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Big Geo-Spatial Data and Advanced 3D Modelling in GIS and Satellite

A special issue of Remote Sensing (ISSN 2072-4292). This special issue belongs to the section "Remote Sensing and Geo-Spatial Science".

Deadline for manuscript submissions: 20 September 2024 | Viewed by 945

Special Issue Editors


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Guest Editor
Department of Computer Science, University of Jaén, 23071 Jaén, Spain
Interests: photogrammetry; computational geometry; visibility; urban modeling; GIS

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Guest Editor
Cartographic, Geodetic and Photogrammetric Engineering Department, University of Jaén, 23071 Jaén, Spain
Interests: precision farming; remote sensing; spatial data mining; geospatial data

Special Issue Information

Dear Colleagues,

Remote sensing has become widespread in the last decade thanks to the advancement of sensing devices, coupled with both satellites and aerial vehicles such as UAVs (unmanned aerial vehicles). They are able to generate massive datasets with a high spatial resolution, which involves many different challenges for their processing. The captured information has a marked spatial character and can change over time across different captures, requiring spatiotemporal information systems. On the other hand, the capture of a unique data type may not be sufficient, requiring multi-source data fusion of heterogeneous data. Furthermore, the real world is three-dimensional, and 3D modelling describes the geometry and appearance of real scenarios, providing the user with a more accurate scene understanding.  In summary, challenges are focused on techniques for storage, data mining, spatiotemporal analysis, edge computing, machine and deep learning, object detection or semantic classification, among many others. Advances in this area have a direct impact on broad fields of knowledge such as precision agriculture, ecology or territorial configuration.

Dr. Lidia M. Ortega Alvarado
Dr. María I. Ramos Galan
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Remote Sensing is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • remote sensing from satellite and UAV (unmanned aerial vehicles) sources
  • massive dataset processing
  • spatiotemporal information systems
  • data analysis including data mining and machine and deep learning
  • imagery and 3D point cloud fusion
  • ecology and precision agriculture

Published Papers (1 paper)

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Research

27 pages, 17596 KiB  
Article
Automating Ground Control Point Detection in Drone Imagery: From Computer Vision to Deep Learning
by Gonzalo Muradás Odriozola, Klaas Pauly, Samuel Oswald and Dries Raymaekers
Remote Sens. 2024, 16(5), 794; https://doi.org/10.3390/rs16050794 - 24 Feb 2024
Viewed by 713
Abstract
Drone-based photogrammetry typically requires the task of georeferencing aerial images by detecting the center of Ground Control Points (GCPs) placed in the field. Since this is a very labor-intensive task, it could benefit greatly from automation. In this study, we explore the extent [...] Read more.
Drone-based photogrammetry typically requires the task of georeferencing aerial images by detecting the center of Ground Control Points (GCPs) placed in the field. Since this is a very labor-intensive task, it could benefit greatly from automation. In this study, we explore the extent to which traditional computer vision approaches can be generalized to deal with variability in real-world drone data sets and focus on training different residual neural networks (ResNet) to improve generalization. The models were trained to detect single keypoints of fixed-sized image tiles with a historic collection of drone-based Red–Green–Blue (RGB) images with black and white GCP markers in which the center was manually labeled by experienced photogrammetry operators. Different depths of ResNets and various hyperparameters (learning rate, batch size) were tested. The best results reached sub-pixel accuracy with a mean absolute error of 0.586. The paper demonstrates that this approach to drone-based mapping is a promising and effective way to reduce the human workload required for georeferencing aerial images. Full article
(This article belongs to the Special Issue Big Geo-Spatial Data and Advanced 3D Modelling in GIS and Satellite)
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