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Forsker Matematihka ja statistihka instituhtta samuel.sarmiento@uit.no Tromsø

Samuel Ortega Sarmiento



  • 1
    Vasili Alexander Balios, Samuel Ortega, Karsten Heia, Anna Avetisyan, Kirsten Krause :
    Assisting species differentiation and taxonomic classification by hyperspectral imaging: an example from the parasitic plant realm
    Plant Methods 2026 DOI / ARKIV
  • 1
    Rowan Peter Romeyn, Sohini Basu Roy, Samuel Ortega Sarmiento, Karsten Heia :
    Hyperspectral Imaging of Blood Through Fish Skin Using a Neural Network Machine Learning Approach
    Journal of Spectroscopy 2025 DOI / ARKIV
  • 1
    Christopher Noble, Wout Abbink, René Alvestad, László Ardó, Marie‐Laure Bégout, Nina Bloecher et al.:
    Welfare Indicators for Aquaculture Research: Toolboxes for Five Farmed European Fish Species
    Reviews in Aquaculture 18. Nov 2025 DOI / ARKIV
  • 1
    Maria Castro-Fernandez, Thomas Roger Griesbeck Schopf, Irene Castaño-Gonzalez, Belinda Roque-Quintana, Herbert Kirchesch, Samuel Ortega Sarmiento et al.:
    MCR-SL: A Multimodal, Context-Rich Skin Lesion Dataset for Skin Cancer Diagnosis
    Data 18. Oct 2025 DOI / ARKIV
  • 1
    Samuel Ortega, Esmail Lutfi Royo, Siri Storteig Horn, Evan Durland :
    Quantification of fat content in the liver of different aquaculture fish species using hyperspectral image analysis
    Aquaculture 2025 DOI / ARKIV
  • 1
    Iver Martinsen, Steffen Aagaard Sørensen, Samuel Ortega Sarmiento, Fred Godtliebsen, Miguel Angel Tejedor Hernandez, Eirik Myrvoll-Nilsen :
    Quantifying uncertainty in foraminifera classification: How deep learning methods compare to human experts
    Artificial Intelligence in Geosciences 2025 DOI / ARKIV
  • 1
    Samuel Ortega, Tatiana Nikolaevna Ageeva, Silje Kristoffersen, Karsten Heia, Heidi Nilsen :
    High throughput shelf life determination of Atlantic cod (Gadus morhua L.) by use of hyperspectral imaging
    IEEE transactions on multimedia 2025 DOI / ARKIV
  • 1
    Laura Quintana-Quintana, Gonzalo Rosa, Javier Santana-Nunez, Miguel Chavarrías, Samuel Ortega Sarmiento, Jaime Sancho et al.:
    Roadmap for the Characterization and Validation of Hyperspectral Microscopic Systems
    IEEE Transactions on Instrumentation and Measurement 2025 DOI / ARKIV
  • 1
    Natacha L. Severin, Samuel Ortega, Rowan Peter Romeyn, Stein Harris Olsen, Karsten Heia, Charlotte Jacobsen et al.:
    An interdisciplinary approach to detect and grade ‘Mushy Halibut Syndrome’ in fillets of Greenland halibut (Reinhardtius hippoglossoides)
    Journal of Food Measurement and Characterization 2025 DOI / ARKIV
  • 1
    Daniel Ulises Campos-Delgado, Juan Nicolás Mendoza-Chavarría, Omar Gutierrez-Navarro, Laura Quintana-Quintana, Raquel Leon, Samuel Ortega et al.:
    Robust and Unified Semi-Supervised Unmixing of Hyperspectral Imaging for Linear and Multilinear Models
    IEEE Access 2025 DOI / ARKIV
  • 1
    Rowan Peter Romeyn, Samuel Ortega Sarmiento, Karsten Heia :
    Hyperspectral detection of blood and melanin defects in salmon fillets
    Aquaculture 2025 DOI / ARKIV
  • 1
    Alberto Martín-Pérez, Beatriz Martinez-Vega, Manuel Villa, Raquel Leon, Alejandro Martinez de Ternero, Himar Fabelo et al.:
    Unifying heterogeneous hyperspectral databases for in vivo human brain cancer classification: Towards robust algorithm development
    Computer Methods and Programs in Biomedicine Update 2025 DOI / ARKIV / ARKIV
  • 1
    Jose M. Cabrera-Peña, Raquel Leon, Samuel Ortega, Himar Fabelo, Eduardo Quevedo, Gustavo M. Callico :
    Regulated Power Supply with High Power Factor for Hyperspectral Imaging Applications
    Applied Sciences 2025 DOI / ARKIV / ARKIV
  • 1
    Juan N. Mendoza-Chavarría, Inés A. Cruz-Guerrero, Omar Gutierrez-Navarro, Raquel Leon, Samuel Ortega, Himar Fabelo et al.:
    Blind non-linear spectral unmixing with spatial coherence for hyper and multispectral images
    Journal of the Franklin Institute 2024 DOI / ARKIV
  • 1
    Thomas Juhasz-Dora, Stein-Kato Lindberg, Amanda Katrine Karlsen, Samuel Ortega :
    Biofluorescent response in lumpfish Cyclopterus lumpus to a therapeutic stressor as assessed by hyperspectral imaging
    Scientific Reports 2024 DOI / ARKIV
  • 1
    Daniel Enériz, Antonio J. Rodriguez-Almeida, Himar Fabelo, Samuel Ortega, Francisco J. Balea-Fernandez, Gustavo M. Callico et al.:
    Low-Cost FPGA Implementation of Deep Learning-Based Heart Sound Segmentation for Real-Time CVDs Screening
    IEEE Transactions on Instrumentation and Measurement 2024 DOI / ARKIV
  • 1
    Shaheen Syed, Samuel Ortega, Kathryn Elizabeth Anderssen, Heidi Nilsen, Karsten Heia :
    Hyperspectral imaging and deep learning for parasite detection in white fish under industrial conditions
    Scientific Reports 2024 DOI / ARKIV / ARKIV
  • 1
    Thomas Juhasz-Dora, Stein-Kato Lindberg, Philip James, Tor Hatten Evensen, Samuel Ortega :
    Environmental challenge trials induce a biofluorescent response in the green sea urchin Strongylocentrotus droebachiensis
    Scientific Reports 2024 DOI / ARKIV
  • 1
    Samuel Ortega, Laura Quintana-Quintana, Raquel Leon, Himar Fabelo, María de la Luz Plaza, Rafael Conde Camacho et al.:
    Histological Hyperspectral Glioblastoma Dataset (HistologyHSI-GB)
    Scientific Data 2024 DOI / ARKIV / ARKIV
  • 1
    Raquel Leon, Himar Fabelo, Samuel Ortega, Ines A. Cruz-Guerrero, Daniel Ulises Campos-Delgado, Adam Szolna et al.:
    Hyperspectral imaging benchmark based on machine learning for intraoperative brain tumour detection
    NPJ precision oncology 2023 DOI / ARKIV
  • 1
    Samuel Ortega, Ragni Ofstad, Shaheen Syed, Mathias Kranz, Karsten Heia, Kathryn Elizabeth Anderssen :
    Characterization of vasskveite (water halibut) syndrome for automated detection
    Applied Food Research 2023 DOI / ARKIV / ARKIV
  • 1
    Carlos Urbina Ortega, Eduardo Quevedo Gutiérrez, Laura Quintana, Samuel Ortega, Himar Fabelo, Lucana Santos Falcón et al.:
    Towards Real-Time Hyperspectral Multi-Image Super-Resolution Reconstruction Applied to Histological Samples
    Sensors 2023 DOI / ARKIV
  • 1
    Samuel Ortega, Stein-Kato Lindberg, Kathryn Elizabeth Anderssen, Karsten Heia :
    Perspective Chapter: Hyperspectral Imaging for the Analysis of Seafood
    2023 DOI / ARKIV
  • 1
    Samuel Ortega, Stein-Kato Lindberg, Stein Harris Olsen, Kathryn Elizabeth Anderssen, Karsten Heia :
    Early identification of mushy Halibut syndrome with hyperspectral image analysis
    Lebensmittel-Wissenschaft + Technologie 2023 DOI / ARKIV / ARKIV
  • 1
    Laura Quintana, Samuel Ortega, Himar Fabelo, Francisco J. Balea-Fernández, Gustavo M. Callico :
    Blur-specific image quality assessment of microscopic hyperspectral images
    Optics Express 2023 DOI / ARKIV
  • 1
    Marco La Salvia, Emanuele Torti, Raquel Leon, Himar Fabelo, Samuel Ortega, Beatriz Martinez-Vega et al.:
    Deep Convolutional Generative Adversarial Networks to Enhance Artificial Intelligence in Healthcare: A Skin Cancer Application
    Sensors 2022 DOI / ARKIV
  • 1
    Alejandro Morales, Pablo Horstrand, Raúl Guerra, Raquel Leon, Samuel Ortega, María Díaz et al.:
    Laboratory Hyperspectral Image Acquisition System Setup and Validation
    Sensors 2022 DOI / ARKIV
  • 1
    Daniel Ulises Campos-Delgado, Inés A. Cruz-Guerrero, Juan N Mendoza-Chavarría, Aldo R. Mejía-Rodríguez, Samuel Ortega, Himar Fabelo et al.:
    Nonlinear extended blind end-member and abundance extraction for hyperspectral images
    Signal Processing 2022 DOI / ARKIV
  • 1
    Beatriz Martinez-Vega, Mariia Tkachenko, Marianne Matkabi, Samuel Ortega, Himar Fabelo, Francisco Balea-Fernandez et al.:
    Evaluation of Preprocessing Methods on Independent Medical Hyperspectral Databases to Improve Analysis
    Sensors 2022 DOI / ARKIV
  • 1
    Marco La Salvia, Emanuele Torti, Raquel Leon, Himar Fabelo, Samuel Ortega, Francisco Balea-Fernandez et al.:
    Neural Networks-Based On-Site Dermatologic Diagnosis through Hyperspectral Epidermal Images
    Sensors 2022 DOI / ARKIV
  • 1
    Antonio J. Rodriguez-Almeida, Himar Fabelo, Samuel Ortega, Alejandro Deniz, Balea-Fernandez Francisco, Eduardo Quevedo et al.:
    Synthetic Patient Data Generation and Evaluation in Disease Prediction Using Small and Imbalanced Datasets
    IEEE Journal of Biomedical and Health Informatics 2022 DOI / ARKIV
  • 1
    Raquel Leon, Himar Fabelo, Samuel Ortega, Juan F. Piñeiro, Adam Szolna, Maria Hernandez et al.:
    VNIR–NIR hyperspectral imaging fusion targeting intraoperative brain cancer detection
    Scientific Reports 2021 DOI / ARKIV
  • 1
    Raquel Leon, Abian Hernandez, Himar Fabelo, Samuel Ortega, Balea-Fernandez Francisco, Gustavo Callicó :
    SWIR Hyperspectral Imaging to Assess Neurocognitive Disorders Using Blood Plasma Samples
    2021 DOI / ARKIV
  • Luke Simmons, Steffen Aagaard Sørensen, Samuel Ortega, Tine Lander Rasmussen, Fred Godtliebsen :
    Transferability of Image Evaluation Software for AI Uncertainty Estimation into a Teaching and Learning Tool
    2025 ARKIV
  • Rowan Peter Romeyn, Samuel Ortega, Tatiana Nikolaevna Ageeva, Kathryn Elizabeth Anderssen, Heidi Nilsen, Karsten Heia :
    Measuring salmon texture – developing methodology based on spectroscopy
    Nofima 26. Sep 2025 ARKIV
  • Samuel Ortega :
    Vil bruke fiskehelseteknologi til å diagnotisere hjernesvulst
    07. Jan 2025 ARKIV
  • Samuel Ortega :
    Bedre håp for hjernesvulstpasienter:Kunstig intelligens kan gi tidlig diagnose
    07. Jan 2025 ARKIV
  • Amanda Isaksen, Siri Storteig Horn, Evan Durland, Samuel Ortega :
    Ny metode for måling av leververdier hos oppdrettsfisk
    28. Mar 2025 ARKIV
  • Samuel Ortega, Evan Durland :
    Usynlig lys som velferdsindikator
    Næringsnytte 2024 ARKIV
  • Iver Martinsen, Fred Godtliebsen, Steffen Aagaard Sørensen, Eirik Myrvoll-Nilsen, Samuel Ortega Sarmiento, Miguel Angel Tejedor Hernandez :
    Are humans an AI uncertain about the same things?
    2024 ARKIV
  • Samuel Ortega Sarmiento, Laura Quintana-Quintana, Raquel Leon, Himar Fabelo, María de la Luz Plaza, Rafael Camacho et al.:
    Correction to: Histological Hyperspectral Glioblastoma Dataset (HistologyHSI-GB) (Scientific Data, (2024), 11, 1, (681), 10.1038/s41597-024-03510-x)
    Scientific Data 2024 DOI / ARKIV
  • Samuel Ortega, Thomas Juhasz-Dora, Evan Durland, Reidun Lilleholt Kraugerud :
    Både rognkjeks og kongekrabbe gløder når de opplever akutt stress
    26. Nov 2024 ARKIV
  • Heidi Nilsen, Samuel Ortega, Thomas Nyrud, Amanda Katrine Karlsen, Stein-Kato Lindberg, Karsten Heia et al.:
    Teknologi for automatisk sortering av tørrfisk
    Nofima 2024 ARKIV / ARKIV
  • Raquel Leon, Sofia H. Gelado, Himar Fabelo, Samuel Ortega, Laura Quintana, Adam Szolna et al.:
    Hyperspectral imaging for in-vivo/ex-vivo tissue analysis of human brain cancer
    2022 ARKIV
  • Tatiana Nikolaevna Ageeva, Stein Harris Olsen, Gustav Martinsen, Samuel Ortega, Kristin Beate Hansen :
    New Practicing in old techniques: Effect of different soaking times of gillnet on fish and fish products quality
    2022 ARKIV
  • Samuel Ortega, Stein-Kato Lindberg, Tatiana Nikolaevna Ageeva, Karsten Heia :
    Estmation of shelf-lifeof Atlantic cod using hyperspectral imaging and machine learning
    2022 ARKIV
  • Samuel Ortega, Stein-Kato Lindberg, Tatiana Nikolaevna Ageeva, Karsten Heia :
    Estimation of shelf-life of Atlantic cod using hyperspectral imaging and machine learning
    2022 ARKIV
  • Karsten Heia, Samuel Ortega :
    Oppdager kveis med ny teknologi
    Næringsnytte 2022 ARKIV
  • Laura Quintana, Samuel Ortega, Raquel Leon, Himar Fabelo, Balea-Fernandez Francisco, Esther Sauras et al.:
    In the use of artificial intelligence and hyperspectral imaging in digital pathology for breast cancer cell identification
    2022 ARKIV
  • Samuel Ortega :
    Kvalitetsvurdering med hyperspektralt lys.
    17. Feb 2022 ARKIV

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