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Chart understanding is crucial for deploying multimodal large language models (MLLMs) in real-world scenarios such as analyzing scientific papers and technical reports. Unlike natural images, charts pair a structured visual layout (spatial…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Zhuoming Liu , Xiaofeng Gao , Feiyang Niu , Qiaozi Gao , Liu Liu , Robinson Piramuthu

Charts are common in literature across various scientific fields, conveying rich information easily accessible to readers. Current chart-related tasks focus on either chart perception that extracts information from the visual charts, or…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Renqiu Xia , Haoyang Peng , Hancheng Ye , Mingsheng Li , Xiangchao Yan , Peng Ye , Botian Shi , Yu Qiao , Junchi Yan , Bo Zhang

Advances in deep learning (DL) have resulted in impressive accuracy in some medical image classification tasks, but often deep models lack interpretability. The ability of these models to explain their decisions is important for fostering…

Abstract--- Table detection and extraction has been studied in the context of documents like reports, where tables are clearly outlined and stand out from the document structure visually. We study this topic in a rather more challenging…

Information Retrieval · Computer Science 2021-08-20 Martin Holeček , Antonín Hoskovec , Petr Baudiš , Pavel Klinger

This paper introduces a new approach to extract and analyze vector data from technical drawings in PDF format. Our method involves converting PDF files into SVG format and creating a feature-rich graph representation, which captures the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Andrea Carrara , Stavros Nousias , André Borrmann

Traffic sign detection is crucial for improving road safety and advancing autonomous driving technologies. Due to the complexity of driving environments, traffic sign detection frequently encounters a range of challenges, including low…

Image and Video Processing · Electrical Eng. & Systems 2024-12-06 Linfeng Jiang , Peidong Zhan , Ting Bai , Haoyong Yu

The key to the text classification task is language representation and important information extraction, and there are many related studies. In recent years, the research on graph neural network (GNN) in text classification has gradually…

Computation and Language · Computer Science 2022-09-16 Shuai Hua , Xinxin Li , Yunpeng Jing , Qunfeng Liu

In recent years, the use of multi-modal pre-trained Transformers has led to significant advancements in visually-rich document understanding. However, existing models have mainly focused on features such as text and vision while neglecting…

Computation and Language · Computer Science 2023-08-16 Qiwei Li , Zuchao Li , Xiantao Cai , Bo Du , Hai Zhao

Most modern Information Extraction (IE) systems are implemented as sequential taggers and only model local dependencies. Non-local and non-sequential context is, however, a valuable source of information to improve predictions. In this…

Computation and Language · Computer Science 2019-04-08 Yujie Qian , Enrico Santus , Zhijing Jin , Jiang Guo , Regina Barzilay

Given the central role of charts in scientific, business, and communication contexts, enhancing the chart understanding capabilities of vision-language models (VLMs) has become increasingly critical. A key limitation of existing VLMs lies…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Jiangning Zhu , Yuxing Zhou , Zheng Wang , Juntao Yao , Yima Gu , Yuhui Yuan , Shixia Liu

In this work, product tables in invoices are obtained autonomously via a deep learning model, which is named as ExTTNet. Firstly, text is obtained from invoice images using Optical Character Recognition (OCR) techniques. Tesseract OCR…

Computer Vision and Pattern Recognition · Computer Science 2024-02-06 Adem Akdoğan , Murat Kurt

The extreme popularity over the years for railway transportation urges the necessity to maintain efficient railway management systems around the globe. Even though, at present, there exist a large collection of Computer Aided Designed…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Obadage Rochana Rumalshan , Pramuka Weerasinghe , Mohamed Shaheer , Prabhath Gunathilake , Erunika Dayaratna

We present an end-to-end trainable multi-task network that addresses the problem of lexicon-free text extraction from complex documents. This network simultaneously solves the problems of text localization and text recognition and text…

Computation and Language · Computer Science 2019-06-25 Mohammad Reza Sarshogh , Keegan E. Hines

Chart-to-code reconstruction -- the task of recovering executable plotting scripts from chart images -- provides important insights into a model's ability to ground data visualizations in precise, machine-readable form. Yet many existing…

Text alignment finds application in tasks such as citation recommendation and plagiarism detection. Existing alignment methods operate at a single, predefined level and cannot learn to align texts at, for example, sentence and document…

Computation and Language · Computer Science 2020-10-06 Xuhui Zhou , Nikolaos Pappas , Noah A. Smith

The recent advancements in Vision Language Models (VLMs) have demonstrated progress toward true intelligence requiring robust reasoning capabilities. Beyond pattern recognition, linguistic reasoning must integrate with visual comprehension,…

Artificial Intelligence · Computer Science 2026-04-06 Yunfei Bai , Amit Dhanda , Shekhar Jain

The automatic detection and tracking of general objects (like persons, animals or cars), text and logos in a video is crucial for many video understanding tasks, and usually real-time processing as required. We propose OmniTrack, an…

Computer Vision and Pattern Recognition · Computer Science 2019-10-15 Hannes Fassold , Ridouane Ghermi

Procedural activities are sequences of key-steps aimed at achieving specific goals. They are crucial to build intelligent agents able to assist users effectively. In this context, task graphs have emerged as a human-understandable…

Computer Vision and Pattern Recognition · Computer Science 2025-01-10 Luigi Seminara , Giovanni Maria Farinella , Antonino Furnari

Visual information extraction (VIE) has attracted considerable attention recently owing to its various advanced applications such as document understanding, automatic marking and intelligent education. Most existing works decoupled this…

Computer Vision and Pattern Recognition · Computer Science 2021-02-16 Jiapeng Wang , Chongyu Liu , Lianwen Jin , Guozhi Tang , Jiaxin Zhang , Shuaitao Zhang , Qianying Wang , Yaqiang Wu , Mingxiang Cai

Text role classification involves classifying the semantic role of textual elements within scientific charts. For this task, we propose to finetune two pretrained multimodal document layout analysis models, LayoutLMv3 and UDOP, on chart…

Computer Vision and Pattern Recognition · Computer Science 2024-02-23 Hye Jin Kim , Nicolas Lell , Ansgar Scherp