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Extremely low-light text images are common in natural scenes, making scene text detection and recognition challenging. One solution is to enhance these images using low-light image enhancement methods before text extraction. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Che-Tsung Lin , Chun Chet Ng , Zhi Qin Tan , Wan Jun Nah , Xinyu Wang , Jie Long Kew , Pohao Hsu , Shang Hong Lai , Chee Seng Chan , Christopher Zach

Recently, segmentation-based methods are quite popular in scene text detection, as the segmentation results can more accurately describe scene text of various shapes such as curve text. However, the post-processing of binarization is…

Computer Vision and Pattern Recognition · Computer Science 2019-12-04 Minghui Liao , Zhaoyi Wan , Cong Yao , Kai Chen , Xiang Bai

Scene text instances found in natural images carry explicit semantic information that can provide important cues to solve a wide array of computer vision problems. In this paper, we focus on leveraging multi-modal content in the form of…

Computer Vision and Pattern Recognition · Computer Science 2020-09-22 Andres Mafla , Sounak Dey , Ali Furkan Biten , Lluis Gomez , Dimosthenis Karatzas

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

Deep learning based methods have achieved surprising progress in Scene Text Recognition (STR), one of classic problems in computer vision. In this paper, we propose a feasible framework for multi-lingual arbitrary-shaped STR, including…

Computer Vision and Pattern Recognition · Computer Science 2019-12-13 Jinjin Zhang , Wei Wang , Di Huang , Qingjie Liu , Yunhong Wang

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…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Tao Sheng , Jie Chen , Zhouhui Lian

In this work, we jointly address the problem of text detection and recognition in natural scene images based on convolutional recurrent neural networks. We propose a unified network that simultaneously localizes and recognizes text with a…

Computer Vision and Pattern Recognition · Computer Science 2017-07-14 Hui Li , Peng Wang , Chunhua Shen

Scene text recognition has recently been widely treated as a sequence-to-sequence prediction problem, where traditional fully-connected-LSTM (FC-LSTM) has played a critical role. Due to the limitation of FC-LSTM, existing methods have to…

Computer Vision and Pattern Recognition · Computer Science 2020-01-07 Qingqing Wang , Wenjing Jia , Xiangjian He , Yue Lu , Michael Blumenstein , Ye Huang

Recently, scene text detection has been a challenging task. Texts with arbitrary shape or large aspect ratio are usually hard to detect. Previous segmentation-based methods can describe curve text more accurately but suffer from over…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Qi Zhao , Yufei Wang , Shuchang Lyu , Lijiang Chen

We present an end-to-end trainable multi-task network that addresses the problem of lexicon-free text extraction from complex documents. This network simultaneously solves the problems of text localization and text recognition and text…

Computation and Language · Computer Science 2019-06-25 Mohammad Reza Sarshogh , Keegan E. Hines

Text image super-resolution is a unique and important task to enhance readability of text images to humans. It is widely used as pre-processing in scene text recognition. However, due to the complex degradation in natural scenes, recovering…

Computer Vision and Pattern Recognition · Computer Science 2022-10-14 Rui Qin , Bin Wang , Yu-Wing Tai

In this paper, we develop a novel unified framework called DeepText for text region proposal generation and text detection in natural images via a fully convolutional neural network (CNN). First, we propose the inception region proposal…

Computer Vision and Pattern Recognition · Computer Science 2016-05-25 Zhuoyao Zhong , Lianwen Jin , Shuye Zhang , Ziyong Feng

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

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…

Computer Vision and Pattern Recognition · Computer Science 2021-06-29 Peng Wang , Hui Li , Chunhua Shen

Scene Text Recognition is a challenging problem because of irregular styles and various distortions. This paper proposed an end-to-end trainable model consists of a finer rectification module and a bidirectional attentional recognition…

Computer Vision and Pattern Recognition · Computer Science 2020-01-28 Gang Wang

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

In this paper, we propose a novel scene text detection method named TextMountain. The key idea of TextMountain is making full use of border-center information. Different from previous works that treat center-border as a binary…

Computer Vision and Pattern Recognition · Computer Science 2018-12-03 Yixing Zhu , Jun Du

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

Signage is everywhere and a robot should be able to take advantage of signs to help it localize (including Visual Place Recognition (VPR)) and map. Robust text detection & recognition in the wild is challenging due to such factors as pose,…

Computer Vision and Pattern Recognition · Computer Science 2022-05-20 Zobeir Raisi , John Zelek

Detecting incidental scene text is a challenging task because of multi-orientation, perspective distortion, and variation of text size, color and scale. Retrospective research has only focused on using rectangular bounding box or horizontal…

Computer Vision and Pattern Recognition · Computer Science 2017-03-07 Yuliang Liu , Lianwen Jin