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Document comparison typically relies on optical character recognition (OCR) as its core technology. However, OCR requires the selection of appropriate language models for each document and the performance of multilingual or hybrid models…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Doyoung Park , Naresh Reddy Yarram , Sunjin Kim , Minkyu Kim , Seongho Cho , Taehee Lee

Automatic detection of font size finds many applications in the area of intelligent OCRing and document image analysis, which has been traditionally practiced over uncompressed documents, although in real life the documents exist in…

Computer Vision and Pattern Recognition · Computer Science 2014-02-19 Mohammed Javed , P. Nagabhushan , B. B. Chaudhuri

The accuracy of Optical Character Recognition (OCR) is crucial to the success of subsequent applications used in text analyzing pipeline. Recent models of OCR post-processing significantly improve the quality of OCR-generated text, but are…

Computer Vision and Pattern Recognition · Computer Science 2016-11-22 Jie Mei , Aminul Islam , Yajing Wu , Abidalrahman Moh'd , Evangelos E. Milios

Recent advancements in deep neural networks have markedly enhanced the performance of computer vision tasks, yet the specialized nature of these networks often necessitates extensive data and high computational power. Addressing these…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Jiayou Chao , Wei Zhu

Despite significant advancements in Large Vision Language Models (LVLMs), a gap remains, particularly regarding their interpretability and how they locate and interpret textual information within images. In this paper, we explore various…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Ingeol Baek , Hwan Chang , Sunghyun Ryu , Hwanhee Lee

We address the problem of detecting and mapping all books in a collection of images to entries in a given book catalogue. Instead of performing independent retrieval for each book detected, we treat the image-text mapping problem as a…

Computer Vision and Pattern Recognition · Computer Science 2025-06-30 Artemis Llabrés , Arka Ujjal Dey , Dimosthenis Karatzas , Ernest Valveny

Most text detection methods hypothesize texts are horizontal or multi-oriented and thus define quadrangles as the basic detection unit. However, text in the wild is usually perspectively distorted or curved, which can not be easily tackled…

Computer Vision and Pattern Recognition · Computer Science 2019-01-03 Jiaming Liu , Chengquan Zhang , Yipeng Sun , Junyu Han , Errui Ding

Estimating the depth of comics images is challenging as such images a) are monocular; b) lack ground-truth depth annotations; c) differ across different artistic styles; d) are sparse and noisy. We thus, use an off-the-shelf unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2022-08-16 Deblina Bhattacharjee , Martin Everaert , Mathieu Salzmann , Sabine Süsstrunk

We present MMOCR-an open-source toolbox which provides a comprehensive pipeline for text detection and recognition, as well as their downstream tasks such as named entity recognition and key information extraction. MMOCR implements 14…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Zhanghui Kuang , Hongbin Sun , Zhizhong Li , Xiaoyu Yue , Tsui Hin Lin , Jianyong Chen , Huaqiang Wei , Yiqin Zhu , Tong Gao , Wenwei Zhang , Kai Chen , Wayne Zhang , Dahua Lin

Segmentation of a text-document into lines, words and characters, which is considered to be the crucial pre-processing stage in Optical Character Recognition (OCR) is traditionally carried out on uncompressed documents, although most of the…

Computer Vision and Pattern Recognition · Computer Science 2014-04-01 Mohammed Javed , P. Nagabhushan , B. B. Chaudhuri

Driven by deep learning and the large volume of data, scene text recognition has evolved rapidly in recent years. Formerly, RNN-attention based methods have dominated this field, but suffer from the problem of \textit{attention drift} in…

Computer Vision and Pattern Recognition · Computer Science 2020-01-03 Zhaoyi Wan , Minghang He , Haoran Chen , Xiang Bai , Cong Yao

Vision Large Language Models (VLLMs) have achieved remarkable success in modern text-rich visual understanding. However, their perceptual robustness in the face of the continuous morphological evolution of historical writing systems remains…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Gengluo Li , Shangpin Peng , Xingyu Wan , Chengquan Zhang , Hao Feng , Xin Xu , Pian Wu , Bang Li , Zengmao Ding , Yongge Liu , Yipei Ye , Yang Yang , Zhan Shu , Guojun Yan , Zhe Li , Can Ma , Weiping Wang , Yu Zhou , Han Hu

Standard OCR is a well-researched topic of computer vision and can be considered solved for machine-printed text. However, when applied to unconstrained images, the recognition rates drop drastically. Therefore, the employment of object…

Computer Vision and Pattern Recognition · Computer Science 2013-04-29 Albert Kavelar , Sebastian Zambanini , Martin Kampel

Imagery texts are usually organized as a hierarchy of several visual elements, i.e. characters, words, text lines and text blocks. Among these elements, character is the most basic one for various languages such as Western, Chinese,…

Computer Vision and Pattern Recognition · Computer Science 2017-08-23 Han Hu , Chengquan Zhang , Yuxuan Luo , Yuzhuo Wang , Junyu Han , Errui Ding

Text in curve orientation, despite being one of the common text orientations in real world environment, has close to zero existence in well received scene text datasets such as ICDAR2013 and MSRA-TD500. The main motivation of Total-Text is…

Computer Vision and Pattern Recognition · Computer Science 2017-10-31 Chee Kheng Chng , Chee Seng Chan

Recent works in image captioning have shown very promising raw performance. However, we realize that most of these encoder-decoder style networks with attention do not scale naturally to large vocabulary size, making them difficult to be…

Computer Vision and Pattern Recognition · Computer Science 2019-06-13 Jia Huei Tan , Chee Seng Chan , Joon Huang Chuah

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

Recognizing irregular texts has been a challenging topic in text recognition. To encourage research on this topic, we provide a novel comic onomatopoeia dataset (COO), which consists of onomatopoeia texts in Japanese comics. COO has many…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Jeonghun Baek , Yusuke Matsui , Kiyoharu Aizawa

We present a novel deep neural model for text detection in document images. For robust text detection in noisy scanned documents, the advantages of multi-task learning are adopted by adding an auxiliary task of text enhancement. Namely, our…

Computer Vision and Pattern Recognition · Computer Science 2021-06-11 Eun-Soo Jung , HyeongGwan Son , Kyusam Oh , Yongkeun Yun , Soonhwan Kwon , Min Soo Kim

Recent years have witnessed increasing attention in cartoon media, powered by the strong demands of industrial applications. As the first step to understand this media, cartoon face recognition is a crucial but less-explored task with few…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Yi Zheng , Yifan Zhao , Mengyuan Ren , He Yan , Xiangju Lu , Junhui Liu , Jia Li