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At present, multi-oriented text detection methods based on deep neural network have achieved promising performances on various benchmarks. Nevertheless, there are still some difficulties for arbitrary shape text detection, especially for a…

Computer Vision and Pattern Recognition · Computer Science 2020-04-17 XiaoQian Li , Jie Liu , ShuWu Zhang , GuiXuan Zhang

Candidate text region extraction plays a critical role in convolutional neural network (CNN) based text detection from natural images. In this paper, we propose a CNN based scene text detection algorithm with a new text region extractor.…

Computer Vision and Pattern Recognition · Computer Science 2016-04-08 Xiaohang Ren , Kai Chen , Jun Sun

Previous deep learning based state-of-the-art scene text detection methods can be roughly classified into two categories. The first category treats scene text as a type of general objects and follows general object detection paradigm to…

Computer Vision and Pattern Recognition · Computer Science 2018-02-28 Pengyuan Lyu , Cong Yao , Wenhao Wu , Shuicheng Yan , Xiang Bai

Scene text detection is a challenging problem in computer vision. In this paper, we propose a novel text detection network based on prevalent object detection frameworks. In order to obtain stronger semantic feature, we adopt ResNet as…

Computer Vision and Pattern Recognition · Computer Science 2017-11-15 Xiangyu Zhu , Yingying Jiang , Shuli Yang , Xiaobing Wang , Wei Li , Pei Fu , Hua Wang , Zhenbo Luo

Reading text in the wild is a very challenging task due to the diversity of text instances and the complexity of natural scenes. Recently, the community has paid increasing attention to the problem of recognizing text instances with…

Computer Vision and Pattern Recognition · Computer Science 2019-08-07 MingKun Yang , Yushuo Guan , Minghui Liao , Xin He , Kaigui Bian , Song Bai , Cong Yao , Xiang Bai

Numerous scene text detection methods have been proposed in recent years. Most of them declare they have achieved state-of-the-art performances. However, the performance comparison is unfair, due to lots of inconsistent settings (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Pengwen Dai , Xiaochun Cao

In this paper, we propose a novel method called Rotational Region CNN (R2CNN) for detecting arbitrary-oriented texts in natural scene images. The framework is based on Faster R-CNN [1] architecture. First, we use the Region Proposal Network…

Computer Vision and Pattern Recognition · Computer Science 2017-07-03 Yingying Jiang , Xiangyu Zhu , Xiaobing Wang , Shuli Yang , Wei Li , Hua Wang , Pei Fu , Zhenbo Luo

We study the problem of extracting text instance contour information from images and use it to assist scene text detection. We propose a novel and effective framework for this and experimentally demonstrate that: (1) A CNN that can be…

Computer Vision and Pattern Recognition · Computer Science 2018-12-04 Dafang He , Xiao Yang , Daniel Kifer , C. Lee Giles

Arbitrary-shaped text detection is a challenging task due to the complex geometric layouts of texts such as large aspect ratios, various scales, random rotations and curve shapes. Most state-of-the-art methods solve this problem from…

Computer Vision and Pattern Recognition · Computer Science 2020-08-13 Fangfang Wang , Yifeng Chen , Fei Wu , Xi Li

Scene text detection is an important step of scene text reading system. The main challenges lie on significantly varied sizes and aspect ratios, arbitrary orientations and shapes. Driven by recent progress in deep learning, impressive…

Computer Vision and Pattern Recognition · Computer Science 2019-10-02 Yongchao Xu , Yukang Wang , Wei Zhou , Yongpan Wang , Zhibo Yang , Xiang Bai

Recently, segmentation-based methods are quite popular in scene text detection, which mainly contain two steps: text kernel segmentation and expansion. However, the segmentation process only considers each pixel independently, and the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Xi Zhao , Wei Feng , Zheng Zhang , Jingjing Lv , Xin Zhu , Zhangang Lin , Jinghe Hu , Jingping Shao

Text detection in natural scene images has applications for autonomous driving, navigation help for elderly and blind people. However, the research on Urdu text detection is usually hindered by lack of data resources. We have developed a…

Computer Vision and Pattern Recognition · Computer Science 2022-09-29 Hazrat Ali

Segmentation-based methods are widely used for scene text detection due to their superiority in describing arbitrary-shaped text instances. However, two major problems still exist: 1) current label generation techniques are mostly empirical…

Computer Vision and Pattern Recognition · Computer Science 2021-03-17 Chenwei Cui , Liangfu Lu , Zhiyuan Tan , Amir Hussain

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…

Computer Vision and Pattern Recognition · Computer Science 2017-03-27 Wenhao He , Xu-Yao Zhang , Fei Yin , Cheng-Lin Liu

Many approaches have recently been proposed to detect irregular scene text and achieved promising results. However, their localization results may not well satisfy the following text recognition part mainly because of two reasons: 1)…

Computer Vision and Pattern Recognition · Computer Science 2021-10-26 Liang Qiao , Sanli Tang , Zhanzhan Cheng , Yunlu Xu , Yi Niu , Shiliang Pu , Fei Wu

Most text detection methods hypothesize texts are horizontal or multi-oriented and thus define quadrangles as the basic detection unit. However, text in the wild is usually perspectively distorted or curved, which can not be easily tackled…

Computer Vision and Pattern Recognition · Computer Science 2019-01-03 Jiaming Liu , Chengquan Zhang , Yipeng Sun , Junyu Han , Errui Ding

Arbitrary-shaped text detection has recently attracted increasing interests and witnessed rapid development with the popularity of deep learning algorithms. Nevertheless, existing approaches often obtain inaccurate detection results, mainly…

Computer Vision and Pattern Recognition · Computer Science 2021-07-14 Tao Sheng , Zhouhui Lian

The camera captured images have various aspects to investigate. Generally, the emphasis of research depends on the interesting regions. Sometimes the focus could be on color segmentation, object detection or scene text analysis. The image…

Computer Vision and Pattern Recognition · Computer Science 2018-10-01 Saad Bin Ahmed , Saeeda Naz , Muhammad Imran Razzak , Rubiyah Yusof

Scene text detection has drawn the close attention of researchers. Though many methods have been proposed for horizontal and oriented texts, previous methods may not perform well when dealing with arbitrary-shaped texts such as curved…

Computer Vision and Pattern Recognition · Computer Science 2021-09-09 Youhui Guo , Yu Zhou , Xugong Qin , Weiping Wang

Understanding body part geometry is crucial for precise medical diagnostics. Curves effectively describe anatomical structures and are widely used in medical imaging applications related to cardiovascular, respiratory, and skeletal…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Farukh Yaushev , Daria Nogina , Valentin Samokhin , Mariya Dugova , Ekaterina Petrash , Dmitry Sevryukov , Mikhail Belyaev , Maxim Pisov