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High Performance Computing of Remotely-Sensed Data

A special issue of Remote Sensing (ISSN 2072-4292). This special issue belongs to the section "Remote Sensing Image Processing".

Deadline for manuscript submissions: closed (31 March 2021) | Viewed by 7802

Special Issue Editors


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Guest Editor
Centro Singular de Investigación en Tecnoloxías Intelixentes (CiTIUS), University of Santiago de Compostela, Rúa de Jenaro de la Fuente Domínguez, 15782 - Santiago de Compostela, A Coruña, Spain
Interests: high performance computing in remote sensing; LiDAR data processing; FPGA-based computing; real-time data processing; hardware-software codesign

E-Mail Website
Guest Editor
Centro Singular de Investigación en Tecnoloxías Intelixentes (CiTIUS), University of Santiago de Compostela, Rúa de Jenaro de la Fuente Domínguez, 15782 - Santiago de Compostela, A Coruña, Spain
Interests: HPC; parallel computing; heterogeneous systems; LiDAR data processing

E-Mail Website
Guest Editor
Centro Singular de Investigación en Tecnoloxías Intelixentes (CiTIUS), University of Santiago de Compostela, Rúa de Jenaro de la Fuente Domínguez, 15782 - Santiago de Compostela, A Coruña, Spain
Interests: HPC; parallel computing; LiDAR data processing; performance analysis of parallel applications

E-Mail Website
Guest Editor
Centro Singular de Investigación en Tecnoloxías Intelixentes (CiTIUS), University of Santiago de Compostela, Rúa de Jenaro de la Fuente Domínguez, 15782 - Santiago de Compostela, A Coruña, Spain
Interests: HPC; parallel computing; big data processing; cloud computing; LiDAR data processing

Special Issue Information

Dear Colleagues,

Remote sensing applications exploit high volumes of data which demand high computation and memory bandwidth resources. Many of these applications can benefit from high-performance computing infrastructures and distributed processing systems based on homogeneous and heterogeneous processing resources. Suitable parallel solutions can provide speedups of several orders of magnitude over conventional PCs, allowing to accelerate the application development and target practical applications needing a fast response. This increase of computing speed allows focusing on developing new real-time applications which usually need to be processed onboard, close to the acquisition equipment. In this case, the aforementioned computer systems are not suitable because of weight or power consumption constraints. Emerging computing systems like FPGA or low-power GPUs are candidates for real-time remote sensed data processing.

This Special Issue of Remote Sensing aims to present state-of-the-art research on high-performance computing of remotely-sensed data, including multispectral, hyperspectral, LiDAR, and photogrammetry, among others. Papers are solicited on, but not limited to, the following research topics:

  • GPU-based accelerators and heterogeneous computing for remote sensing;
  • Hardware–software codesign for real time data processing;
  • Parallel computing approaches for nonstructured point clouds;
  • High-performance computing for deep learning, machine learning, and artificial intelligence in remote sensing;
  • Big data analytics for remotely sensed data;
  • Real-time remote sensing applications;
  • Edge and cloud computing for remote sensing.

Dr. David López Vilariño
Dr. Francisco Fernández Rivera
Dr. José Carlos Cabaleiro Domínguez
Dr. Tomás Fernández Pena
Guest Editor

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

  • GPU
  • parallel computing
  • real-time processing
  • cloud computing
  • heterogeneous computing

Published Papers (2 papers)

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Research

19 pages, 15286 KiB  
Article
GPU-Based Parallel Implementation of VLBI Correlator for Deep Space Exploration System
by Fan Zhang, Chenxi Zhao, Songtao Han, Fei Ma and Deliang Xiang
Remote Sens. 2021, 13(6), 1226; https://0-doi-org.brum.beds.ac.uk/10.3390/rs13061226 - 23 Mar 2021
Cited by 5 | Viewed by 2635
Abstract
Very Long Baseline Interferometry (VLBI) solution can yield accurate information of angular position, and has been successfully used in the field of deep space exploration, such as astrophysics, imaging, detector positioning, and so on. The increase in VLBI data volume puts higher demands [...] Read more.
Very Long Baseline Interferometry (VLBI) solution can yield accurate information of angular position, and has been successfully used in the field of deep space exploration, such as astrophysics, imaging, detector positioning, and so on. The increase in VLBI data volume puts higher demands on efficient processing. Essentially, the main step of VLBI is the correlation processing, through which the angular position can be calculated. Since the VLBI correlation processing is both computation-intensive and data-intensive, the CPU cluster is usually employed in practical application to perform complex distributed computation. In this paper, we propose a parallel implementation of VLBI correlator based on graphics processing unit (GPU) to realize a more efficient and economical angular position calculation of deep space target. On the basis of massively GPU parallel computing, the coalesced access strategy and the parallel pipeline strategy are introduced to further accelerate the VLBI correlator. Experimental results show that the optimized GPU-based VLBI method can meet the real-time processing requirements of the received data stream. Compared with the sequential method, the proposed approach can reach a 224.1 × calculation speedup, and a 36.8 × application speedup. Compared with the multi-CPUs method, it can achieve 28.6 × calculation speedup and 4.7 × application speedup. Full article
(This article belongs to the Special Issue High Performance Computing of Remotely-Sensed Data)
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22 pages, 6956 KiB  
Article
Big Data Geospatial Processing for Massive Aerial LiDAR Datasets
by David Deibe, Margarita Amor and Ramón Doallo
Remote Sens. 2020, 12(4), 719; https://0-doi-org.brum.beds.ac.uk/10.3390/rs12040719 - 21 Feb 2020
Cited by 16 | Viewed by 4116
Abstract
For years, Light Detection and Ranging (LiDAR) technology has been considered as a challenge when it comes to developing efficient software to handle the extremely large volumes of data this surveying method is able to collect. In contexts such as this, big data [...] Read more.
For years, Light Detection and Ranging (LiDAR) technology has been considered as a challenge when it comes to developing efficient software to handle the extremely large volumes of data this surveying method is able to collect. In contexts such as this, big data technologies have been providing powerful solutions for distributed storage and computing. In this work, a big data approach on geospatial processing for massive aerial LiDAR point clouds is presented. By using Cassandra and Spark, our proposal is intended to support the execution of any kind of heavy time-consuming process; nonetheless, as an initial case of study, we have focused on fast ground-only rasters obtention to generate digital terrain models (DTMs) from massive LiDAR datasets. Filtered clouds obtained from the isolated processing of adjacent zones may exhibit errors located on the boundaries of the zones in the form of misclassified points. Usually, this type of error is corrected through manual or semi-automatic procedures. In this work, we also present an automated strategy for correcting errors of this type, improving the quality of the classification process and the DTMs obtained while minimizing user intervention. The autonomous nature of all computing stages, along with the low processing times achieved, opens the possibility of considering the system as a highly scalable service-oriented solution for on-demand DTM generation or any other geospatial process. Said solution would be a highly useful and unique service for many users in the LiDAR field, and one which could get near to real-time processing with appropriate computational resources. Full article
(This article belongs to the Special Issue High Performance Computing of Remotely-Sensed Data)
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