• A Parallel FPGA Implementation of the CCSDS-123 Compression Algorithm 

      Orlandic, Milica; Fjeldtvedt, Johan Austlid; Johansen, Tor Arne (Journal article; Peer reviewed, 2019)
      Satellite onboard processing for hyperspectral imaging applications is characterized by large data sets, limited processing resources and limited bandwidth of communication links. The CCSDS-123 algorithm is a specialized ...
    • A Change-Driven Image Foveation Approach for Tracking Plant Phenology 

      Silva, Ewerton; Torres, Ricardo Da Silva; Bruna, Alberton; Leonor, Morellato; Thiago, Silva (Peer reviewed; Journal article, 2020)
      One of the challenges in remote phenology studies lies in how to efficiently manage large volumes of data obtained as long-term sequences of high-resolution images. A promising approach is known as image foveation, which ...
    • Densely Residual Network with Dual Attention for Hyperspectral Reconstruction from RGB Images 

      Wang, Lixia; Sole, Aditya Suneel; Hardeberg, Jon Yngve (Peer reviewed; Journal article, 2022)
      In the last several years, deep learning has been introduced to recover a hyperspectral image (HSI) from a single RGB image and demonstrated good performance. In particular, attention mechanisms have further strengthened ...
    • Feasibility Study on Hyperspectral LiDAR for Ancient Huizhou-Style Architecture Preservation 

      Shao, Hui; Chen, Yuwei; Yang, Zhirong; Jiang, Changhui; Li, Wei; Wu, Haohao; Wang, Shaowei; Yang, Fan; Chen, Jie; Puttnon, Eetu; Hyyppä, Juha (Journal article; Peer reviewed, 2020)
      Huizhou-style ancient architecture was one of the most important genres of architectural heritage in China. The architecture employed bricks, woods, and stones as raw materials, and timber frames were significant structures. ...
    • Feature Selection Based on Principal Component Regression for Underwater Source Localization by Deep Learning 

      Zhu, Xiaoyu; Dong, Hefeng; Salvo Rossi, Pierluigi; Landrø, Martin (Peer reviewed; Journal article, 2021)
      Underwater source localization is an important task, especially for real-time operation. Recently, machine learning methods have been combined with supervised learning schemes. This opens new possibilities for underwater ...
    • Globally vs. Locally Trained Machine Learning Models for Landslide Detection: A Case Study of a Glacial Landscape 

      Ganerød, Alexandra Jarna; Lindsay, Erin Rose Pilaar; Fredin, Ola; Myrvoll, Tor Andre; Nordal, Steinar; Rød, Jan Ketil (Peer reviewed; Journal article, 2023)
      Landslide risk mitigation is limited by data scarcity; however, this could be improved using continuous landslide detection systems. To investigate which image types and machine learning models are most useful for landslide ...
    • How Many Reindeer? UAV Surveys as an Alternative to Helicopter or Ground Surveys for Estimating Population Abundance in Open Landscapes 

      Paulsen, Ingrid M.; Pedersen, Åshild Ø; Hann, Richard; Blanchet, Marie-Anne; Eischeid, Isabell; van Hazendonk, Charlotte Maartje; Ravolainen, Virve; Stien, Audun; Le Moullec, Mathilde (Peer reviewed; Journal article, 2023)
      Conservation of wildlife depends on precise and unbiased knowledge on the abundance and distribution of species. It is challenging to choose appropriate methods to obtain a sufficiently high detectability and spatial ...
    • HYPSO-1 CubeSat: First Images and In-Orbit Characterization 

      Bakken, Sivert; Henriksen, Marie Bøe; Birkeland, Roger; Langer, Dennis David; Oudijk, Adriënne Esmeralda; Berg, Simen; Pursley, Yeshi; Garrett, Joseph Landon; Gran-Jansen, Fredrik; Honoré-Livermore, Evelyn; Grøtte, Mariusz Eivind Santora; Kristiansen, Bjørn Andreas; Orlandic, Milica; Gader, Paul; Sørensen, Asgeir Johan; Sigernes, Fred; Johnsen, Geir; Johansen, Tor Arne (Peer reviewed; Journal article, 2023)
      The HYPSO-1 satellite, a 6U CubeSat carrying a hyperspectral imager, was launched on 13 January 2022, with the Goal of imaging ocean color in support of marine research. This article describes the development and current ...
    • In-orbit measurements and analysis of radio interference in the UHF amateur radio band from the LUME-1 satellite 

      Quintana Díaz, Gara; Ekman, Torbjörn; Lago Agra, José Miguel; Hurtado de Mendoza, Diego; González Muíño, Alberto; Agelet, Fernando Aguado (Journal article; Peer reviewed, 2021)
    • Machine Learning Approaches to Automatically Detect Glacier Snow Lines on Multi-Spectral Satellite Images 

      Prieur, Colin; Rabatel, Antoine; Thomas, Jean Baptiste; Farup, Ivar; Chanussot, Jocelyn (Peer reviewed; Journal article, 2022)
      Documenting the inter-annual variability and the long-term trend of the glacier snow line altitude is highly relevant to document the evolution of glacier mass changes. Automatically identifying the snow line on glaciers ...
    • Pre-Launch Assembly, Integration, and Testing Strategy of a Hyperspectral Imaging CubeSat, HYPSO-1 

      Prentice, Elizabeth; Honoré-Livermore, Evelyn; Bakken, Sivert; Henriksen, Marie Bøe; Birkeland, Roger; Hjertenæs, Martine Aasen; Gjersvik, Amund; Johansen, Tor Arne; Agelet, Fernando Aguado; Navarro-Medina, Fermin (Peer reviewed; Journal article, 2022)
      Assembly, Integration, and Verification/Testing (AIV or AIT) is a standardized guideline for projects to ensure consistency throughout spacecraft development phases. The goal of establishing such a guideline is to assist ...
    • Robust and Reconfigurable On-Board Processing for a Hyperspectral Imaging Small Satellite 

      Langer, Dennis David; Orlandic, Milica; Bakken, Sivert; Birkeland, Roger; Garrett, Joseph Landon; Johansen, Tor Arne; Sørensen, Asgeir Johan (Peer reviewed; Journal article, 2023)
      Hyperspectral imaging is a powerful remote sensing technology, but its use in space is limited by the large volume of data it produces, which leads to a downlink bottleneck. Therefore, most payloads to date have been ...
    • Shear-Wave Tomography Using Ocean Ambient Noise with Interference 

      Wu, Guoli; Dong, Hefeng; Ke, Ganpan; Song, Junqiang (Peer reviewed; Journal article, 2020)
      Ambient noise carries abundant subsurface structure information and attracts ever-increasing attention in the past decades. However, there are lots of interference factors in the ambient noise in the real world, making the ...
    • SIOS’s Earth Observation (EO), Remote Sensing (RS), and operational activities in response to COVID-19 

      Jawak, Shridhar D.; Andersen, Bo N.; Pohjola, Veijo; Godøy, Øystein; Hübner, Christiane E.; Jennings, Inger; Ignatiuk, Dariusz; Holmen, Kim; Sivertsen, Agnar; Hann, Richard; Tømmervik, Hans; Kääb, Andreas; Błaszczyk, Małgorzata; Salzano, Roberto; Luks, Bartłomiej; Høgda, Kjell Arild; Storvold, Rune; Nilsen, Lennart; Salvatori, Rosamaria; Krishnan, Kottekkatu Padinchati; Chatterjee, Sourav; Lorentzen, Dag Arne; Erlandsson, Rasmus; Lauknes, Tom Rune; Malnes, Eirik; Karlsen, Stein Rune; Enomoto, Hiroyuki; Fjæraa, Ann Mari; Zhang, Jie; Marty, Sabine; Nygård, Knut Ove; Lihavainen, Heikki (Peer reviewed; Journal article, 2021)
      Svalbard Integrated Arctic Earth Observing System (SIOS) is an international partnership of research institutions studying the environment and climate in and around Svalbard. SIOS is developing an efficient observing system, ...
    • A Soft Computing Approach for Selecting and Combining Spectral Bands 

      Albarracin, Juan; Oliveira, Rafael S; Hirota, Marina; Santos, Jefersson; Torres, Ricardo Da Silva (Peer reviewed; Journal article, 2020)
      We introduce a soft computing approach for automatically selecting and combining indices from remote sensing multispectral images that can be used for classification tasks. The proposed approach is based on a Genetic-Programming ...
    • Tracking a low-angle isolated target via an elevation-angle estimation algorithm based on extended kalman filter with an array antenna 

      Darvishi, Hossein; Sebt, Mohammad Ali; Ciuonzo, Domenico; Salvo Rossi, Pierluigi (Journal article; Peer reviewed, 2021)