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Underwater environments pose significant challenges due to the selective absorption and scattering of light by water, which affects image clarity, contrast, and color fidelity. To overcome these, we introduce OceanLens, a method that models…

Image and Video Processing · Electrical Eng. & Systems 2024-11-21 Rajini Makam , Dhatri Shankari T M , Sharanya Patil , Suresh Sundram

We present two practical improvement techniques for unsupervised segmentation learning. These techniques address limitations in the resolution and accuracy of predicted segmentation maps of recent state-of-the-art methods. Firstly, we…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Alp Eren Sari , Francesco Locatello , Paolo Favaro

Supervised deep learning for land cover semantic segmentation (LCS) relies on labeled satellite data. However, most existing Sentinel-2 datasets are cloud-free, which limits their usefulness in tropical regions where clouds are common. To…

Computer Vision and Pattern Recognition · Computer Science 2025-10-06 Sara Mobsite , Renaud Hostache , Laure Berti Equille , Emmanuel Roux , Joris Guerin

Semantic segmentation of remote sensing images plays an important role in a wide range of applications including land resource management, biosphere monitoring and urban planning. Although the accuracy of semantic segmentation in remote…

Image and Video Processing · Electrical Eng. & Systems 2021-09-21 Rui Li , Shunyi Zheng , Chenxi Duan , Ce Zhang , Jianlin Su , P. M. Atkinson

Precise Soil Moisture (SM) assessment is essential in agriculture. By understanding the level of SM, we can improve yield irrigation scheduling which significantly impacts food production and other needs of the global population. The…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Muhammad Riaz Hasib Hossain , Muhammad Ashad Kabir

Super-resolution aims at increasing image resolution by algorithmic means and has progressed over the recent years due to advances in the fields of computer vision and deep learning. Convolutional Neural Networks based on a variety of…

Image and Video Processing · Electrical Eng. & Systems 2020-08-11 M. U. Müller , N. Ekhtiari , R. M. Almeida , C. Rieke

Accurate, detailed, and high-frequent bathymetry, coupled with complex semantic content, is crucial for the undermapped shallow seabed areas facing intense climatological and anthropogenic pressures. Current methods exploiting remote…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Panagiotis Agrafiotis , Łukasz Janowski , Dimitrios Skarlatos , Begüm Demir

In the modern world, satellite images play a key role in forest management and degradation monitoring. For a precise quantification of forest land cover changes, the availability of spatially fine resolution data is a necessity. Since 1972,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-07 Pritom Bose , Debolina Halder , Oliur Rahman , Turash Haque Pial

Remote sensing techniques have been increasingly utilised in aquatic applications in recent years. A common challenge in using optical satellite data is the presence of missing observations due to cloud cover. These data gaps can lead to…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Shuang Liua , Fiona Johnson , Rohitash Chandra

Satellite imagery is crucial for tasks like environmental monitoring and urban planning. Typically, it relies on semantic segmentation or Land Use Land Cover (LULC) classification to categorize each pixel. Despite the advancements brought…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Ionut M. Motoi , Leonardo Saraceni , Daniele Nardi , Thomas A. Ciarfuglia

Medical image segmentation has significantly benefitted thanks to deep learning architectures. Furthermore, semi-supervised learning (SSL) has recently been a growing trend for improving a model's overall performance by leveraging abundant…

Image and Video Processing · Electrical Eng. & Systems 2021-10-05 S. M. Kamrul Hasan , Cristian A. Linte

A commonly accepted hypothesis is that models with higher accuracy on Imagenet perform better on other downstream tasks, leading to much research dedicated to optimizing Imagenet accuracy. Recently this hypothesis has been challenged by…

Computer Vision and Pattern Recognition · Computer Science 2022-04-21 Niv Nayman , Avram Golbert , Asaf Noy , Tan Ping , Lihi Zelnik-Manor

Effective cloud and cloud shadow detection is a critical prerequisite for accurate retrieval of concentrations of atmospheric methane (CH4) or other trace gases in hyperspectral remote sensing. This challenge is especially pertinent for…

We describe a new class of subsampling techniques for CNNs, termed multisampling, that significantly increases the amount of information kept by feature maps through subsampling layers. One version of our method, which we call checkered…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Shayan Sadigh , Pradeep Sen

The semantic segmentation (SS) task aims to create a dense classification by labeling at the pixel level each object present on images. Convolutional neural network (CNN) approaches have been widely used, and exhibited the best results in…

Computer Vision and Pattern Recognition · Computer Science 2021-05-31 Darwin Saire , Adín Ramírez Rivera

We develop new algorithms for simultaneous learning of multiple tasks (e.g., image classification, depth estimation), and for adapting to unseen task/domain distributions within those high-level tasks (e.g., different environments). First,…

Machine Learning · Computer Science 2020-06-16 Kiran Lekkala , Laurent Itti

Erroneous feature matches have severe impact on subsequent camera pose estimation and often require additional, time-costly measures, like RANSAC, for outlier rejection. Our method tackles this challenge by addressing feature matching and…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Barbara Roessle , Matthias Nießner

Obtaining accurate photometric redshift estimations is an important aspect of cosmology, remaining a prerequisite of many analyses. In creating novel methods to produce redshift estimations, there has been a shift towards using machine…

Instrumentation and Methods for Astrophysics · Physics 2021-07-07 Ben Henghes , Connor Pettitt , Jeyan Thiyagalingam , Tony Hey , Ofer Lahav

Addressing gaps caused by cloud cover and the long revisit cycle of satellites is vital for providing essential data to support remote sensing applications. This paper tackles the challenges of missing optical data synthesis, particularly…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Chenxi Duan

Clouds frequently cover the Earth's surface and pose an omnipresent challenge to optical Earth observation methods. The vast majority of remote sensing approaches either selectively choose single cloud-free observations or employ a…

Computer Vision and Pattern Recognition · Computer Science 2018-12-04 Marc Rußwurm , Marco Körner