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Shadows cast by terrain and tall structures remain a major obstacle for high-resolution satellite image analysis, degrading classification, detection, and 3D reconstruction performance. Public resources offering geometry-consistent paired…

计算机视觉与模式识别 · 计算机科学 2026-05-06 Lorenzo Beltrame , Jules Salzinger , Filip Svoboda , Phillipp Fanta-Jende , Jasmin Lampert , Radu Timofte , Marco Körner

Shadows are a prevalent problem in remote sensing imagery (RSI), degrading visual quality and severely limiting the performance of downstream tasks like object detection and semantic segmentation. Most prior works treat shadow detection and…

计算机视觉与模式识别 · 计算机科学 2026-05-13 Zi-Yang Bo , Wei Lu , Hongruixuan Chen , Si-Bao Chen , Bin Luo

Recent advancements in deep learning have yielded promising results for the image shadow removal task. However, most existing methods rely on binary pre-generated shadow masks. The binary nature of such masks could potentially lead to…

计算机视觉与模式识别 · 计算机科学 2025-03-13 Xinrui Wang , Lanqing Guo , Xiyu Wang , Siyu Huang , Bihan Wen

Shadow removal is an essential task in computer vision and computer graphics. Recent shadow removal approaches all train convolutional neural networks (CNN) on real paired shadow/shadow-free or shadow/shadow-free/mask image datasets.…

计算机视觉与模式识别 · 计算机科学 2021-02-16 Naoto Inoue , Toshihiko Yamasaki

We explore the task of geometric reconstruction of images captured from a mixture of ground and aerial views. Current state-of-the-art learning-based approaches fail to handle the extreme viewpoint variation between aerial-ground image…

计算机视觉与模式识别 · 计算机科学 2025-04-18 Khiem Vuong , Anurag Ghosh , Deva Ramanan , Srinivasa Narasimhan , Shubham Tulsiani

Most shadow removal methods rely on the invasion of training images associated with laborious and lavish shadow region annotations, leading to the increasing popularity of shadow image synthesis. However, the poor performance also stems…

计算机视觉与模式识别 · 计算机科学 2023-07-11 Yunshan Zhong , Lizhou You , Yuxin Zhang , Fei Chao , Yonghong Tian , Rongrong Ji

Recent deep learning methods have achieved promising results in image shadow removal. However, their restored images still suffer from unsatisfactory boundary artifacts, due to the lack of degradation prior embedding and the deficiency in…

计算机视觉与模式识别 · 计算机科学 2022-12-14 Lanqing Guo , Chong Wang , Wenhan Yang , Siyu Huang , Yufei Wang , Hanspeter Pfister , Bihan Wen

Shadow removal is still a challenging task due to its inherent background-dependent and spatial-variant properties, leading to unknown and diverse shadow patterns. Even powerful state-of-the-art deep neural networks could hardly recover…

计算机视觉与模式识别 · 计算机科学 2021-04-13 Lan Fu , Changqing Zhou , Qing Guo , Felix Juefei-Xu , Hongkai Yu , Wei Feng , Yang Liu , Song Wang

Shadows are often under-considered or even ignored in image editing applications, limiting the realism of the edited results. In this paper, we introduce MetaShadow, a three-in-one versatile framework that enables detection, removal, and…

计算机视觉与模式识别 · 计算机科学 2024-12-04 Tianyu Wang , Jianming Zhang , Haitian Zheng , Zhihong Ding , Scott Cohen , Zhe Lin , Wei Xiong , Chi-Wing Fu , Luis Figueroa , Soo Ye Kim

The use of unmanned aerial systems (UASs) has increased tremendously in the current decade. They have significantly advanced remote sensing with the capability to deploy and image the terrain as per required spatial, spectral, temporal, and…

计算机视觉与模式识别 · 计算机科学 2025-09-12 Yibin Wang , Wondimagegn Beshah , Padmanava Dash , Haifeng Wang

Image alignment and image restoration are classical computer vision tasks. However, there is still a lack of datasets that provide enough data to train and evaluate end-to-end deep learning models. Obtaining ground-truth data for image…

计算机视觉与模式识别 · 计算机科学 2024-03-05 Monika Kwiatkowski , Simon Matern , Olaf Hellwich

We propose a novel deep learning method for shadow removal. Inspired by physical models of shadow formation, we use a linear illumination transformation to model the shadow effects in the image that allows the shadow image to be expressed…

计算机视觉与模式识别 · 计算机科学 2021-11-10 Hieu Le , Dimitris Samaras

Shadows in scanned documents pose significant challenges for document analysis and recognition tasks due to their negative impact on visual quality and readability. Current shadow removal techniques, including traditional methods and deep…

计算机视觉与模式识别 · 计算机科学 2024-07-31 Ziyang Zhou , Yingtie Lei , Xuhang Chen , Shenghong Luo , Wenjun Zhang , Chi-Man Pun , Zhen Wang

Astronomical imaging remains noise-limited under practical observing conditions. Standard calibration pipelines remove structured artifacts but largely leave stochastic noise unresolved. Although learning-based denoising has shown strong…

天体物理仪器与方法 · 物理学 2026-03-17 Shuhong Liu , Xining Ge , Ziying Gu , Quanfeng Xu , Lin Gu , Ziteng Cui , Xuangeng Chu , Jun Liu , Dong Li , Tatsuya Harada

Shadows are a common factor degrading image quality. Single-image shadow removal (SR), particularly under challenging indirect illumination, is hampered by non-uniform content degradation and inherent ambiguity. Consequently, traditional…

计算机视觉与模式识别 · 计算机科学 2025-07-23 Yu-Fan Lin , Chia-Ming Lee , Chih-Chung Hsu

Image shadow removal is a crucial task in computer vision. In real-world scenes, shadows alter image color and brightness, posing challenges for perception and texture recognition. Traditional and deep learning methods often overlook the…

计算机视觉与模式识别 · 计算机科学 2025-02-20 Jiajia Liang

Shadows significantly hinder computer vision tasks in outdoor environments, particularly in field robotics, where varying lighting conditions complicate object detection and localisation. We present FieldNet, a novel deep learning framework…

计算机视觉与模式识别 · 计算机科学 2025-07-15 Alzayat Saleh , Alex Olsen , Jake Wood , Bronson Philippa , Mostafa Rahimi Azghadi

Circular Synthetic Aperture Sonar (CSAS) provides a 360{\deg} azimuth view of the seabed, surpassing the limited aperture and mono-view image of conventional side-scan SAS. This makes CSAS a valuable tool for target recognition in mine…

计算机视觉与模式识别 · 计算机科学 2026-01-26 Yann Le Gall , Nicolas Burlet , Mathieu Simon , Fabien Novella , Samantha Dugelay , Jean-Philippe Malkasse

We propose a novel deep learning method for shadow removal. Inspired by physical models of shadow formation, we use a linear illumination transformation to model the shadow effects in the image that allows the shadow image to be expressed…

计算机视觉与模式识别 · 计算机科学 2019-08-26 Hieu Le , Dimitris Samaras

Deep neural networks can be effective means to automatically classify aerial images but is easy to overfit to the training data. It is critical for trained neural networks to be robust to variations that exist between training and test…

计算机视觉与模式识别 · 计算机科学 2019-09-25 Jiayun Wang , Patrick Virtue , Stella X. Yu
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