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Accurate and high-resolution precipitation nowcasting from radar echo sequences is crucial for disaster mitigation and economic planning, yet it remains a significant challenge. Key difficulties include modeling complex multi-scale…

计算机视觉与模式识别 · 计算机科学 2026-04-20 Wenjie Luo , Chuanhu Deng , Chaorong Li , Rongyao Deng , Qiang Yang

We address the problem of decomposing an image into albedo and shading. We propose the Fast Fourier Intrinsic Network, FFI-Net in short, that operates in the spectral domain, splitting the input into several spectral bands. Weights in…

计算机视觉与模式识别 · 计算机科学 2020-11-10 Yanlin Qian , Miaojing Shi , Joni-Kristian Kämäräinen , Jiri Matas

Object detection in unmanned aerial vehicle (UAV) images remains a highly challenging task, primarily caused by the complexity of background noise and the imbalance of target scales. Traditional methods easily struggle to effectively…

计算机视觉与模式识别 · 计算机科学 2026-04-06 Wenfeng Zhang , Jun Ni , Yue Meng , Xiaodong Pei , Wei Hu , Qibing Qin , Lei Huang

Automated and accurate segmentation of individual vertebra in 3D CT and MRI images is essential for various clinical applications. Due to the limitations of current imaging techniques and the complexity of spinal structures, existing…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Jian Shi , Tianqi You , Pingping Zhang , Hongli Zhang , Rui Xu , Haojie Li

Image deblurring aims to restore the detailed texture information or structures from blurry images, which has become an indispensable step in many computer vision tasks. Although various methods have been proposed to deal with the image…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Yanni Zhang , Qiang Li , Miao Qi , Di Liu , Jun Kong , Jianzhong Wang

Previous low-light image enhancement (LLIE) approaches, while employing frequency decomposition techniques to address the intertwined challenges of low frequency (e.g., illumination recovery) and high frequency (e.g., noise reduction),…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Kun Zhou , Xinyu Lin , Wenbo Li , Xiaogang Xu , Yuanhao Cai , Zhonghang Liu , Xiaoguang Han , Jiangbo Lu

Previous unsupervised domain adaptation methods did not handle the cross-domain problem from the perspective of frequency for computer vision. The images or feature maps of different domains can be decomposed into the low-frequency…

计算机视觉与模式识别 · 计算机科学 2022-09-01 Zhaowen Li , Xu Zhao , Chaoyang Zhao , Ming Tang , Jinqiao Wang

Heterogeneous and complex networks represent intertwined interactions between real-world elements or agents. Determining the multi-scale mesoscopic organization of clusters and intertwined structures is still a fundamental and open problem…

物理与社会 · 物理学 2025-01-20 Pablo Villegas , Andrea Gabrielli , Anna Poggialini , Tommaso Gili

Purpose Medical imaging diagnosis faces challenges, including low-resolution images due to machine artifacts and patient movement. This paper presents the Frequency-Guided U-Net (GFNet), a novel approach for medical image segmentation that…

图像与视频处理 · 电气工程与系统科学 2024-05-03 Haytham Al Ewaidat , Youness El Brag , Ahmad Wajeeh Yousef E'layan , Ali Almakhadmeh

Images captured in harsh environments often exhibit blurred details, reduced contrast, and color distortion, which hinder feature detection and matching, thereby affecting the accuracy and robustness of homography estimation. While visual…

计算机视觉与模式识别 · 计算机科学 2025-03-19 Zeru Shi , Zengxi Zhang , Kemeng Cui , Ruizhe An , Jinyuan Liu , Zhiying Jiang

Image semantic segmentation aims at the pixel-level classification of images, which has requirements for both accuracy and speed in practical application. Existing semantic segmentation methods mainly rely on the high-resolution input to…

计算机视觉与模式识别 · 计算机科学 2022-11-07 Tianjiao Jiang , Yi Jin , Tengfei Liang , Xu Wang , Yidong Li

Existing deep learning approaches leave out the semantic cues that are crucial in semantic segmentation present in complex scenarios including cluttered backgrounds and translucent objects, etc. To handle these challenges, we propose a…

计算机视觉与模式识别 · 计算机科学 2024-07-15 Muhammad Ali , Mamoona Javaid , Mubashir Noman , Mustansar Fiaz , Salman Khan

Road disease detection is challenging due to the the small proportion of road damage in target region and the diverse background,which introduce lots of domain information.Besides, disease categories have high similarity,makes the detection…

计算机视觉与模式识别 · 计算机科学 2023-10-10 Juwu Zheng , Jiangtao Ren

In the last few years, the fusion of multi-modal data has been widely studied for various applications such as robotics, gesture recognition, and autonomous navigation. Indeed, high-quality visual sensors are expensive, and consumer-grade…

图像与视频处理 · 电气工程与系统科学 2024-11-13 Aditya Kasliwal , Ishaan Gakhar , Aryan Kamani , Pratinav Seth , Ujjwal Verma

Semantic segmentation of multi-modal remote sensing imagery plays a pivotal role in land use/land cover (LULC) mapping, environmental monitoring, and precision earth observation. Current multi-modal approaches mainly focus on integrating…

计算机视觉与模式识别 · 计算机科学 2026-04-28 Jinkun Dai , Yuanxin Ye , Peng Tang , Tengfeng Tang , Xianping Ma , Jing Xiao , Mi Wang

Singing melody extraction is an important problem in the field of music information retrieval. Existing methods typically rely on frequency-domain representations to estimate the sung frequencies. However, this design does not lead to…

音频与语音处理 · 电气工程与系统科学 2022-02-03 Ke Chen , Shuai Yu , Cheng-i Wang , Wei Li , Taylor Berg-Kirkpatrick , Shlomo Dubnov

The study of the interactions among different types of interconnected systems in complex networks has attracted significant interest across many research fields. However, effective signal processing over layered networks requires…

信号处理 · 电气工程与系统科学 2025-04-11 Stefania Sardellitti , Breno C. Bispo , Fernando A. N. Santos , Juliano B. Lima

Remote sensing semantic segmentation requires models that can jointly capture fine spatial details and high-level semantic context across complex scenes. While classical encoder-decoder architectures such as U-Net remain strong baselines,…

计算机视觉与模式识别 · 计算机科学 2026-05-01 Md Aminur Hossain , Ayush V. Patel , Siddhant Gole , Sanjay K. Singh , Biplab Banerjee

Structural optimization is essential for designing safe, efficient, and durable components with minimal material usage. Traditional methods for vibration control often rely on active systems to mitigate unpredictable vibrations, which may…

计算物理 · 物理学 2024-12-31 A. Tollardo , F. Cadini , M. Giglio , L. Lomazzi

Low dose computed tomography (LDCT) has attracted more and more attention in routine clinical diagnosis assessment, therapy planning, etc., which can reduce the dose of X-ray radiation to patients. However, the noise caused by low X-ray…

图像与视频处理 · 电气工程与系统科学 2021-07-06 Zhicheng Zhang , Lequan Yu , Xiaokun Liang , Wei Zhao , Lei Xing
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