Browsing by Author "Dugelay, Samantha"
Now showing items 1-5 of 5
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Active contours for synthetic aperture sonar snippet registration
Dugelay, Samantha; Fox, Warren L. J. (CMRE, 2019/06)In mine-hunting operations, there is currently a strong focus on using autonomous systems in order to remove personnel and ships from the minefield. These systems must perform their missions effectively, and the collected ... -
Micro-bathymetry data acquisition for 3D reconstruction of objects on the sea floor
Machado, Diogo; Furfaro, Thomas C.; Dugelay, Samantha (CMRE, 2019/06)This paper describes an effort to capture micro-bathymetry data for the end purpose of 3D object reconstruction, using an AUV-borne multibeam echo sounder. Due to the combination of relatively narrow across-track coverage ... -
Multi-view SAS image classification using deep learning
Williams, David P.; Dugelay, Samantha (CMRE, 2017/11)A new approach is proposed for multi-view classification when sonar data is in the form of imagery and each object has been viewed an arbitrary number of times. An image-fusion technique is employed in conjunction with a ... -
Shallow-water seafloor characterization for high-frequency multibeam echosounder: image segmentation using angular backscatter
Lurton, Xavier; Augustin, Jean-Marie; Dugelay, Samantha; Hellequin, Laurent; Voisset, Michel (NATO. SACLANTCEN, 1997)Sonar images from multibeam echosounders are submitted to various degradations, partly due to the sensor itself: Signal artefacts and corresponding corrections are presented, both for signal processing and for array ... -
Underwater optical and acoustic imaging: a time for fusion? a brief overview of the state-of-the-art
Ferreira, Fausto; Machado, Diogo; Ferri, Gabriele; Dugelay, Samantha; Potter, John Robert (CMRE, 2019/06)Underwater optical imaging has several drawbacks inherent to the physical medium such as light attenuation and turbidity. Sonars try to obviate those issues although, typically, they have lower resolutions. Combining visual ...