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The proliferation of scene text in both structured and unstructured environments presents significant challenges in optical character recognition (OCR), necessitating more efficient and robust text spotting solutions. This paper presents…

计算机视觉与模式识别 · 计算机科学 2025-03-13 Alloy Das , Sanket Biswas , Umapada Pal , Josep Lladós , Saumik Bhattacharya

Contrastive Language-Image Pre-training (CLIP) has been a celebrated method for training vision encoders to generate image/text representations facilitating various applications. Recently, CLIP has been widely adopted as the vision backbone…

计算机视觉与模式识别 · 计算机科学 2025-02-20 Hong-You Chen , Zhengfeng Lai , Haotian Zhang , Xinze Wang , Marcin Eichner , Keen You , Meng Cao , Bowen Zhang , Yinfei Yang , Zhe Gan

We propose weakly supervised language localization networks (WSLLN) to detect events in long, untrimmed videos given language queries. To learn the correspondence between visual segments and texts, most previous methods require temporal…

计算机视觉与模式识别 · 计算机科学 2019-09-04 Mingfei Gao , Larry S. Davis , Richard Socher , Caiming Xiong

The field of object detection and understanding is rapidly evolving, driven by advances in both traditional CNN-based models and emerging multi-modal large language models (LLMs). While CNNs like ResNet and YOLO remain highly effective for…

计算机视觉与模式识别 · 计算机科学 2025-10-13 Nirmal Elamon , Rouzbeh Davoudi

Edit-based approaches have recently shown promising results on multiple monolingual sequence transduction tasks. In contrast to conventional sequence-to-sequence (Seq2Seq) models, which learn to generate text from scratch as they are…

计算与语言 · 计算机科学 2022-05-11 Kostiantyn Omelianchuk , Vipul Raheja , Oleksandr Skurzhanskyi

An unconstrained end-to-end text localization and recognition method is presented. The method detects initial text hypothesis in a single pass by an efficient region-based method and subsequently refines the text hypothesis using a more…

计算机视觉与模式识别 · 计算机科学 2015-04-15 Lukáš Neumann , Jiří Matas

Texts from scene images typically consist of several characters and exhibit a characteristic sequence structure. Existing methods capture the structure with the sequence-to-sequence models by an encoder to have the visual representations…

计算机视觉与模式识别 · 计算机科学 2020-02-18 Xiangcheng Du , Tianlong Ma , Yingbin Zheng , Hao Ye , Xingjiao Wu , Liang He

A major goal of computer vision is to enable computers to interpret visual situations---abstract concepts (e.g., "a person walking a dog," "a crowd waiting for a bus," "a picnic") whose image instantiations are linked more by their common…

计算机视觉与模式识别 · 计算机科学 2016-11-17 Anthony D. Rhodes , Max H. Quinn , Melanie Mitchell

Video text detection is considered as one of the most difficult tasks in document analysis due to the following two challenges: 1) the difficulties caused by video scenes, i.e., motion blur, illumination changes, and occlusion; 2) the…

计算机视觉与模式识别 · 计算机科学 2019-08-21 Hongyuan Yu , Chengquan Zhang , Xuan Li , Junyu Han , Errui Ding , Liang Wang

In the field of scene text spotting, previous OCR methods primarily relied on image encoders and pre-trained text information, but they often overlooked the advantages of incorporating human language instructions. To address this gap, we…

计算机视觉与模式识别 · 计算机科学 2025-01-14 Chen Duan , Qianyi Jiang , Pei Fu , Jiamin Chen , Shengxi Li , Zining Wang , Shan Guo , Junfeng Luo

This paper explores semi-supervised training for sequence tasks, such as Optical Character Recognition or Automatic Speech Recognition. We propose a novel loss function $\unicode{x2013}$ SoftCTC $\unicode{x2013}$ which is an extension of…

机器学习 · 计算机科学 2023-09-20 Martin Kišš , Michal Hradiš , Karel Beneš , Petr Buchal , Michal Kula

Recent years have witnessed the fast growth in telecommunication (Telco) techniques from 2G to upcoming 5G. Precise outdoor localization is important for Telco operators to manage, operate and optimize Telco networks. Differing from GPS,…

网络与互联网体系结构 · 计算机科学 2021-08-25 Yige Zhang , Weixiong Rao , Mingxuan Yuan , Jia Zeng , Pan Hui

Conventional optical character recognition (OCR) techniques segmented each character and then recognized. This made them prone to error in character segmentation, and devoid of context to exploit language models. Advances in sequence to…

计算机视觉与模式识别 · 计算机科学 2025-09-01 Shashank Vempati , Nishit Anand , Gaurav Talebailkar , Arpan Garai , Chetan Arora

In this paper, we propose a novel integrated framework for learning both text detection and recognition. For most of the existing methods, detection and recognition are treated as two isolated tasks and trained separately, since parameters…

计算机视觉与模式识别 · 计算机科学 2018-11-22 Wanchen Sui , Qing Zhang , Jun Yang , Wei Chu

Deep learning-based scene text detection methods have progressed substantially over the past years. However, there remain several problems to be solved. Generally, long curve text instances tend to be fragmented because of the limited…

计算机视觉与模式识别 · 计算机科学 2020-04-28 Meng Cao , Yuexian Zou

This paper presents a complete Optical Character Recognition (OCR) system for camera captured image/graphics embedded textual documents for handheld devices. At first, text regions are extracted and skew corrected. Then, these regions are…

计算机视觉与模式识别 · 计算机科学 2011-09-16 Ayatullah Faruk Mollah , Nabamita Majumder , Subhadip Basu , Mita Nasipuri

In recent years, text classification methods based on neural networks and pre-trained models have gained increasing attention and demonstrated excellent performance. However, these methods still have some limitations in practical…

计算与语言 · 计算机科学 2024-12-16 Yanxu Mao , Peipei Liu , Tiehan Cui , Congying Liu , Datao You

Regional language extraction from a natural scene image is always a challenging proposition due to its dependence on the text information extracted from Image. Text Extraction on the other hand varies on different lighting condition,…

计算机视觉与模式识别 · 计算机科学 2018-07-10 Sauradip Nag , Pallab Kumar Ganguly , Sumit Roy , Sourab Jha , Krishna Bose , Abhishek Jha , Kousik Dasgupta

Scene text retrieval aims to localize and search all text instances from an image gallery, which are the same or similar to a given query text. Such a task is usually realized by matching a query text to the recognized words, outputted by…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Hao Wang , Xiang Bai , Mingkun Yang , Shenggao Zhu , Jing Wang , Wenyu Liu

Mining multiple longest common subsequences (\textit{MLCS}) from a set of sequences of three or more over a finite alphabet $\Sigma$ (a classical NP-hard problem) is an important task in a wide variety of application fields. Unfortunately,…

数据库 · 计算机科学 2026-04-16 Zhi Wang , Yanni Li , Tihua Duan , Bing Liu , Liyong Zhang , Hui Li