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We introduce a new deep learning method for point cloud comparison. Our approach, named Deep Point Cloud Distance (DPDist), measures the distance between the points in one cloud and the estimated surface from which the other point cloud is…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Dahlia Urbach , Yizhak Ben-Shabat , Michael Lindenbaum

This work explores capabilities of the pre-trained CLIP vision-language model to identify satellite images affected by clouds. Several approaches to using the model to perform cloud presence detection are proposed and evaluated, including a…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Mikolaj Czerkawski , Robert Atkinson , Christos Tachtatzis

In this paper we present a novel method to identify and characterize stellar clusters deeply embedded in a dark molecular cloud. The method is based on measuring stellar surface density in wide-field infrared images using star counting…

Instrumentation and Methods for Astrophysics · Physics 2017-11-29 Marco Lombardi , Charles J. Lada , Joao Alves

Cloud occlusion significantly hinders remote sensing applications by obstructing surface information and complicating analysis. To address this, we propose DC4CR (Diffusion Control for Cloud Removal), a novel multimodal diffusion-based…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Zhenyu Yu , Mohd Yamani Idna Idris , Pei Wang

Deep learning has led to many recent advances in object detection and instance segmentation, among other computer vision tasks. These advancements have led to wide application of deep learning based methods and related methodologies in…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Chintan Tundia , Rajiv Kumar , Om Damani , G. Sivakumar

Satellite image classification is a challenging problem that lies at the crossroads of remote sensing, computer vision, and machine learning. Due to the high variability inherent in satellite data, most of the current object classification…

Computer Vision and Pattern Recognition · Computer Science 2019-11-19 Qun Liu , Saikat Basu , Sangram Ganguly , Supratik Mukhopadhyay , Robert DiBiano , Manohar Karki , Ramakrishna Nemani

Time domain astronomy has emerged as a vibrant research field in recent years, focusing on celestial objects that exhibit variable magnitudes or positions. Given the urgency of conducting follow-up observations for such objects, the…

Instrumentation and Methods for Astrophysics · Physics 2023-10-12 Rui Sun , Peng Jia , Yongyang Sun , Zhimin Yang , Qiang Liu , Hongyan Wei

Addressing the issue of submerged underwater trash is crucial for safeguarding aquatic ecosystems and preserving marine life. While identifying debris present on the surface of water bodies is straightforward, assessing the underwater…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Jaskaran Singh Walia , Pavithra L K

We propose a method for detecting face swapping and other identity manipulations in single images. Face swapping methods, such as DeepFake, manipulate the face region, aiming to adjust the face to the appearance of its context, while…

Computer Vision and Pattern Recognition · Computer Science 2020-08-28 Yuval Nirkin , Lior Wolf , Yosi Keller , Tal Hassner

Mask-based lensless cameras replace the lens of a conventional camera with a custom mask. These cameras can potentially be very thin and even flexible. Recently, it has been demonstrated that such mask-based cameras can recover light…

Image and Video Processing · Electrical Eng. & Systems 2020-06-22 Yucheng Zheng , M. Salman Asif

Filling missing data in cloud-covered areas of satellite imaging is an important task to improve data quantity and quality for enhanced earth observation. Traditional cloud filling studies focused on continuous numerical data such as…

Machine Learning · Computer Science 2022-05-02 Ruo-Qian Wang

When 3D-point clouds from overhead sensors are used as input to remote sensing data exploitation pipelines, a large amount of effort is devoted to data preparation. Among the multiple stages of the preprocessing chain, estimating the…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 Mohammed Yousefhussien , David J. Kelbe , Carl Salvaggio

Hashing has been widely used in approximate nearest search for large-scale database retrieval for its computation and storage efficiency. Deep hashing, which devises convolutional neural network architecture to exploit and extract the…

Computer Vision and Pattern Recognition · Computer Science 2020-06-11 Xiaopeng Zhang

Reconstruction of a continuous surface of two-dimensional manifold from its raw, discrete point cloud observation is a long-standing problem. The problem is technically ill-posed, and becomes more difficult considering that various sensing…

Computer Vision and Pattern Recognition · Computer Science 2022-05-06 Zhangjin Huang , Yuxin Wen , Zihao Wang , Jinjuan Ren , Kui Jia

Cloud-based overlays are often present in optical remote sensing images, thus limiting the application of acquired data. Removing clouds is an indispensable pre-processing step in remote sensing image analysis. Deep learning has achieved…

Computer Vision and Pattern Recognition · Computer Science 2019-01-04 Daoyu Lin , Guangluan Xu , Xiaoke Wang , Yang Wang , Xian Sun , Kun Fu

Surface cracks on buildings, natural walls and underground mine tunnels can indicate serious structural integrity issues that threaten the safety of the structure and people in the environment. Timely detection and monitoring of cracks are…

Computer Vision and Pattern Recognition · Computer Science 2021-11-24 Faris Azhari , Charlotte Sennersten , Michael Milford , Thierry Peynot

Object detection is one of the fundamental objectives in Applied Computer Vision. In some of the applications, object detection becomes very challenging such as in the case of satellite image processing. Satellite image processing has…

Computer Vision and Pattern Recognition · Computer Science 2021-04-26 Arsalan Tahir , Muhammad Adil , Arslan Ali

With the rapid growth of mobile applications and cloud computing, mobile cloud computing has attracted great interest from both academia and industry. However, mobile cloud applications are facing security issues such as data integrity,…

Cryptography and Security · Computer Science 2017-12-19 Khoi Khac Nguyen , Dinh Thai Hoang , Dusit Niyato , Ping Wang , Diep Nguyen , Eryk Dutkiewicz

Recently, image manipulation has achieved rapid growth due to the advancement of sophisticated image editing tools. A recent surge of generated fake imagery and videos using neural networks is DeepFake. DeepFake algorithms can create fake…

Computer Vision and Pattern Recognition · Computer Science 2022-06-01 Naciye Celebi , Qingzhong Liu , Muhammed Karatoprak

About half of all optical observations collected via spaceborne satellites are affected by haze or clouds. Consequently, cloud coverage affects the remote sensing practitioner's capabilities of a continuous and seamless monitoring of our…

Computer Vision and Pattern Recognition · Computer Science 2022-03-18 Patrick Ebel , Yajin Xu , Michael Schmitt , Xiaoxiang Zhu