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相关论文: On Exploring and Improving Robustness of Scene Tex…

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Reading text from natural images is challenging due to the great variety in text font, color, size, complex background and etc.. The perspective distortion and non-linear spatial arrangement of characters make it further difficult. While…

计算机视觉与模式识别 · 计算机科学 2019-11-12 Shangbang Long , Yushuo Guan , Bingxuan Wang , Kaigui Bian , Cong Yao

Contour based scene text detection methods have rapidly developed recently, but still suffer from inaccurate frontend contour initialization, multi-stage error accumulation, or deficient local information aggregation. To tackle these…

计算机视觉与模式识别 · 计算机科学 2023-07-26 Zhiwen Shao , Yuchen Su , Yong Zhou , Fanrong Meng , Hancheng Zhu , Bing Liu , Rui Yao

The prevalent scene text detection approach follows four sequential steps comprising character candidate detection, false character candidate removal, text line extraction, and text line verification. However, errors occur and accumulate…

计算机视觉与模式识别 · 计算机科学 2016-04-26 Shangxuan Tian , Yifeng Pan , Chang Huang , Shijian Lu , Kai Yu , Chew Lim Tan

We present a detector for curved text in natural images. We model scene text instances as tubes around their medial axes and introduce a parametrization-invariant loss function. We train a two-stage curved text detector, and evaluate it on…

计算机视觉与模式识别 · 计算机科学 2019-12-20 Joël Seytre , Jon Wu , Alessandro Achille

The requiring of large amounts of annotated training data has become a common constraint on various deep learning systems. In this paper, we propose a weakly supervised scene text detection method (WeText) that trains robust and accurate…

计算机视觉与模式识别 · 计算机科学 2017-10-16 Shangxuan Tian , Shijian Lu , Chongshou Li

In this paper, we first provide a new perspective to divide existing high performance object detection methods into direct and indirect regressions. Direct regression performs boundary regression by predicting the offsets from a given…

计算机视觉与模式识别 · 计算机科学 2017-03-27 Wenhao He , Xu-Yao Zhang , Fei Yin , Cheng-Lin Liu

Grammatical Error Correction (GEC) systems play a vital role in assisting people with their daily writing tasks. However, users may sometimes come across a GEC system that initially performs well but fails to correct errors when the inputs…

计算与语言 · 计算机科学 2023-10-12 Yue Zhang , Leyang Cui , Enbo Zhao , Wei Bi , Shuming Shi

The attention-based encoder-decoder framework has recently achieved impressive results for scene text recognition, and many variants have emerged with improvements in recognition quality. However, it performs poorly on contextless texts…

计算机视觉与模式识别 · 计算机科学 2020-07-20 Xiaoyu Yue , Zhanghui Kuang , Chenhao Lin , Hongbin Sun , Wayne Zhang

Scene text detection remains a grand challenge due to the variation in text curvatures, orientations, and aspect ratios. One of the hardest problems in this task is how to represent text instances of arbitrary shapes. Although many methods…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Tao Sheng , Jie Chen , Zhouhui Lian

Scene text recognition has been an important, active research topic in computer vision for years. Previous approaches mainly consider text as 1D signals and cast scene text recognition as a sequence prediction problem, by feat of CTC or…

计算机视觉与模式识别 · 计算机科学 2019-07-24 Zhaoyi Wan , Fengming Xie , Yibo Liu , Xiang Bai , Cong Yao

This study investigates the robustness of image classifiers to text-guided corruptions. We utilize diffusion models to edit images to different domains. Unlike other works that use synthetic or hand-picked data for benchmarking, we use…

计算机视觉与模式识别 · 计算机科学 2023-08-01 Mohammadreza Mofayezi , Yasamin Medghalchi

Existing works have shown that fine-tuned textual transformer models achieve state-of-the-art prediction performances but are also vulnerable to adversarial text perturbations. Traditional adversarial evaluation is often done \textit{only…

机器学习 · 计算机科学 2024-07-03 Cuong Dang , Dung D. Le , Thai Le

Deep CNNs have achieved great success in text detection. Most of existing methods attempt to improve accuracy with sophisticated network design, while paying less attention on speed. In this paper, we propose a general framework for text…

计算机视觉与模式识别 · 计算机科学 2018-05-15 Xiaoyu Yue , Zhanghui Kuang , Zhaoyang Zhang , Zhenfang Chen , Pan He , Yu Qiao , Wei Zhang

Scene text retrieval aims to localize and search all text instances from an image gallery, which are the same or similar to a given query text. Such a task is usually realized by matching a query text to the recognized words, outputted by…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Hao Wang , Xiang Bai , Mingkun Yang , Shenggao Zhu , Jing Wang , Wenyu Liu

It is challenging to detect curve texts due to their irregular shapes and varying sizes. In this paper, we first investigate the deficiency of the existing curve detection methods and then propose a novel Conditional Spatial Expansion (CSE)…

计算机视觉与模式识别 · 计算机科学 2019-03-22 Zichuan Liu , Guosheng Lin , Sheng Yang , Fayao Liu , Weisi Lin , Wang Ling Goh

Text spotting in natural scene images is of great importance for many image understanding tasks. It includes two sub-tasks: text detection and recognition. In this work, we propose a unified network that simultaneously localizes and…

计算机视觉与模式识别 · 计算机科学 2021-06-29 Peng Wang , Hui Li , Chunhua Shen

The challenging field of scene text detection requires complex data annotation, which is time-consuming and expensive. Techniques, such as weak supervision, can reduce the amount of data needed. In this paper we propose a weak supervision…

计算机视觉与模式识别 · 计算机科学 2022-01-14 Emanuel Metzenthin , Christian Bartz , Christoph Meinel

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…

计算机视觉与模式识别 · 计算机科学 2018-08-01 Chuhui Xue , Shijian Lu , Fangneng Zhan

In this paper, we propose a novel integrated framework for learning both text detection and recognition. For most of the existing methods, detection and recognition are treated as two isolated tasks and trained separately, since parameters…

计算机视觉与模式识别 · 计算机科学 2018-11-22 Wanchen Sui , Qing Zhang , Jun Yang , Wei Chu

Text in natural images is of arbitrary orientations, requiring detection in terms of oriented bounding boxes. Normally, a multi-oriented text detector often involves two key tasks: 1) text presence detection, which is a classification…

计算机视觉与模式识别 · 计算机科学 2018-03-15 Minghui Liao , Zhen Zhu , Baoguang Shi , Gui-song Xia , Xiang Bai