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Two factors have proven to be very important to the performance of semantic segmentation models: global context and multi-level semantics. However, generating features that capture both factors always leads to high computational complexity,…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Qi Song , Kangfu Mei , Rui Huang

Change detection, which aims to distinguish surface changes based on bi-temporal images, plays a vital role in ecological protection and urban planning. Since high resolution (HR) images cannot be typically acquired continuously over time,…

Image and Video Processing · Electrical Eng. & Systems 2021-06-24 Mengxi Liu , Qian Shi , Andrea Marinoni , Da He , Xiaoping Liu , Liangpei Zhang

Synthetic aperture radar (SAR) imaging, celebrated for its high resolution, all-weather capability, and day-night operability, is indispensable for maritime applications. However, ship detection in SAR imagery faces significant challenges,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-13 Congxia Zhao , Xiongjun Fu , Jian Dong , Shen Cao , Chunyan Zhang

Recently, the application of deep learning to change detection (CD) has significantly progressed in remote sensing images. In recent years, CD tasks have mostly used architectures such as CNN and Transformer to identify these changes.…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Jia Jia , Geunho Lee , Zhibo Wang , Lyu Zhi , Yuchu He

Accurate flood detection in near real time via high resolution, high latency satellite imagery is essential to prevent loss of lives by providing quick and actionable information. Instruments and sensors useful for flood detection are only…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Peri Akiva , Matthew Purri , Kristin Dana , Beth Tellman , Tyler Anderson

In this research, a novel robust change detection approach is presented for imbalanced multi-temporal synthetic aperture radar (SAR) image based on deep learning. Our main contribution is to develop a novel method for generating difference…

Computer Vision and Pattern Recognition · Computer Science 2020-03-05 Xinzheng Zhang , Hang Su , Ce Zhang , Peter M. Atkinson , Xiaoheng Tan , Xiaoping Zeng , Xin Jian

The advancement of deep learning technology has enabled us to develop systems that outperform any other classification technique. However, success of any empirical system depends on the quality and diversity of the data available to train…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Fahim Faisal Niloy , Arif , Abu Bakar Siddik Nayem , Anis Sarker , Ovi Paul , M. Ashraful Amin , Amin Ahsan Ali , Moinul Islam Zaber , AKM Mahbubur Rahman

Despite the remarkable advances in visual saliency analysis for natural scene images (NSIs), salient object detection (SOD) for optical remote sensing images (RSIs) still remains an open and challenging problem. In this paper, we propose an…

Computer Vision and Pattern Recognition · Computer Science 2021-02-03 Qijian Zhang , Runmin Cong , Chongyi Li , Ming-Ming Cheng , Yuming Fang , Xiaochun Cao , Yao Zhao , Sam Kwong

As the severity and occurrence of flood events tend to intensify with climate change, the need for flood forecasting capability increases. In this regard, the Flood Detection, Alert and rapid Mapping (FloodDAM) project, funded by Space for…

Image and Video Processing · Electrical Eng. & Systems 2023-01-25 Thanh Huy Nguyen , Sophie Ricci , Andrea Piacentini , Christophe Fatras , Peter Kettig , Gwendoline Blanchet , Santiago Pena Luque , Simon Baillarin

The goal of video anomaly detection is tantamount to performing spatio-temporal localization of abnormal events in the video. The multiscale temporal dependencies, visual-semantic heterogeneity, and the scarcity of labeled data exhibited by…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Dezhi An , Wenqiang Liu , Kefan Wang , Zening Chen , Jun Lu , Shengcai Zhang

The recently developed transformer networks have achieved impressive performance in image denoising by exploiting the self-attention (SA) in images. However, the existing methods mostly use a relatively small window to compute SA due to the…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Shi Guo , Hongwei Yong , Xindong Zhang , Jianqi Ma , Lei Zhang

While Magnetic Resonance Imaging (MRI) has played an essential role in infant brain analysis, segmenting MRI into a number of tissues such as gray matter (GM), white matter (WM), and cerebrospinal fluid (CSF) is crucial and complex due to…

Image and Video Processing · Electrical Eng. & Systems 2021-12-28 Dinh-Hieu Hoang , Gia-Han Diep , Minh-Triet Tran , Ngan T. H Le

Most post-disaster damage classifiers succeed only when destructive forces leave clear spectral or structural signatures -- conditions rarely present after inundation. Consequently, existing models perform poorly at identifying…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Yu-Hsuan Ho , Ali Mostafavi

Rain streaks and rain drops are two natural phenomena, which degrade image capture in different ways. Currently, most existing deep deraining networks take them as two distinct problems and individually address one, and thus cannot deal…

Computer Vision and Pattern Recognition · Computer Science 2021-10-20 Kaihao Zhang , Dongxu Li , Wenhan Luo , Wenqi Ren

Flood simulation and forecast capability have been greatly improved thanks to advances in data assimilation. Such an approach combines in-situ gauge measurements with numerical hydrodynamic models to correct the hydraulic states and reduce…

Image and Video Processing · Electrical Eng. & Systems 2022-02-07 Thanh Huy Nguyen , Sophie Ricci , Christophe Fatras , Andrea Piacentini , Anthéa Delmotte , Emeric Lavergne , Peter Kettig

In this paper, we address two critical challenges in the domain of flood detection: the computational expense of large-scale time series change detection and the lack of interpretable decision-making processes on explainable AI (XAI). To…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Ziyang Zhang , Plamen Angelov , Dmitry Kangin , Nicolas Longépé

Given two multi-temporal aerial images, semantic change detection aims to locate the land-cover variations and identify their change types with pixel-wise boundaries. This problem is vital in many earth vision related tasks, such as precise…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Kunping Yang , Gui-Song Xia , Zicheng Liu , Bo Du , Wen Yang , Marcello Pelillo , Liangpei Zhang

Generic event boundary detection is an important yet challenging task in video understanding, which aims at detecting the moments where humans naturally perceive event boundaries. The main challenge of this task is perceiving various…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Jiaqi Tang , Zhaoyang Liu , Chen Qian , Wayne Wu , Limin Wang

Despite the eye-catching breakthroughs achieved by deep visual networks in detecting region-level surface defects, the challenge of high-quality pixel-wise defect detection remains due to diverse defect appearances and data scarcity. To…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Biyuan Liu , Huaixin Chen , Huiyao Zhan , Sijie Luo , Zhou Huang

Change detection, i.e. identification per pixel of changes for some classes of interest from a set of bi-temporal co-registered images, is a fundamental task in the field of remote sensing. It remains challenging due to unrelated forms of…

Computer Vision and Pattern Recognition · Computer Science 2021-09-20 Foivos I. Diakogiannis , François Waldner , Peter Caccetta