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Images taken under low-light conditions tend to suffer from poor visibility, which can decrease image quality and even reduce the performance of the downstream tasks. It is hard for a CNN-based method to learn generalized features that can…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Yi Huang , Xiaoguang Tu , Gui Fu , Tingting Liu , Bokai Liu , Ming Yang , Ziliang Feng

We introduce Lumos, the first end-to-end multimodal question-answering system with text understanding capabilities. At the core of Lumos is a Scene Text Recognition (STR) component that extracts text from first person point-of-view images,…

Low-Light Image Enhancement (LLIE) has long been a challenging problem in low-level vision, as insufficient illumination often leads to low contrast, detail loss, and noise. Recent studies show that deep learning-based Retinex theory can…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Ziqi Wang , Xu Zhang , Laibin Chang , Shi Chen , Jiaqi Ma , Huan Zhang

Scene text recognition is essential in many applications, including automated translation, information retrieval, driving assistance, and enhancing accessibility for individuals with visual impairments. Much research has been done to…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Fadila Wendigoundi Douamba , Jianjun Song , Ling Fu , Yuliang Liu , Xiang Bai

Different from focused texts present in natural images, which are captured with user's intention and intervention, incidental texts usually exhibit much more diversity, variability and complexity, thus posing significant difficulties and…

Computer Vision and Pattern Recognition · Computer Science 2016-02-04 Cong Yao , Jianan Wu , Xinyu Zhou , Chi Zhang , Shuchang Zhou , Zhimin Cao , Qi Yin

Face detection in low light scenarios is challenging but vital to many practical applications, e.g., surveillance video, autonomous driving at night. Most existing face detectors heavily rely on extensive annotations, while collecting data…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Wenjing Wang , Wenhan Yang , Jiaying Liu

In this work we present a state-of-the-art approach for unconstrained natural scene text recognition. We propose a cascade approach that incorporates a convolutional neural network (CNN) architecture followed by a long short term memory…

Computer Vision and Pattern Recognition · Computer Science 2016-07-22 Ahmed Mamdouh A. Hassanien

Scene text recognition (STR) pre-training methods have achieved remarkable progress, primarily relying on synthetic datasets. However, the domain gap between synthetic and real images poses a challenge in acquiring feature representations…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Shuai Zhao , Yongkun Du , Zhineng Chen , Yu-Gang Jiang

Learning-based methods have made promising advances in low-light RAW image enhancement, while their capability to extremely dark scenes where the environmental illuminance drops as low as 0.0001 lux remains to be explored due to the lack of…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Hai Jiang , Binhao Guan , Zhen Liu , Xiaohong Liu , Jian Yu , Zheng Liu , Songchen Han , Shuaicheng Liu

To achieve high coverage of target boxes, a normal strategy of conventional one-stage anchor-based detectors is to utilize multiple priors at each spatial position, especially in scene text detection tasks. In this work, we present a simple…

Computer Vision and Pattern Recognition · Computer Science 2019-09-24 Linjie Deng , Yanxiang Gong , Xinchen Lu , Yi Lin , Zheng Ma , Mei Xie

Fast and accurate object perception in low-light traffic scenes has attracted increasing attention. However, due to severe illumination degradation and the lack of reliable visual cues, existing perception models and methods struggle to…

Computer Vision and Pattern Recognition · Computer Science 2025-09-08 Hulin Li , Qiliang Ren , Jun Li , Hanbing Wei , Zheng Liu , Linfang Fan

Context-aware STR methods typically use internal autoregressive (AR) language models (LM). Inherent limitations of AR models motivated two-stage methods which employ an external LM. The conditional independence of the external LM on the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-15 Darwin Bautista , Rowel Atienza

Night photography typically suffers from both low light and blurring issues due to the dim environment and the common use of long exposure. While existing light enhancement and deblurring methods could deal with each problem individually, a…

Image and Video Processing · Electrical Eng. & Systems 2022-08-31 Shangchen Zhou , Chongyi Li , Chen Change Loy

Images acquired in low-light environments present significant obstacles for computer vision systems and human perception, especially for applications requiring accurate object recognition and scene analysis. Such images typically manifest…

Image and Video Processing · Electrical Eng. & Systems 2025-10-28 Bibhabasu Debnath , Sahana Ray , Sanjay Ghosh

Nighttime camera-based depth estimation is a highly challenging task, especially for autonomous driving applications, where accurate depth perception is essential for ensuring safe navigation. Models trained on daytime data often fail in…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Simon de Moreau , Yasser Almehio , Andrei Bursuc , Hafid El-Idrissi , Bogdan Stanciulescu , Fabien Moutarde

Though deep learning based scene text detection has achieved great progress, well-trained detectors suffer from severe performance degradation for different domains. In general, a tremendous amount of data is indispensable to train the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-26 Yudi Chen , Wei Wang , Yu Zhou , Fei Yang , Dongbao Yang , Weiping Wang

Due to the nature of enhancement--the absence of paired ground-truth information, high-level vision tasks have been recently employed to evaluate the performance of low-light image enhancement. A widely-used manner is to see how accurately…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Mingjia Li , Hao Zhao , Xiaojie Guo

Low-light image enhancement (LLIE) is a crucial task in computer vision aimed at enhancing the visual fidelity of images captured under low-illumination conditions. Conventional methods frequently struggle with noise, overexposure, and…

Image and Video Processing · Electrical Eng. & Systems 2025-07-17 Namrah Siddiqua , Kim Suneung , Seong-Whan Lee

Scene text removal (STR) aims to erase textual elements from images. It was originally intended for removing privacy-sensitiveor undesired texts from natural scene images, but is now also appliedto typographic images. STR typically detects…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Takumi Yoshimatsu , Shumpei Takezaki , Seiichi Uchida

We introduce the structured scene-text spotting task, which requires a scene-text OCR system to spot text in the wild according to a query regular expression. Contrary to generic scene text OCR, structured scene-text spotting seeks to…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Sergi Garcia-Bordils , Dimosthenis Karatzas , Marçal Rusiñol
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