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Recently, large language models (LLMs) are capable of generating highly fluent textual content. While they offer significant convenience to humans, they also introduce various risks, like phishing and academic dishonesty. Numerous research…

Computation and Language · Computer Science 2026-05-20 Chenxi Qing , Junxi Wu , Zheng Liu , Yixiang Qiu , Hongyao Yu , Bin Chen , Hao Wu , Shu-Tao Xia

With hundreds of thousands of electronic chip components are being manufactured every day, chip manufacturers have seen an increasing demand in seeking a more efficient and effective way of inspecting the quality of printed texts on chip…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Chun Chet Ng , Akmalul Khairi Bin Nazaruddin , Yeong Khang Lee , Xinyu Wang , Yuliang Liu , Chee Seng Chan , Lianwen Jin , Yipeng Sun , Lixin Fan

Handwritten character recognition (HCR) is a challenging problem for machine learning researchers. Unlike printed text data, handwritten character datasets have more variation due to human-introduced bias. With numerous unique character…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Boris Kriuk , Fedor Kriuk

The laws of model size, data volume, computation and model performance have been extensively studied in the field of Natural Language Processing (NLP). However, the scaling laws in Optical Character Recognition (OCR) have not yet been…

Computer Vision and Pattern Recognition · Computer Science 2024-02-01 Miao Rang , Zhenni Bi , Chuanjian Liu , Yunhe Wang , Kai Han

In recent years, text-image joint pre-training techniques have shown promising results in various tasks. However, in Optical Character Recognition (OCR) tasks, aligning text instances with their corresponding text regions in images poses a…

Computer Vision and Pattern Recognition · Computer Science 2024-04-18 Chen Duan , Pei Fu , Shan Guo , Qianyi Jiang , Xiaoming Wei

Scene text recognition is an important and challenging task in computer vision. However, most prior works focus on recognizing pre-defined words, while there are various out-of-vocabulary (OOV) words in real-world applications. In this…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Xuhua Ren , Hengcan Shi , Jin Li

Scene Text Recognition (STR) methods have demonstrated robust performance in word-level text recognition. However, in real applications the text image is sometimes long due to detected with multiple horizontal words. It triggers the…

Computer Vision and Pattern Recognition · Computer Science 2025-01-23 Yongkun Du , Zhineng Chen , Caiyan Jia , Xieping Gao , Yu-Gang Jiang

We present an end-to-end trainable approach for Optical Character Recognition (OCR) on printed documents. Specifically, we propose a model that predicts a) a two-dimensional character grid (\emph{chargrid}) representation of a document…

Computer Vision and Pattern Recognition · Computer Science 2020-02-28 Christian Reisswig , Anoop R Katti , Marco Spinaci , Johannes Höhne

This paper presents final results of the Out-Of-Vocabulary 2022 (OOV) challenge. The OOV contest introduces an important aspect that is not commonly studied by Optical Character Recognition (OCR) models, namely, the recognition of unseen…

Computer Vision and Pattern Recognition · Computer Science 2022-09-15 Sergi Garcia-Bordils , Andrés Mafla , Ali Furkan Biten , Oren Nuriel , Aviad Aberdam , Shai Mazor , Ron Litman , Dimosthenis Karatzas

Handwriting recognition is of crucial importance to both Human Computer Interaction (HCI) and paperwork digitization. In the general field of Optical Character Recognition (OCR), handwritten Chinese character recognition faces tremendous…

Computer Vision and Pattern Recognition · Computer Science 2021-03-18 Boxiang Dong , Aparna S. Varde , Danilo Stevanovic , Jiayin Wang , Liang Zhao

Optical Character Recognition (OCR) has many real world applications. The existing methods normally detect where the characters are, and then recognize the character for each detected location. Thus the accuracy of characters recognition is…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 Baohua Sun , Michael Lin , Hao Sha , Lin Yang

Reading text from natural images is challenging due to the great variety in text font, color, size, complex background and etc.. The perspective distortion and non-linear spatial arrangement of characters make it further difficult. While…

Computer Vision and Pattern Recognition · Computer Science 2019-11-12 Shangbang Long , Yushuo Guan , Bingxuan Wang , Kaigui Bian , Cong Yao

The current bottleneck in continuous sign language recognition (CSLR) research lies in the fact that most publicly available datasets are limited to laboratory environments or television program recordings, resulting in a single background…

Computer Vision and Pattern Recognition · Computer Science 2025-09-11 Qidan Zhu , Jing Li , Fei Yuan , Jiaojiao Fan , Quan Gan

For digitizing or indexing physical documents, Optical Character Recognition (OCR), the process of extracting textual information from scanned documents, is a vital technology. When a document is visually damaged or contains non-textual…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Oshri Naparstek , Ophir Azulai , Daniel Rotman , Yevgeny Burshtein , Peter Staar , Udi Barzelay

Recently, video text detection, tracking, and recognition in natural scenes are becoming very popular in the computer vision community. However, most existing algorithms and benchmarks focus on common text cases (e.g., normal size, density)…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Weijia Wu , Yuzhong Zhao , Zhuang Li , Jiahong Li , Mike Zheng Shou , Umapada Pal , Dimosthenis Karatzas , Xiang Bai

Detection and recognition of text from scans and other images, commonly denoted as Optical Character Recognition (OCR), is a widely used form of automated document processing with a number of methods available. Yet OCR systems still do not…

Computer Vision and Pattern Recognition · Computer Science 2023-01-24 Krzysztof Olejniczak , Milan Šulc

Like other problems in computer vision, offline handwritten Chinese character recognition (HCCR) has achieved impressive results using convolutional neural network (CNN)-based methods. However, larger and deeper networks are needed to…

Computer Vision and Pattern Recognition · Computer Science 2017-02-28 Xuefeng Xiao , Lianwen Jin , Yafeng Yang , Weixin Yang , Jun Sun , Tianhai Chang

Vision-Language Models pre-trained on large-scale image-text datasets have shown superior performance in downstream tasks such as image retrieval. Most of the images for pre-training are presented in the form of open domain common-sense…

Computer Vision and Pattern Recognition · Computer Science 2024-01-26 Xiangshuo Qiao , Xianxin Li , Xiaozhe Qu , Jie Zhang , Yang Liu , Yu Luo , Cihang Jin , Jin Ma

Chinese calligraphy, a UNESCO Heritage, remains computationally challenging due to visual ambiguity and cultural complexity. Existing AI systems fail to contextualize their intricate scripts, because of limited annotated data and poor…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Yuxuan Luo , Jiaqi Tang , Chenyi Huang , Feiyang Hao , Zhouhui Lian

Large Language Models (LLMs) are widely applied across various domains due to their powerful text generation capabilities. While LLM-generated texts often resemble human-written ones, their misuse can lead to significant societal risks.…

Computation and Language · Computer Science 2026-03-31 Zhuoshang Wang , Yubing Ren , Guoyu Zhao , Xiaowei Zhu , Hao Li , Yanan Cao