Browsing by Author "Olson, Derek R."
Now showing items 1-4 of 4
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Measurements of high-frequency acoustic scattering from glacially eroded rock outcrops
Olson, Derek R.; Lyons, Anthony P.; Sæbø, Torstein Olsmo (2016)Measurements of acoustic backscattering from glacially eroded rock outcrops were made off the coast of Sandefjord, Norway using a high-frequency synthetic aperture sonar (SAS) system. A method by which scattering strength ... -
Modeling the effect of random roughness on synthetic aperture sonar image statistics
Lyons, Anthony P.; Olson, Derek R.; Hansen, Roy Edgar (2022-09-02)A model has been developed to predict the effect of random seafloor roughness on synthetic aperture sonar (SAS) image statistics, based on the composite roughness approximation–a physical scattering model. The continuous ... -
A Study on the Effect of Commonly Used Data Augmentation Techniques on Sonar Image Artifact Detection Using Deep Neural Networks
Orescanin, Marco; Harrington, Brian; Olson, Derek R.; Geilhufe, Marc; Hansen, Roy Edgar; Warakagoda, Narada Dilp (2023-10-20)This paper presents an empirical study that evaluates the impact of different types of augmentations on the performance of Deep Learning (DL) models for detecting imaging artifacts in Synthetic Aperture Sonar (SAS) imagery. ... -
A wavelet schrinkage approach to detect candidate point scatterers in synthetic aperture sonar images for resolution estimation
Geilhufe, Marc; Olson, Derek R.; Hansen, Roy Edgar; Synnes, Stig Asle Vaksvik (2023)Autonomous Underwater Vehicles (AUVs) that are equipped with side-looking synthetic aperture sonar (SAS) have become a popular asset for efficient high resolution imaging and mapping of the seafloor. There are situations ...