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Weakly-Supervised Change Detection (WSCD) aims to distinguish specific object changes (e.g., objects appearing or disappearing) from background variations (e.g., environmental changes due to light, weather, or seasonal shifts) in paired…

Computer Vision and Pattern Recognition · Computer Science 2025-12-15 Zhenghui Zhao , Chen Wu , Di Wang , Hongruixuan Chen , Cuiqun Chen , Zhuo Zheng , Bo Du , Liangpei Zhang

We propose TrendSegment, a methodology for detecting multiple change-points corresponding to linear trend changes in one dimensional data. A core ingredient of TrendSegment is a new Tail-Greedy Unbalanced Wavelet transform: a conditionally…

Methodology · Statistics 2023-01-09 Hyeyoung Maeng , Piotr Fryzlewicz

Modern scene text recognition systems often depend on large end-to-end architectures that require extensive training and are prohibitively expensive for real-time scenarios. In such cases, the deployment of heavy models becomes impractical…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Ritabrata Chakraborty , Shivakumara Palaiahnakote , Umapada Pal , Cheng-Lin Liu

Many tasks are related to determining if a particular text string exists in an image. In this work, we propose a new framework that learns this task in an end-to-end way. The framework takes an image and a text string as input and then…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Dafang He , Yeqing Li , Alexander Gorban , Derrall Heath , Julian Ibarz , Qian Yu , Daniel Kifer , C. Lee Giles

The requirement of large amounts of annotated images has become one grand challenge while training deep neural network models for various visual detection and recognition tasks. This paper presents a novel image synthesis technique that…

Computer Vision and Pattern Recognition · Computer Science 2018-09-27 Fangneng Zhan , Shijian Lu , Chuhui Xue

Change detection has been a challenging visual task due to the dynamic nature of real-world scenes. Good performance of existing methods depends largely on prior background images or a long-term observation. These methods, however, suffer…

Computer Vision and Pattern Recognition · Computer Science 2018-11-21 Chao Chen , Sheng Zhang , Cuibing Du

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

Change detection in remote sensing imagery is essential for a variety of applications such as urban planning, disaster management, and climate research. However, existing methods for identifying semantically changed areas overlook the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Maximilian Bernhard , Niklas Strauß , Matthias Schubert

Text-based person retrieval aims to identify a target individual from an image gallery using a natural language description. Existing methods primarily focus on appearance-driven cross-modal retrieval, yet face significant challenges due to…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Yingjia Xu , Jinlin Wu , Daming Gao , Zhen Chen , Yang Yang , Min Cao , Mang Ye , Zhen Lei

Lexical Semantic Change (LSC) provides insight into cultural and social dynamics. Yet, the validity of methods for measuring different kinds of LSC remains unestablished due to the absence of historical benchmark datasets. To address this…

Computation and Language · Computer Science 2025-06-05 Naomi Baes , Raphaël Merx , Nick Haslam , Ekaterina Vylomova , Haim Dubossarsky

We introduce SELECT (Scene tExt Label Errors deteCTion), a novel approach that leverages multi-modal training to detect label errors in real-world scene text datasets. Utilizing an image-text encoder and a character-level tokenizer, SELECT…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Wenjun Liu , Qian Wu , Yifeng Hu , Yuke Li

Scene text detection techniques have garnered significant attention due to their wide-ranging applications. However, existing methods have a high demand for training data, and obtaining accurate human annotations is labor-intensive and…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Ling Fu , Zijie Wu , Yingying Zhu , Yuliang Liu , Xiang Bai

End-to-end scene text spotting has attracted great attention in recent years due to the success of excavating the intrinsic synergy of the scene text detection and recognition. However, recent state-of-the-art methods usually incorporate…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Mingxin Huang , Yuliang Liu , Zhenghao Peng , Chongyu Liu , Dahua Lin , Shenggao Zhu , Nicholas Yuan , Kai Ding , Lianwen Jin

Change detection (CD) is a fundamental task in remote sensing (RS) which aims to detect the semantic changes between the same geographical regions at different time stamps. Existing convolutional neural networks (CNNs) based approaches…

Computer Vision and Pattern Recognition · Computer Science 2024-04-29 Mubashir Noman , Mustansar Fiaz , Hisham Cholakkal

Recognizing texts from camera images is a known hard problem because of the difficulties in text detection from the varied and complicated background. In this paper we propose a novel and efficient method to detect text region from images…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Basavaraj Kaladagi , Jagadeesh Pujari

Semantic change detection (SCD) extends the binary change detection task to provide not only the change locations but also the detailed "from-to" categories in multi-temporal remote sensing data. Such detailed semantic insights into changes…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Zhengyi Xu , Haoran Wu , Wen Jiang , Jie Geng

Automated change detection in remote sensing imagery is critical for urban management, environmental monitoring, and disaster assessment. While deep learning models have advanced this field, they often struggle with challenges like low…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Emad Gholibeigi , Abbas Koochari , Azadeh ZamaniFar

Source-free object detection (SFOD) faces persistent challenges due to class imbalance-driven context bias and instability in teacher-student training under noisy pseudo-labels. Existing techniques tend to ignore context bias and…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Tajamul Ashraf , Rajes Manna , Partha Sarathi Purkayastha , Tavaheed Tariq , Janibul Bashir

We propose an adversarial contextual model for detecting moving objects in images. A deep neural network is trained to predict the optical flow in a region using information from everywhere else but that region (context), while another…

Computer Vision and Pattern Recognition · Computer Science 2019-04-16 Yanchao Yang , Antonio Loquercio , Davide Scaramuzza , Stefano Soatto

Continual Test-Time Adaptation (CTTA) aims to adapt the source model to continually changing unlabeled target domains without access to the source data. Existing methods mainly focus on model-based adaptation in a self-training manner, such…

Computer Vision and Pattern Recognition · Computer Science 2023-02-14 Yulu Gan , Yan Bai , Yihang Lou , Xianzheng Ma , Renrui Zhang , Nian Shi , Lin Luo