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The goal of scene text image super-resolution is to reconstruct high-resolution text-line images from unrecognizable low-resolution inputs. The existing methods relying on the optimization of pixel-level loss tend to yield text edges that…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Baolin Liu , Zongyuan Yang , Pengfei Wang , Junjie Zhou , Ziqi Liu , Ziyi Song , Yan Liu , Yongping Xiong

Scene text image super-resolution aims to increase the resolution and readability of the text in low-resolution images. Though significant improvement has been achieved by deep convolutional neural networks (CNNs), it remains difficult to…

Computer Vision and Pattern Recognition · Computer Science 2022-03-21 Jianqi Ma , Zhetong Liang , Lei Zhang

Image text retrieval is a task to search for the proper textual descriptions of the visual world and vice versa. One challenge of this task is the vulnerability to input image and text corruptions. Such corruptions are often unobserved…

Computer Vision and Pattern Recognition · Computer Science 2023-03-13 Sunwoo Kim , Kyuhong Shim , Luong Trung Nguyen , Byonghyo Shim

In various Computer Vision and Signal Processing applications, noise is typically perceived as a drawback of the image capturing system that ought to be removed. We, on the other hand, claim that image noise, just as texture, is important…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Renata Khasanova , Jan Wassenberg , Jyrki Alakuijala

Text-to-image (T2I) models can effectively capture the content or style of reference images to perform high-quality customization. A representative technique for this is fine-tuning using low-rank adaptations (LoRA), which enables efficient…

Computer Vision and Pattern Recognition · Computer Science 2024-12-13 Geonhui Jang , Jin-Hwa Kim , Yong-Hyun Park , Junho Kim , Gayoung Lee , Yonghyun Jeong

In recent years, tremendous efforts have been made on document image rectification, but existing advanced algorithms are limited to processing restricted document images, i.e., the input images must incorporate a complete document. Once the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Hao Feng , Shaokai Liu , Jiajun Deng , Wengang Zhou , Houqiang Li

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

We present a novel paradigm for ultra-low-bitrate image compression (ULB-IC) that exploits the "temporal" evolution in generative image compression. Specifically, we define an explicit intermediate state during decoding: a compact anchor…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Yunuo Chen , Chuqin Zhou , Jiangchuan Li , Xiaoyue Ling , Bing He , Jincheng Dai , Li Song , Guo Lu

Gradient boosting remains a strong and widely used method for tabular data learning, but its performance often degrades when training labels are noisy. This behavior is largely related to the way boosting algorithms emphasize samples with…

Machine Learning · Computer Science 2026-05-12 Ye Su , Longlong Zhao , Diego Garcia-Gil , Jipeng Guo , Gangchun Zhang , Jinxin Chen , Jinsong Chen

A crucial component for the scene text based reasoning required for TextVQA and TextCaps datasets involve detecting and recognizing text present in the images using an optical character recognition (OCR) system. The current systems are…

Computer Vision and Pattern Recognition · Computer Science 2021-05-13 Amanpreet Singh , Guan Pang , Mandy Toh , Jing Huang , Wojciech Galuba , Tal Hassner

Recent advancements in deep learning-based image compression are notable. However, prevalent schemes that employ a serial context-adaptive entropy model to enhance rate-distortion (R-D) performance are markedly slow. Furthermore, the…

Applications · Statistics 2024-03-25 Haisheng Fu , Feng Liang , Jie Liang , Zhenman Fang , Guohe Zhang , Jingning Han

Image restoration has always been a cutting-edge topic in the academic and industrial fields of computer vision. Since degradation signals are often random and diverse, "all-in-one" models that can do blind image restoration have been…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Qiuhai Yan , Aiwen Jiang , Kang Chen , Long Peng , Qiaosi Yi , Chunjie Zhang

Learned image compression has gained widespread popularity for their efficiency in achieving ultra-low bit-rates. Yet, images containing substantial textual content, particularly screen-content images (SCI), often suffers from text…

Computer Vision and Pattern Recognition · Computer Science 2024-02-14 Chih-Yu Lai , Dung Tran , Kazuhito Koishida

Automatic speech recognition (ASR) in the cloud allows the use of larger models and more powerful multi-channel signal processing front-ends compared to on-device processing. However, it also adds an inherent latency due to the transmission…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-16 Lukas Drude , Jahn Heymann , Andreas Schwarz , Jean-Marc Valin

Scene-text recognition is remarkably better in Latin languages than the non-Latin languages due to several factors like multiple fonts, simplistic vocabulary statistics, updated data generation tools, and writing systems. This paper…

Computer Vision and Pattern Recognition · Computer Science 2022-01-11 Sanjana Gunna , Rohit Saluja , C. V. Jawahar

Natural language often struggles to accurately associate positional and attribute information with multiple instances, which limits current text-based visual generation models to simpler compositions featuring only a few dominant instances.…

Computer Vision and Pattern Recognition · Computer Science 2024-11-28 Yuchao Gu , Yipin Zhou , Yunfan Ye , Yixin Nie , Licheng Yu , Pingchuan Ma , Kevin Qinghong Lin , Mike Zheng Shou

Scene text recognition with arbitrary shape is very challenging due to large variations in text shapes, fonts, colors, backgrounds, etc. Most state-of-the-art algorithms rectify the input image into the normalized image, then treat the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-30 Xinjie Feng , Hongxun Yao , Yuankai Qi , Jun Zhang , Shengping Zhang

Recently, scene text detection has become an active research topic in computer vision and document analysis, because of its great importance and significant challenge. However, vast majority of the existing methods detect text within local…

Computer Vision and Pattern Recognition · Computer Science 2016-07-06 Cong Yao , Xiang Bai , Nong Sang , Xinyu Zhou , Shuchang Zhou , Zhimin Cao

A large number of annotated training images is crucial for training successful scene text recognition models. However, collecting sufficient datasets can be a labor-intensive and costly process, particularly for low-resource languages. To…

Computer Vision and Pattern Recognition · Computer Science 2023-06-28 Yangchen Xie , Xinyuan Chen , Hongjian Zhan , Palaiahankote Shivakum , Bing Yin , Cong Liu , Yue Lu

Region of Interest (ROI)-based image compression optimizes bit allocation by prioritizing ROI for higher-quality reconstruction. However, as the users (including human clients and downstream machine tasks) become more diverse, ROI-based…

Computer Vision and Pattern Recognition · Computer Science 2025-07-04 Jian Jin , Fanxin Xia , Feng Ding , Xinfeng Zhang , Meiqin Liu , Yao Zhao , Weisi Lin , Lili Meng