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We present a robotic system capable of navigating autonomously by following a line and taking good quality pictures of people. When a group of people are detected, the robot rotates towards them and then back to line while continuously…

Robotics · Computer Science 2019-04-12 Rhys Newbury , Akansel Cosgun , Mehmet Koseoglu , Tom Drummond

Self-driving vehicles and autonomous ground robots require a reliable and accurate method to analyze the traversability of the surrounding environment for safe navigation. This paper proposes and evaluates a real-time machine learning-based…

Effective space traffic management requires positive identification of artificial satellites. Current methods for extracting object identification from observed data require spatially resolved imagery which limits identification to objects…

Machine Learning · Computer Science 2022-01-12 J. Zachary Gazak , Ian McQuaid , Ryan Swindle , Matthew Phelps , Justin Fletcher

Progress has been achieved recently in object detection given advancements in deep learning. Nevertheless, such tools typically require a large amount of training data and significant manual effort to label objects. This limits their…

Robotics · Computer Science 2017-08-04 Chaitanya Mitash , Kostas E. Bekris , Abdeslam Boularias

Aerial image segmentation is the basis for applications such as automatically creating maps or tracking deforestation. In true orthophotos, which are often used in these applications, many objects and regions can be approximated well by…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Daniel Gritzner , Jörn Ostermann

Many remote sensing applications employ masking of pixels in satellite imagery for subsequent measurements. For example, estimating water quality variables, such as Suspended Sediment Concentration (SSC) requires isolating pixels depicting…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Rangel Daroya , Luisa Vieira Lucchese , Travis Simmons , Punwath Prum , Tamlin Pavelsky , John Gardner , Colin J. Gleason , Subhransu Maji

Mobile ground robots require perceiving and understanding their surrounding support surface to move around autonomously and safely. The support surface is commonly estimated based on exteroceptive depth measurements, e.g., from LiDARs.…

Robotics · Computer Science 2023-05-16 Anqiao Li , Chenyu Yang , Jonas Frey , Joonho Lee , Cesar Cadena , Marco Hutter

Self-supervised tasks have been utilized to build useful representations that can be used in downstream tasks when the annotation is unavailable. In this paper, we introduce a self-supervised video representation learning method based on…

Computer Vision and Pattern Recognition · Computer Science 2021-02-23 Duc Quang Vu , Ngan T. H. Le , Jia-Ching Wang

In computer vision, a prevailing method for quantifying dataset bias is to train a model to distinguish between datasets. High classification accuracy is then interpreted as evidence of meaningful semantic differences. This approach assumes…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Amir Hossein Saleknia , Mohammad Sabokrou

The upcoming Square Kilometer Array (SKA) telescope marks a significant step forward in radio astronomy, presenting new opportunities and challenges for data analysis. Traditional visual models pretrained on optical photography images may…

Instrumentation and Methods for Astrophysics · Physics 2024-11-25 Thomas Cecconello , Simone Riggi , Ugo Becciani , Fabio Vitello , Andrew M. Hopkins , Giuseppe Vizzari , Concetto Spampinato , Simone Palazzo

We present a self-supervised learning (SSL) method suitable for semi-global tasks such as object detection and semantic segmentation. We enforce local consistency between self-learned features, representing corresponding image locations of…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Ashraful Islam , Ben Lundell , Harpreet Sawhney , Sudipta Sinha , Peter Morales , Richard J. Radke

This paper explores the application of machine learning methods for classifying astronomical sources using photometric data, including normal and emission line galaxies (ELGs; starforming, starburst, AGN, broad line), quasars, and stars. We…

Deep convolutional neural network models pre-trained for the ImageNet classification task have been successfully adopted to tasks in other domains, such as texture description and object proposal generation, but these tasks require…

Computer Vision and Pattern Recognition · Computer Science 2017-07-14 Xiu-Shen Wei , Jian-Hao Luo , Jianxin Wu , Zhi-Hua Zhou

Taking advantage of human pose data for understanding human activities has attracted much attention these days. However, state-of-the-art pose estimators struggle in obtaining high-quality 2D or 3D pose data due to occlusion, truncation and…

Computer Vision and Pattern Recognition · Computer Science 2020-11-12 Di Yang , Rui Dai , Yaohui Wang , Rupayan Mallick , Luca Minciullo , Gianpiero Francesca , Francois Bremond

Machine learning-based seismic processing models are typically trained separately to perform specific seismic processing tasks (SPTs), and as a result, require plenty of training data. However, preparing training data sets is not trivial,…

Geophysics · Physics 2023-09-21 Shijun Cheng , Randy Harsuko , Tariq Alkhalifah

Thin nanomaterials are key constituents of modern quantum technologies and materials research. Identifying specimens of these materials with properties required for the development of state of the art quantum devices is usually a complex…

Most existing star-galaxy classifiers depend on the reduced information from catalogs, necessitating careful data processing and feature extraction. In this study, we employ a supervised machine learning method (GoogLeNet) to automatically…

Astrophysics of Galaxies · Physics 2024-09-23 Shiliang Zhang , Guanwen Fang , Jie Song , Ran Li , Yizhou Gu , Zesen Lin , Chichun Zhou , Yao Dai , Xu Kong

Machine learning models can greatly improve the search for strong gravitational lenses in imaging surveys by reducing the amount of human inspection required. In this work, we test the performance of supervised, semi-supervised, and…

Astrophysics of Galaxies · Physics 2023-08-17 Keerthi Vasan G. C. , Stephen Sheng , Tucker Jones , Chi Po Choi , James Sharpnack

Progress in self-supervised learning has brought strong general image representation learning methods. Yet so far, it has mostly focused on image-level learning. In turn, tasks such as unsupervised image segmentation have not benefited from…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Adrian Ziegler , Yuki M. Asano

We present a two-component Machine Learning (ML) based approach for classifying astronomical images by data-quality via an examination of sources detected in the images and image pixel values from representative sources within those images.…

Instrumentation and Methods for Astrophysics · Physics 2020-04-01 Hossen Teimoorinia , J. J. Kavelaars , Stephen Gwyn , Daniel Durand , Kennedy Rolston , Alexander Ouellette