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Clouds and snow have similar spectral features in the visible and near-infrared (VNIR) range and are thus difficult to distinguish from each other in high resolution VNIR images. We address this issue by introducing a shortwave-infrared…

图像与视频处理 · 电气工程与系统科学 2022-01-10 Debvrat Varshney , Claudio Persello , Prasun Kumar Gupta , Bhaskar Ramachandra Nikam

Mapping buildings and roads automatically with remote sensing typically requires high-resolution imagery, which is expensive to obtain and often sparsely available. In this work we demonstrate how multiple 10 m resolution Sentinel-2 images…

We demonstrate structured illumination super-resolution imaging in the Terahertz (THz) frequency band using the Virtually Structured Detection (VSD) method. Leveraging our previously reported high-speed, high-sensitivity atomic-based THz…

光学 · 物理学 2025-06-17 James P. Fleming , Lucy A. Downes , John M. Girkin , Kevin J. Weatherill

Very-high-resolution (VHR) images can provide abundant ground details and spatial geometric information. Change detection in multi-temporal VHR images plays a significant role in urban expansion and area internal change analysis.…

图像与视频处理 · 电气工程与系统科学 2020-07-13 Hongruixuan Chen , Chen Wu , Bo Du , Liangpei Zhang

In this paper, we suggest a new neural network architecture for vanishing point detection in images. The key element is the use of the direct and transposed Fast Hough Transforms separated by convolutional layer blocks with standard…

计算机视觉与模式识别 · 计算机科学 2020-11-11 A. Sheshkus , A. Chirvonaya , D. Matveev , D. Nikolaev , V. L. Arlazarov

The image classification problem has been deeply investigated by the research community, with computer vision algorithms and with the help of Neural Networks. The aim of this paper is to build an image classifier for satellite images of…

计算机视觉与模式识别 · 计算机科学 2021-10-01 Jonas Bokstaller , Yihang She , Zhehan Fu , Tommaso Macrì

Semantic segmentation by convolutional neural networks (CNN) has advanced the state of the art in pixel-level classification of remote sensing images. However, processing large images typically requires analyzing the image in small patches,…

计算机视觉与模式识别 · 计算机科学 2020-08-25 Markku Luotamo , Sari Metsämäki , Arto Klami

In 2012, AlexNet established deep convolutional neural networks (DCNNs) as the state-of-the-art in CV, as these networks soon led in visual tasks for many domains, including remote sensing. With the publication of Visual Transformers, we…

计算机视觉与模式识别 · 计算机科学 2025-08-06 J. Alex Hurt , Trevor M. Bajkowski , Grant J. Scott , Curt H. Davis

Understanding how cities visually differ from each others is interesting for planners, residents, and historians. We investigate the interpretation of deep features learned by convolutional neural networks (CNNs) for city recognition. Given…

计算机视觉与模式识别 · 计算机科学 2019-05-07 Xiangwei Shi , Seyran Khademi , Jan van Gemert

Structures matter in single image super-resolution (SISR). Benefiting from generative adversarial networks (GANs), recent studies have promoted the development of SISR by recovering photo-realistic images. However, there are still undesired…

计算机视觉与模式识别 · 计算机科学 2021-09-28 Cheng Ma , Yongming Rao , Jiwen Lu , Jie Zhou

Most urban applications necessitate building footprints in the form of concise vector graphics with sharp boundaries rather than pixel-wise raster images. This need contrasts with the majority of existing methods, which typically generate…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Haojia Yu , Han Hu , Bo Xu , Qisen Shang , Zhendong Wang , Qing Zhu

Convolution is one of the most essential components of architectures used in computer vision. As machine learning moves towards reducing the expert bias and learning it from data, a natural next step seems to be learning convolution-like…

机器学习 · 计算机科学 2020-07-28 Behnam Neyshabur

Tree height estimation serves as an important proxy for biomass estimation in ecological and forestry applications. While traditional methods such as photogrammetry and Light Detection and Ranging (LiDAR) offer accurate height measurements,…

计算机视觉与模式识别 · 计算机科学 2024-12-04 Grace Colverd , Jumpei Takami , Laura Schade , Karol Bot , Joseph A. Gallego-Mejia

Snow avalanches present significant risks to human life and infrastructure, particularly in mountainous regions, making effective monitoring crucial. Traditional monitoring methods, such as field observations, are limited by accessibility,…

计算机视觉与模式识别 · 计算机科学 2025-02-26 Filippo Maria Bianchi , Jakob Grahn

Airborne LiDAR (Light Detection and Ranging) data is widely applied in building reconstruction, with studies reporting success in typical buildings. However, the reconstruction of curved buildings remains an open research problem. To this…

计算机视觉与模式识别 · 计算机科学 2021-02-24 Jingwei Song , Shaobo Xia , Jun Wang , Dong Chen

Convolutional neural networks can automatically learn features via deep network architectures and given input samples. However, the robustness of obtained models may face challenges in varying scenes. Bigger differences in network…

图像与视频处理 · 电气工程与系统科学 2025-10-21 Ziang Wu , Jinwei Xie , Xuanyu Zhang , Tao Wang , Yongjun Zhang , Qi Zhu , Chunwei Tian

Although some convolutional neural networks (CNNs) based super-resolution (SR) algorithms yield good visual performances on single images recently. Most of them focus on perfect perceptual quality but ignore specific needs of subsequent…

计算机视觉与模式识别 · 计算机科学 2020-04-02 Bin Wang , Tao Lu , Yanduo Zhang

Staircases are some of the most common building structures in urban environments. Stair detection is an important task for various applications, including the environmental perception of exoskeleton robots, humanoid robots, and rescue…

计算机视觉与模式识别 · 计算机科学 2022-02-07 Chen Wang , Zhongcai Pei , Shuang Qiu , Zhiyong Tang

Recently deep learning - namely convolutional neural networks (CNNs) - have yielded impressive performance for the task of building segmentation on large overhead (e.g., satellite) imagery benchmarks. However, these benchmark datasets only…

计算机视觉与模式识别 · 计算机科学 2020-06-19 Fanjie Kong , Bohao Huang , Kyle Bradbury , Jordan M. Malof

Convolutional neural networks (CNNs) have dominated the synthetic aperture radar (SAR) automatic target recognition (ATR) for years. However, under the limited SAR images, the width and depth of the CNN-based models are limited, and the…

图像与视频处理 · 电气工程与系统科学 2023-08-11 Chenwei Wang , Yulin Huang , Xiaoyu Liu , Jifang Pei , Yin Zhang , Jianyu Yang