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Scene text image super-resolution (STISR) has been regarded as an important pre-processing task for text recognition from low-resolution scene text images. Most recent approaches use the recognizer's feedback as clues to guide…

Computer Vision and Pattern Recognition · Computer Science 2022-05-02 Minyi Zhao , Miao Wang , Fan Bai , Bingjia Li , Jie Wang , Shuigeng Zhou

Scene Text Image Super-Resolution (STISR) aims to enhance the resolution and legibility of text within low-resolution (LR) images, consequently elevating recognition accuracy in Scene Text Recognition (STR). Previous methods predominantly…

Computer Vision and Pattern Recognition · Computer Science 2023-11-23 Yuxuan Zhou , Liangcai Gao , Zhi Tang , Baole Wei

Scene text image super-resolution (STISR) is an important pre-processing technique for text recognition from low-resolution scene images. Nowadays, various methods have been proposed to extract text-specific information from high-resolution…

Computer Vision and Pattern Recognition · Computer Science 2023-08-01 Minyi Zhao , Yi Xu , Bingjia Li , Jie Wang , Jihong Guan , Shuigeng Zhou

Scene text image super-resolution (STISR) aims to improve the resolution and visual quality of low-resolution (LR) scene text images, and consequently boost the performance of text recognition. However, most of existing STISR methods regard…

Computer Vision and Pattern Recognition · Computer Science 2021-07-01 Jianqi Ma , Shi Guo , Lei Zhang

Scene Text Image Super-resolution (STISR) has recently achieved great success as a preprocessing method for scene text recognition. STISR aims to transform blurred and noisy low-resolution (LR) text images in real-world settings into clear…

Computer Vision and Pattern Recognition · Computer Science 2023-12-25 Chihiro Noguchi , Shun Fukuda , Masao Yamanaka

In this paper, we present a method for enhancing the accuracy of scene text recognition tasks by judging whether the image and text match each other. While previous studies focused on generating the recognition results from input images,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Masato Fujitake

Scene text recognition (STR) is a challenging problem due to the imperfect imagery conditions in natural images. State-of-the-art methods utilize both visual cues and linguistic knowledge to tackle this challenging problem. Specifically,…

Computer Vision and Pattern Recognition · Computer Science 2022-04-07 Xiaojie Chu , Yongtao Wang

Scene Text Image Super-Resolution (STISR) aims to restore high-resolution details in low-resolution text images, which is crucial for both human readability and machine recognition. Existing methods, however, often depend on external…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Axi Niu , Kang Zhang , Qingsen Yan , Hao Jin , Jinqiu Sun , Yanning Zhang

Multi-modal models have shown appealing performance in visual recognition tasks, as free-form text-guided training evokes the ability to understand fine-grained visual content. However, current models cannot be trivially applied to scene…

Computer Vision and Pattern Recognition · Computer Science 2025-01-03 Yongkun Du , Zhineng Chen , Yuchen Su , Caiyan Jia , Yu-Gang Jiang

While scene text image super-resolution (STISR) has yielded remarkable improvements in accurately recognizing scene text, prior methodologies have placed excessive emphasis on optimizing performance, rather than paying due attention to…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Minghao Fu , Xin Man , Yihan Xu , Jie Shao

Scene text image super-resolution (STISR), aiming to improve image quality while boosting downstream scene text recognition accuracy, has recently achieved great success. However, most existing methods treat the foreground (character…

Computer Vision and Pattern Recognition · Computer Science 2023-08-01 Hang Guo , Tao Dai , Guanghao Meng , Shu-Tao Xia

High-quality whole-slide scanning is expensive, complex, and time-consuming, thus limiting the acquisition and utilization of high-resolution histopathology images in daily clinical work. Deep learning-based single-image super-resolution…

Image and Video Processing · Electrical Eng. & Systems 2024-11-08 Minghong Duan , Linhao Qu , Zhiwei Yang , Manning Wang , Chenxi Zhang , Zhijian Song

While recent advancements in Image Super-Resolution (SR) using diffusion models have shown promise in improving overall image quality, their application to scene text images has revealed limitations. These models often struggle with…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Keren Ye , Ignacio Garcia Dorado , Michalis Raptis , Mauricio Delbracio , Irene Zhu , Peyman Milanfar , Hossein Talebi

Low-resolution text images are often seen in natural scenes such as documents captured by mobile phones. Recognizing low-resolution text images is challenging because they lose detailed content information, leading to poor recognition…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Wenjia Wang , Enze Xie , Xuebo Liu , Wenhai Wang , Ding Liang , Chunhua Shen , Xiang Bai

Scene text recognition in low-resource languages frequently faces challenges due to the limited availability of training datasets derived from real-world scenes. This study proposes a novel approach that generates text images in…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Chihiro Noguchi , Shun Fukuda , Shoichiro Mihara , Masao Yamanaka

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 Image Super-resolution (STISR) aims to recover high-resolution (HR) scene text images with visually pleasant and readable text content from the given low-resolution (LR) input. Most existing works focus on recovering English…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Jianqi Ma , Zhetong Liang , Wangmeng Xiang , Xi Yang , Lei Zhang

Despite the great advances made in the field of image super-resolution (ISR) during the last years, the performance has merely been evaluated perceptually. Thus, it is still unclear whether ISR is helpful for other vision tasks. In this…

Computer Vision and Pattern Recognition · Computer Science 2016-01-29 Dengxin Dai , Yujian Wang , Yuhua Chen , Luc Van Gool

Learned Sparse Retrieval (LSR) is a group of neural methods designed to encode queries and documents into sparse lexical vectors. These vectors can be efficiently indexed and retrieved using an inverted index. While LSR has shown promise in…

Information Retrieval · Computer Science 2024-02-13 Thong Nguyen , Mariya Hendriksen , Andrew Yates

Scene text recognition has witnessed rapid development with the advance of convolutional neural networks. Nonetheless, most of the previous methods may not work well in recognizing text with low resolution which is often seen in natural…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Wenjia Wang , Enze Xie , Peize Sun , Wenhai Wang , Lixun Tian , Chunhua Shen , Ping Luo
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