design drawings is cumbersome in physical form in different industries for longer period. It is hard to extract information by simple scanning of drawing sheets. Converting them to their digital…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Jesher Joshua M , Ragav V , Syed Ibrahim S P

This study outlines a comprehensive methodology for verifying medical documents, integrating advanced techniques in template extraction, comparison, and fraud detection. It begins with template extraction using sophisticated…

Computer Vision and Pattern Recognition · Computer Science 2023-11-22 Harshitha Yenigalla , Bommareddy Revanth Srinivasa Reddy , Batta Venkata Rahul , Nannapuraju Hemanth Raju

Document understanding refers to automatically extract, analyze and comprehend information from various types of digital documents, such as a web page. Existing Multi-model Large Language Models (MLLMs), including mPLUG-Owl, have…

Computation and Language · Computer Science 2023-07-07 Jiabo Ye , Anwen Hu , Haiyang Xu , Qinghao Ye , Ming Yan , Yuhao Dan , Chenlin Zhao , Guohai Xu , Chenliang Li , Junfeng Tian , Qian Qi , Ji Zhang , Fei Huang

Recent advances in reasoning-focused large language models (LLMs) mark a shift from general LLMs toward models designed for complex decision-making, a crucial aspect in medicine. However, their performance in specialized domains like…

The accuracy of OCR is usually affected by the quality of the input document image and different kinds of marred document images hamper the OCR results. Among these scenarios, the low-resolution image is a common and challenging case. In…

Computer Vision and Pattern Recognition · Computer Science 2019-11-26 Zhichao Fu , Yu Kong , Yingbin Zheng , Hao Ye , Wenxin Hu , Jing Yang , Liang He

Vision-Language Models (VLMs) have shown strong promise on Optical Character Recognition (OCR), yet the sheer number of visual tokens required to encode dense documents incurs prohibitive inference cost. Existing pruning methods rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Zihan Tang , Leqi Shen , Hui Chen , Ao Wang , Ben Wan , Yan Feng , Ke Zhang , Sicheng Zhao , Tongxuan Liu , Guiguang Ding

The biggest challenge in the field of image processing is to recognize documents both in printed and handwritten format. Optical Character Recognition OCR is a type of document image analysis where scanned digital image that contains either…

Computer Vision and Pattern Recognition · Computer Science 2016-12-05 Singh Vijendra , Nisha Vasudeva , Hem Jyotsana Parashar
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