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This paper describes two approaches for content-based image retrieval and pattern spotting in document images using deep learning. The first approach uses a pre-trained CNN model to cope with the lack of training data, which is fine-tuned…

Computer Vision and Pattern Recognition · Computer Science 2019-07-25 Kelly Lais Wiggers , Alceu de Souza Britto Junior , Alessandro Lameiras Koerich , Laurent Heutte , Luiz Eduardo Soares de Oliveira

One of the most pressing problems in the automated analysis of historical documents is the availability of annotated training data. The problem is that labeling samples is a time-consuming task because it requires human expertise and thus,…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Christian Bartz , Hendrik Raetz , Jona Otholt , Christoph Meinel , Haojin Yang

SMOTE (Synthetic Minority Oversampling Technique) is the established geometric approach to random oversampling to balance classes in the imbalanced learning problem, followed by many extensions. Its idea is to introduce synthetic data…

Machine Learning · Computer Science 2025-03-06 Oleg Kachan , Andrey Savchenko , Gleb Gusev

Label placement is a critical aspect of map design, serving as a form of spatial annotation that directly impacts clarity and interpretability. Despite its importance, label placement remains largely manual and difficult to scale, as…

Human-Computer Interaction · Computer Science 2025-08-05 Harry Shomer , Jiejun Xu

Visual place recognition is a challenging task in the field of computer vision, and autonomous robotics and vehicles, which aims to identify a location or a place from visual inputs. Contemporary methods in visual place recognition employ…

Computer Vision and Pattern Recognition · Computer Science 2024-05-29 Shyam Sundar Kannan , Byung-Cheol Min

Recent image-to-image translation works have been transferred from supervised to unsupervised settings due to the expensive cost of capturing or labeling large amounts of paired data. However, current unsupervised methods using the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Pan Zhang , Jianmin Bao , Ting Zhang , Dong Chen , Fang Wen

Learning from limited data is challenging because data scarcity leads to a poor generalization of the trained model. A classical global pooled representation will probably lose useful local information. Many few-shot learning methods have…

Computer Vision and Pattern Recognition · Computer Science 2023-05-11 Haoxing Chen , Huaxiong Li , Yaohui Li , Chunlin Chen

Regional language extraction from a natural scene image is always a challenging proposition due to its dependence on the text information extracted from Image. Text Extraction on the other hand varies on different lighting condition,…

Computer Vision and Pattern Recognition · Computer Science 2018-07-10 Sauradip Nag , Pallab Kumar Ganguly , Sumit Roy , Sourab Jha , Krishna Bose , Abhishek Jha , Kousik Dasgupta

Labeling semantic segmentation datasets is a costly and laborious process if compared with tasks like image classification and object detection. This is especially true for remote sensing applications that not only work with extremely high…

Computer Vision and Pattern Recognition · Computer Science 2021-08-27 Matheus Barros Pereira , Jefersson Alex dos Santos

In the field of medical CT image processing, convolutional neural networks (CNNs) have been the dominant technique.Encoder-decoder CNNs utilise locality for efficiency, but they cannot simulate distant pixel interactions properly.Recent…

Image and Video Processing · Electrical Eng. & Systems 2022-11-03 Hongyang He , Feng Ziliang , Yuanhang Zheng , Shudong Huang , HaoBing Gao

Scene text is an important feature to be extracted, especially in vision-based mobile robot navigation as many potential landmarks such as nameplates and information signs contain text. In this paper, a novel two-step text localization…

Robotics · Computer Science 2017-09-28 Kazem Qazanfari , Saeed Shiri

Vectorized HD map is essential for autonomous driving. Remarkable work has been achieved in recent years, but there are still major issues: (1) in the generation of the BEV features, single modality-based methods are of limited perception…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Ruqin Zhou , Chenguang Dai , Wanshou Jiang , Yongsheng Zhang , Hanyun Wang , San Jiang

Scene text editing (STE) aims to replace text with the desired one while preserving background and styles of the original text. However, due to the complicated background textures and various text styles, existing methods fall short in…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Yadong Qu , Qingfeng Tan , Hongtao Xie , Jianjun Xu , Yuxin Wang , Yongdong Zhang

In this paper, we propose a novel benchmark for evaluating local image descriptors. We demonstrate that the existing datasets and evaluation protocols do not specify unambiguously all aspects of evaluation, leading to ambiguities and…

Computer Vision and Pattern Recognition · Computer Science 2017-04-21 Vassileios Balntas , Karel Lenc , Andrea Vedaldi , Krystian Mikolajczyk

This paper presents a sparse representation-based classification approach with a novel dictionary construction procedure. By using the constructed dictionary sophisticated prior knowledge about the spatial nature of the image can be…

Computer Vision and Pattern Recognition · Computer Science 2017-08-22 Ribana Roscher , Björn Waske

Table detection is the task of classifying and localizing table objects within document images. With the recent development in deep learning methods, we observe remarkable success in table detection. However, a significant amount of labeled…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Tahira Shehzadi , Khurram Azeem Hashmi , Didier Stricker , Marcus Liwicki , Muhammad Zeshan Afzal

This paper presents a scene text detection technique that exploits bootstrapping and text border semantics for accurate localization of texts in scenes. A novel bootstrapping technique is designed which samples multiple 'subsections' of a…

Computer Vision and Pattern Recognition · Computer Science 2018-08-01 Chuhui Xue , Shijian Lu , Fangneng Zhan

Autonomous navigation in unstructured off-road environments is greatly improved by semantic scene understanding. Conventional image processing algorithms are difficult to implement and lack robustness due to a lack of structure and high…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Anthony Medellin , Anant Bhamri , Reza Langari , Swaminathan Gopalswamy

Scene text removal (STR) is a challenging task due to the complex text fonts, colors, sizes, and background textures in scene images. However, most previous methods learn both text location and background inpainting implicitly within a…

Computer Vision and Pattern Recognition · Computer Science 2023-06-14 Guangtao Lyu , Anna Zhu

The growing deluge of scientific publications demands text analysis tools that can help scientists and policy-makers navigate, forecast and beneficially guide scientific research. Recent advances in natural language understanding driven by…

Computation and Language · Computer Science 2021-04-14 Brendan Chambers , James Evans
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