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Hierarchical clustering is an effective and efficient approach widely used for classical image segmentation methods. However, many existing methods using neural networks generate segmentation masks directly from per-pixel features,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-01 Teppei Suzuki

Text line detection is crucial for any application associated with Automatic Text Recognition or Keyword Spotting. Modern algorithms perform good on well-established datasets since they either comprise clean data or simple/homogeneous page…

Computer Vision and Pattern Recognition · Computer Science 2017-12-12 Tobias Grüning , Roger Labahn , Markus Diem , Florian Kleber , Stefan Fiel

Workbook-scale spreadsheet understanding is increasingly important for language-model-based data analysis agents, but remains challenging because relevant information is often distributed across multiple sheets with heterogeneous schemas,…

Artificial Intelligence · Computer Science 2026-05-08 Yiming Lei , Yiqi Wang , Yujia Zhang , Bo Guan , Depei Zhu , Chunhui Wang , Zhuonan Hao , Tianyu Shi

Chemical structure extraction from documents remains a hard problem due to both false positive identification of structures during segmentation and errors in the predicted structures. Current approaches rely on handcrafted rules and…

Machine Learning · Computer Science 2018-02-15 Joshua Staker , Kyle Marshall , Robert Abel , Carolyn McQuaw

Machine reading comprehension has aroused wide concerns, since it explores the potential of model for text understanding. To further equip the machine with the reasoning capability, the challenging task of logical reasoning is proposed.…

Computation and Language · Computer Science 2022-07-11 Fangzhi Xu , Jun Liu , Qika Lin , Yudai Pan , Lingling Zhang

Image segmentation is usually addressed by training a model for a fixed set of object classes. Incorporating additional classes or more complex queries later is expensive as it requires re-training the model on a dataset that encompasses…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Timo Lüddecke , Alexander S. Ecker

Image segmentation, the process of partitioning an image into meaningful regions, plays a pivotal role in computer vision and medical imaging applications. Unsupervised segmentation, particularly in the absence of labeled data, remains a…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Kovvuri Sai Gopal Reddy , Bodduluri Saran , A. Mudit Adityaja , Saurabh J. Shigwan , Nitin Kumar

We successfully combine Expectation-Maximization algorithm and variational approaches for parameter learning and computing inference on Markov random felds. This is a general method that can be applied to many computer vision tasks. In this…

Computer Vision and Pattern Recognition · Computer Science 2018-05-16 Francisco Cruz , Oriol Ramos Terrades

Revealing the framing of news articles is an important yet neglected task in information seeking and retrieval. In the present work, we present FrameFinder, an open tool for extracting and analyzing frames in textual data. FrameFinder…

Information Retrieval · Computer Science 2023-12-25 Markus Reiter-Haas , Beate Klösch , Markus Hadler , Elisabeth Lex

A key problem in automatic analysis and understanding of scientific papers is to extract semantic information from non-textual paper components like figures, diagrams, tables, etc. Much of this work requires a very first preprocessing step:…

Computer Vision and Pattern Recognition · Computer Science 2017-08-23 Satoshi Tsutsui , David Crandall

The use of large-scale multifaceted data is common in a wide variety of scientific applications. In many cases, this multifaceted data takes the form of a field-based (Eulerian) and point/trajectory-based (Lagrangian) representation as each…

Computer Vision and Pattern Recognition · Computer Science 2019-04-01 Franz Sauer , Kwan-Liu Ma

While advances in computing resources have made processing enormous amounts of data possible, human ability to identify patterns in such data has not scaled accordingly. Efficient computational methods for condensing and simplifying data…

Information Retrieval · Computer Science 2020-04-03 Yike Liu , Tara Safavi , Abhilash Dighe , Danai Koutra

Currently available methods for extracting saliency maps identify parts of the input which are the most important to a specific fixed classifier. We show that this strong dependence on a given classifier hinders their performance. To…

Machine Learning · Computer Science 2020-07-21 Konrad Zolna , Krzysztof J. Geras , Kyunghyun Cho

The ascension of Unmanned Aerial Vehicles (UAVs) in various fields necessitates effective UAV image segmentation, which faces challenges due to the dynamic perspectives of UAV-captured images. Traditional segmentation algorithms falter as…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Deyi Ji , Wenwei Jin , Hongtao Lu , Feng Zhao

An image line segment is a fundamental low-level visual feature that delineates straight, slender, and uninterrupted portions of objects and scenarios within images. Detection and description of line segments lay the basis for numerous…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Xinyu Lin , Yingjie Zhou , Yipeng Liu , Ce Zhu

The digital conversion of information stored in documents is a great source of knowledge. In contrast to the documents text, the conversion of the embedded documents graphics, such as charts and plots, has been much less explored. We…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Joseph Shtok , Sivan Harary , Ophir Azulai , Adi Raz Goldfarb , Assaf Arbelle , Leonid Karlinsky

Accurate skin lesion segmentation from dermoscopic images is of great importance for skin cancer diagnosis. However, automatic segmentation of melanoma remains a challenging task because it is difficult to incorporate useful texture…

Image and Video Processing · Electrical Eng. & Systems 2024-09-16 Rongtao Xu , Changwei Wang , Jiguang Zhang , Shibiao Xu , Weiliang Meng , Xiaopeng Zhang

Human interaction recognition is very important in many applications. One crucial cue in recognizing an interaction is the interactive body parts. In this work, we propose a novel Interaction Graph Transformer (IGFormer) network for…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Yunsheng Pang , Qiuhong Ke , Hossein Rahmani , James Bailey , Jun Liu

Text semantic segmentation involves partitioning a document into multiple paragraphs with continuous semantics based on the subject matter, contextual information, and document structure. Traditional approaches have typically relied on…

Computation and Language · Computer Science 2025-04-03 Tongke Ni , Yang Fan , Junru Zhou , Xiangping Wu , Qingcai Chen

We present a novel real-time line segment detection scheme called Line Graph Neural Network (LGNN). Existing approaches require a computationally expensive verification or postprocessing step. Our LGNN employs a deep convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2020-09-01 Quan Meng , Jiakai Zhang , Qiang Hu , Xuming He , Jingyi Yu