Parsing line chart images using linear programming

H Kato, M Nakazawa, HK Yang… - Proceedings of the …, 2022 - openaccess.thecvf.com
This paper proposes a method for automatically recovering data from chart images. In
particular we focus on the task of estimating line charts, as the most common chart type, in a …

Chartocr: Data extraction from charts images via a deep hybrid framework

J Luo, Z Li, J Wang, CY Lin - Proceedings of the IEEE/CVF …, 2021 - openaccess.thecvf.com
Chart images are commonly used for data visualization. Automatically reading the chart
values is a key step for chart content understanding. Charts have a lot of variations in style …

Chartreader: A unified framework for chart derendering and comprehension without heuristic rules

ZQ Cheng, Q Dai… - Proceedings of the IEEE …, 2023 - openaccess.thecvf.com
Charts are a powerful tool for visually conveying complex data, but their comprehension
poses a challenge due to the diverse chart types and intricate components. Existing chart …

Lineformer: Line chart data extraction using instance segmentation

J Lal, A Mitkari, M Bhosale, D Doermann - International Conference on …, 2023 - Springer
Data extraction from line-chart images is an essential component of the automated
document understanding process, as line charts are a ubiquitous data visualization format …

Data extraction from charts via single deep neural network

X Liu, D Klabjan, P NBless - arXiv preprint arXiv:1906.11906, 2019 - arxiv.org
Automatic data extraction from charts is challenging for two reasons: there exist many
relations among objects in a chart, which is not a common consideration in general …

Chartdetr: A multi-shape detection network for visual chart recognition

W Xue, D Chen, B Yu, Y Chen, S Zhou… - arXiv preprint arXiv …, 2023 - arxiv.org
Visual chart recognition systems are gaining increasing attention due to the growing
demand for automatically identifying table headers and values from chart images. Current …

Reverse‐engineering visualizations: Recovering visual encodings from chart images

J Poco, J Heer - Computer graphics forum, 2017 - Wiley Online Library
We investigate how to automatically recover visual encodings from a chart image, primarily
using inferred text elements. We contribute an end‐to‐end pipeline which takes a bitmap …

Chart decoder: Generating textual and numeric information from chart images automatically

W Dai, M Wang, Z Niu, J Zhang - Journal of Visual Languages & Computing, 2018 - Elsevier
Charts are commonly used as a graphical representation for visualizing numerical data in
digital documents. For many legacy charts or scientific charts, however, underlying data is …

OneChart: Purify the Chart Structural Extraction via One Auxiliary Token

J Chen, L Kong, H Wei, C Liu, Z Ge, L Zhao… - arXiv preprint arXiv …, 2024 - arxiv.org
Chart parsing poses a significant challenge due to the diversity of styles, values, texts, and
so forth. Even advanced large vision-language models (LVLMs) with billions of parameters …

From Pixels to Insights: A Survey on Automatic Chart Understanding in the Era of Large Foundation Models

KH Huang, HP Chan, YR Fung, H Qiu, M Zhou… - arXiv preprint arXiv …, 2024 - arxiv.org
Data visualization in the form of charts plays a pivotal role in data analysis, offering critical
insights and aiding in informed decision-making. Automatic chart understanding has …