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Text detection and recognition are essential components of a modern OCR system. Most OCR approaches attempt to obtain accurate bounding boxes of text at the detection stage, which is used as the input of the text recognition stage. We…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Jingqun Tang , Wenming Qian , Luchuan Song , Xiena Dong , Lan Li , Xiang Bai

Image semantic segmentation aims at the pixel-level classification of images, which has requirements for both accuracy and speed in practical application. Existing semantic segmentation methods mainly rely on the high-resolution input to…

Computer Vision and Pattern Recognition · Computer Science 2022-11-07 Tianjiao Jiang , Yi Jin , Tengfei Liang , Xu Wang , Yidong Li

Most of the current boundary detection systems rely exclusively on low-level features, such as color and texture. However, perception studies suggest that humans employ object-level reasoning when judging if a particular pixel is a…

Computer Vision and Pattern Recognition · Computer Science 2015-09-22 Gedas Bertasius , Jianbo Shi , Lorenzo Torresani

Excellent performance has been achieved on instance segmentation but the quality on the boundary area remains unsatisfactory, which leads to a rising attention on boundary refinement. For practical use, an ideal post-processing refinement…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Chenming Zhu , Xuanye Zhang , Yanran Li , Liangdong Qiu , Kai Han , Xiaoguang Han

Although recent works based on deep learning have made progress in improving recognition accuracy on scene text recognition, how to handle low-quality text images in end-to-end deep networks remains a research challenge. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2021-08-16 Zhiwei Jia , Shugong Xu , Shiyi Mu , Yue Tao , Shan Cao , Zhiyong Chen

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

Rotation-invariant recognition of shapes is a common challenge in computer vision. Recent approaches have significantly improved the accuracy of rotation-invariant recognition by encoding the rotational invariance of shapes as hand-crafted…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Yanjie Xu , Handing Xu , Tianmu Wang , Yaguan Li , Yunzhi Chen , Zhenguo Nie

In this article, we propose using deep learning and transformer architectures combined with classical machine learning algorithms to detect and identify text anomalies in texts. Deep learning model provides a very crucial context…

Computation and Language · Computer Science 2022-11-28 Amir Jafari

Recently, semantic segmentation and general object detection frameworks have been widely adopted by scene text detecting tasks. However, both of them alone have obvious shortcomings in practice. In this paper, we propose a novel end-to-end…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Yuan Li , Yuanjie Yu , Zefeng Li , Yangkun Lin , Meifang Xu , Jiwei Li , Xi Zhou

Handwritten Word Recognition and Spotting is a challenging field dealing with handwritten text possessing irregular and complex shapes. The design of deep neural network models makes it necessary to extend training datasets in order to…

Computer Vision and Pattern Recognition · Computer Science 2019-02-26 Ayan Kumar Bhunia , Abhirup Das , Ankan Kumar Bhunia , Perla Sai Raj Kishore , Partha Pratim Roy

Text recognition in natural images remains a challenging yet essential task, with broad applications spanning computer vision and natural language processing. This paper introduces a novel end-to-end framework that combines ResNet and…

Computer Vision and Pattern Recognition · Computer Science 2025-05-08 Naphat Nithisopa , Teerapong Panboonyuen

In this paper, we derive new shape descriptors based on a directional characterization. The main idea is to study the behavior of the shape neighborhood under family of transformations. We obtain a description invariant with respect to…

Computer Vision and Pattern Recognition · Computer Science 2013-02-26 Xavier Descombes , Serguei Komech

Large-scale text-to-image models have demonstrated amazing ability to synthesize diverse and high-fidelity images. However, these models are often violated by several limitations. Firstly, they require the user to provide precise and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Yupei Lin , Sen Zhang , Xiaojun Yang , Xiao Wang , Yukai Shi

Nowadays, scene text recognition has attracted more and more attention due to its diverse applications. Most state-of-the-art methods adopt an encoder-decoder framework with the attention mechanism, autoregressively generating text from…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Xiaomeng Yang , Zhi Qiao , Yu Zhou

Detection and recognition of scene texts of arbitrary shapes remain a grand challenge due to the super-rich text shape variation in text line orientations, lengths, curvatures, etc. This paper presents a mask-guided multi-task network that…

Computer Vision and Pattern Recognition · Computer Science 2021-03-02 Chuhui Xue , Shijian Lu , Steven Hoi

We propose a new paradigm to automatically generate training data with accurate labels at scale using the text-to-image synthesis frameworks (e.g., DALL-E, Stable Diffusion, etc.). The proposed approach1 decouples training data generation…

Computer Vision and Pattern Recognition · Computer Science 2023-09-13 Yunhao Ge , Jiashu Xu , Brian Nlong Zhao , Neel Joshi , Laurent Itti , Vibhav Vineet

Interactive segmentation has recently been explored to effectively and efficiently harvest high-quality segmentation masks by iteratively incorporating user hints. While iterative in nature, most existing interactive segmentation methods…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Chaofan Ma , Qisen Xu , Xiangfeng Wang , Bo Jin , Xiaoyun Zhang , Yanfeng Wang , Ya Zhang

Accurate detection and segmentation of anatomical structures from ultrasound images are crucial for clinical diagnosis and biometric measurements. Although ultrasound imaging has been widely used with superiorities such as low cost and…

Computer Vision and Pattern Recognition · Computer Science 2016-07-08 Hao Chen , Yefeng Zheng , Jin-Hyeong Park , Pheng-Ann Heng , S. Kevin Zhou

Establishing a correspondence between two non-rigidly deforming shapes is one of the most fundamental problems in visual computing. Existing methods often show weak resilience when presented with challenges innate to real-world data such as…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Ramana Sundararaman , Gautam Pai , Maks Ovsjanikov

In this paper, a novel neural network architecture is proposed attempting to rectify text images with mild assumptions. A new dataset of text images is collected to verify our model and open to public. We explored the capability of deep…

Computer Vision and Pattern Recognition · Computer Science 2016-11-15 Chengzhe Yan , Jie Hu , Changshui Zhang