2024
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1. |
Gereb, Gabor; Austeng, Andreas; Hansen, Roy Edgar; Birkenes Lønmo, Tor Inge. Resolution of adaptive beamformers. Scandinavian Symposium of Physical Acoustics; 2024-01-28 - 2024-01-31 UiO FFI
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2023
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2. |
Orescanin, Marco; Harrington, Brian; Olson, Derek R.; Geilhufe, Marc; Hansen, Roy Edgar; Warakagoda, Narada Dilp. Uncertainty quantification with deep learning through variational inference with applications to synthetic aperture sonar. Underwater Acoustics Conference & Exhibition (UACE) 2023 s. - FFI
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3. |
Orescanin, Marco; Harrington, Brian; Olson, Derek R.; Geilhufe, Marc; Hansen, Roy Edgar; Warakagoda, Narada Dilp. Uncertainty quantification with deep learning through variational inference with applications to synthetic aperture sonar. Underwater Acoustics Conference & Exhibition (UACE); 2023-06-25 - 2023-06-30 FFI
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4. |
Geilhufe, Marc; Olson, Derek R.; Hansen, Roy Edgar; Synnes, Stig Asle Vaksvik. A wavelet shrinkage approach to detect candidate point scatterers in synthetic aperture sonar images for resolution estimation. Synthetic Aperture Sonar and Synthetic Aperture Radar (SAS/SAR); 2023-09-06 - 2023-09-08 FFI
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Geilhufe, Marc; Olson, Derek R.; Hansen, Roy Edgar; Synnes, Stig Asle Vaksvik. A wavelet shrinkage approach to detect candidate point scatterers in synthetic aperture sonar images for resolution estimation. I: Synthetic Aperture Sonar and Synthetic Aperture Radar 2023. UK: Institute of Acoustics 2023 ISBN 978-1-906913-44-1. s. - FFI
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6. |
Gereb, Gabor; Austeng, Andreas; Hansen, Roy Edgar; Birkenes Lønmo, Tor Inge. Performance analysis of adaptive beamformers in surveying pipelines by multi-beam echo sounders. Underwater Acoustics Conference and Exhibition (UACE2023); 2023-06-25 - 2023-06-30 FFI UiO
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7. |
Hansen, Roy Edgar. Challenges in synthetic aperture sonar imaging of shipwrecks for change detection. Underwater Acoustics Conference & Exhibition (UACE) 2023 FFI
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8. |
Hansen, Roy Edgar. Challenges in synthetic aperture sonar imaging of shipwrecks for change detection. Underwater Acoustic Conference and Exibition; 2023-06-25 - 2023-06-30 FFI
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9. |
Hansen, Roy Edgar. MIMO synthetic aperture sonar: Benefits and limitations. Electronics Letters 2023 ;Volum 59.(2) s. - FFI UiO
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10. |
Orescanin, Marco; Harrington, Brian; Olson, Derek R.; Geilhufe, Marc; Hansen, Roy Edgar; Warakagoda, Narada Dilp. A Study on the Effect of Commonly Used Data Augmentation Techniques on Sonar Image Artifact Detection Using Deep Neural Networks. IEEE International Geoscience and Remote Sensing Symposium proceedings 2023 s. 360-363 FFI
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11. |
Orescanin, Marko; Harrington, Brian; Olson, Derek R.; Geilhufe, Marc; Hansen, Roy Edgar; Warakagoda, Narada Dilp. A Study on the Effect of Commonly Used Data Augmentation Techniques on Sonar Image Artifact Detection Using Deep Neural Networks. IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium; 2023-07-16 - 2023-07-21 FFI
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12. |
Sæbø, Torstein Olsmo; Hansen, Roy Edgar. Adaptive phase estimation filter in long range synthetic aperture sonar interferometry. Electronics Letters 2023 ;Volum 59.(10) FFI UiO
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13. |
Sæbø, Torstein Olsmo; Hansen, Roy Edgar; Lorentzen, Ole J.. Long-range interferometric synthetic aperture sonar. Synthetic Aperture Sonar and Synthetic Aperture Radar (SAS/SAR); 2023-09-06 - 2023-09-08 FFI
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14. |
Sæbø, Torstein Olsmo; Hansen, Roy Edgar; Lorentzen, Ole J.. Long-range interferometric synthetic aperture sonar. I: Synthetic Aperture Sonar and Synthetic Aperture Radar 2023. UK: Institute of Acoustics 2023 ISBN 978-1-906913-44-1. FFI
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15. |
Thon, Stine Hverven; Austeng, Andreas; Hansen, Roy Edgar. Point detection in textured ultrasound images. Ultrasonics 2023 ;Volum 131. s. 1-10 FFI UiO
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16. |
Zhang, Xuebo; Heald, Gary; Lyons, Anthony P.; Hansen, Roy Edgar; Hunter, Alan J.. Guest editorial: recent advances in synthetic aperture sonar technology. Electronics Letters 2023 ;Volum 59.(14) s. - UiO
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2022
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17. |
Gereb, Gabor; Hansen, Roy Edgar; Lønmo, Tor Inge Birkenes; Austeng, Andreas. PhD project: Adaptive beamforming in underwater detection and estimation problems. Scandinavian Symposium of Physical Acoustics; 2022-01-31 - 2022-02-01 UiO FFI
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18. |
Gereb, Gabor; Hansen, Roy Edgar; Lønmo, Tor Inge Birkenes; Näsholm, Sven Peter; Austeng, Andreas. Underwater pipeline detection and localisation using multibeam echo sounder in a resolution limited case. International Conference of Underwater Acoustics; 2022-06-20 - 2022-06-23 FFI UiO NORSAR
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19. |
Austeng, Andreas; Näsholm, Sven Peter; Hansen, Roy Edgar; Rindal, Ole Marius Hoel. Spatial Aperture Coherence with Synthetic Transmit Focusing in SAS. International Conference of Underwater Acoustics; 2022-06-20 - 2022-06-23 FFI UiO
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20. |
Bryan, Oscar; Hansen, Roy Edgar; Haines, Tom S. F.; Warakagoda, Narada Dilp; Hunter, Alan Joseph. Challenges of Labelling Unknown Seabed Munition Dumpsites from Acoustic and Optical Surveys: A Case Study at Skagerrak. Remote Sensing 2022 ;Volum 14.(11) s. - FFI UiO
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21. |
Crawford, Anna M; Hansen, Roy Edgar; Johnson, Sean; King, Jonathan L.; Midtgaard, Øivind; Sæbø, Torstein Olsmo; Salas, Jose Antonio; Shouldice, Emma; Smith, Sonja. Improvements to change detection tools for SAS images. OEANS 2022 Hampton Roads; 2022-10-17 - 2022-10-20 FFI UiO
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22. |
Crawford, Anna M; Hansen, Roy Edgar; Johnson, Sean; King, Jonathan L.; Midtgaard, Øivind; Sæbø, Torstein Olsmo; Salas, Jose Antonio; Shouldice, Emma; Smith, Sonja. Improvements to change detection tools for SAS images. I: OCEANS 2022 Hampton Roads. Hampton Roads: IEEE 2022 ISBN 978-1-6654-6809-1. FFI UiO
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23. |
Gereb, Gabor; Hansen, Roy Edgar; Austeng, Andreas; Lønmo, Tor Inge Birkenes; Näsholm, Sven Peter; Rindal, Ole Marius Hoel. Ultrasound Beamformer Benchmarking Pipeline. CIUS Fall Conference 2022; 2022-11-09 - 2022-11-10 NORSAR UiO FFI
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24. |
Gereb, Gabor; Hansen, Roy Edgar; Lønmo, Tor Inge Birkenes; Näsholm, Sven Peter; Austeng, Andreas; Rindal, Ole Marius Hoel. Improving Sonar Surveying of Subsea Cables and Pipelines with Adaptive Beamforming. International Ultrasonics Symposium; 2022-10-10 - 2022-10-13 UiO FFI NORSAR
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25. |
Hansen, Roy Edgar. Benefits and Limitations in MIMO Synthetic Aperture Sonar. International Conference on Underwater Acoustics; 2022-06-20 - 2022-06-23 FFI
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26. |
Hansen, Roy Edgar; Geilhufe, Marc; Synnes, Stig Asle Vaksvik; Sæbø, Torstein Olsmo; Thon, Stine Hverven. Detection of Coherent Scatterers in Synthetic Aperture Sonar Using Multilook Coherence. EUSAR 2022; 2022-07-25 - 2022-07-27 FFI
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27. |
Hansen, Roy Edgar; Geilhufe, Marc; Synnes, Stig Asle Vaksvik; Sæbø, Torstein Olsmo; Thon, Stine Hverven. Detection of Coherent Scatterers in Synthetic Aperture Sonar Using Multilook Coherence. I: EUSAR 2022. VDE Verlag GmbH 2022 ISBN 978-3-8007-5823-4. s. - FFI UiO
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28. |
Lorentzen, Ole J.; Hansen, Roy Edgar; Sæbø, Torstein Olsmo; Hunter, Alan Joseph; Synnes, Stig Asle Vaksvik; Geilhufe, Marc. Hypothesis testing of 3D object shapes for synthetic aperture sonar interferometry. International Conference on Underwater Acoustics; 2022-06-20 - 2022-06-23 FFI UiO
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29. |
Lyons, Anthony P.; Olson, Derek R.; Hansen, Roy Edgar. Modeling the effect of random roughness on synthetic aperture sonar image statistics. Journal of the Acoustical Society of America 2022 ;Volum 152.(3) s. 1363-1374 FFI
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30. |
Lønmo, Tor Inge Birkenes; Austeng, Andreas; Hansen, Roy Edgar. Adaptive Beamforming and Autocalibration for Swath Sonars. International Conference of Underwater Acoustics; 2022-06-19 - 2022-06-23 UiO FFI
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31. |
Lønmo, Tor Inge Birkenes; Austeng, Andreas; Hansen, Roy Edgar. Adaptive Beamforming and Autocalibration for Swath Sonars. Scandinavian Symposium of Physical Acoustics; 2022-01-31 - 2022-02-01 UiO FFI
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32. |
Rindal, Ole Marius Hoel; Näsholm, Sven Peter; Hansen, Roy Edgar; Austeng, Andreas. Compensating Dynamic Range Alterations from Adaptive Beamforming using Histogram Matching. International Conference of Underwater Acoustics; 2022-06-20 - 2022-06-23 FFI UiO
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33. |
Rindal, Ole Marius Hoel; Näsholm, Sven Peter; Hansen, Roy Edgar; Austeng, Andreas. Image Enhancement Using Capon Minimum Variance Adaptive Beamforming in Synthetic Aperture Sonar. International Conference of Underwater Acoustics; 2022-06-20 - 2022-06-23 FFI UiO
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34. |
Synnes, Stig Asle Vaksvik; Geilhufe, Marc; Hansen, Roy Edgar; Sæbø, Torstein Olsmo; Lorentzen, Ole J.. Investigation of layover in interferometry. International Conference on Underwater Acoustics; 2022-06-20 - 2022-06-23 FFI UiO
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35. |
Sæbø, Torstein Olsmo; Hansen, Roy Edgar; Lyons, Anthony P.. Synthetic aperture sonar multi-aspect differential interferometry for detection of internal waves. EUSAR 2022; 2022-07-25 - 2022-07-27 FFI UiO
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36. |
Sæbø, Torstein Olsmo; Hansen, Roy Edgar; Lyons, Anthony P.. Synthetic aperture sonar multi-aspect differential interferometry for detection of internal waves. I: EUSAR 2022. VDE Verlag GmbH 2022 ISBN 978-3-8007-5823-4. s. 277-282 FFI UiO
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37. |
Sæbø, Torstein Olsmo; Hansen, Roy Edgar; Synnes, Stig Asle Vaksvik. Phase ambiguities in Synthetic Aperture Sonar Interferometry. OCEANS 2022 Hampton Roads; 2022-10-17 - 2022-10-20 FFI
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38. |
Sæbø, Torstein Olsmo; Hansen, Roy Edgar; Synnes, Stig Asle Vaksvik. Phase ambiguities in Synthetic Aperture Sonar Interferometry. I: OCEANS 2022 Hampton Roads. Hampton Roads: IEEE 2022 ISBN 978-1-6654-6809-1. FFI
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39. |
Thon, Stine Hverven; Hansen, Roy Edgar; Austeng, Andreas. Point Detection in Ultrasound Using Prewhitening and Multilook Optimization. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 2022 ;Volum 69.(6) s. 2085-2097 UiO FFI
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2021
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40. |
Blachet, Antoine; Austeng, Andreas; Aparicio, Joaquin; Hunter, Alan Joseph; Hansen, Roy Edgar. Multibeam Echosounder With Orthogonal Waveforms: Feasibility and Potential Benefits. IEEE Journal of Oceanic Engineering 2021 s. - UiO FFI
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41. |
La Manna, Nicolas; Lyons, Anthony P.; Hansen, Roy Edgar. The effect of internal waves on synthetic aperture sonar resolution. Underwater Acoustic Conference and Exibition; 2021-06-20 FFI
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42. |
Lorentzen, Ole J.; Hansen, Roy Edgar; Sæbø, Torstein Olsmo; Synnes, Stig Asle Vaksvik; Geilhufe, Marc. 3D rendering of shipwrecks from synthetic aperture sonar. Underwater Acoustic Conference and Exibition; 2021-06-20 FFI UiO
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43. |
Lorentzen, Ole Jacob; Hansen, Roy Edgar; Sæbø, Torstein Olsmo; Synnes, Stig Asle Vaksvik; Geilhufe, Marc. 3D Rendering of Shipwrecks from Synthetic Aperture Sonar. Proceedings of Meetings on Acoustics (POMA) 2021 UiO FFI
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44. |
Synnes, Stig Asle Vaksvik; Hansen, Roy Edgar; Sæbø, Torstein Olsmo. Spatial coherence of speckle for repeat-pass synthetic aperture sonar micronavigation. IEEE Journal of Oceanic Engineering 2021 ;Volum 46.(4) s. 1330-1345 FFI UiO
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45. |
Thon, Stine Hverven; Hansen, Roy Edgar; Austeng, Andreas. Detection of Point Scatterers in Medical Ultrasound. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 2021 UiO FFI
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2020
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46. |
Lorentzen, Ole Jacob; Sæbø, Torstein Olsmo; Hansen, Roy Edgar. Backscatter Features for Estimating Synthetic Aperture Sonar Bathymetry. OCEANS 2020 UiO FFI
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47. |
Lorentzen, Ole Jacob; Sæbø, Torstein Olsmo; Hansen, Roy Edgar. Backscatter Features for Estimating Synthetic Aperture Sonar Bathymetry. IEEE Global Oceans 2020; 2020-10-05 - 2020-10-30 FFI UiO
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48. |
Lønmo, Tor Inge Birkenes; Austeng, Andreas; Hansen, Roy Edgar. Data-Driven Autocalibration for Swath Sonars. IEEE Journal of Oceanic Engineering 2020 s. - FFI UiO
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49. |
Lønmo, Tor Inge Birkenes. Adaptive Beamforming and Autocalibration for Swath Sonars. Universitetet i Oslo 2020 178 s. Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo.(2243) UiO
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50. |
Otnes, Roald Wilhelm; Hansen, Roy Edgar. Estimating the spatial coherence of narrowband underwater acoustic signals. International Conference on Underwater Acoustics; 2020-11-09 - 2020-11-09 FFI UiO
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