Results 151 to 160 of about 19,957 (208)

Advanced deep learning framework for underwater object detection with multibeam forward-looking sonar. [PDF]

Struct Health Monit
Ge L, Singh P, Sadhu A.
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Revisiting face-to-hand area remapping in the human primary somatosensory cortex after a cervical spinal cord injury

Howell P, Rabe F, Meneghin C, Schading-Sassenhausen S, Sonar HA, Paik J, Freund P, Wenderoth N, Kikkert S.   +8 more
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The geological interpretation of side‐scan sonar

Reviews of Geophysics, 1990
Recent developments in side‐scan sonar technology have increased the potential for fundamental changes in our understanding of ocean basins. Developed in the late 1960s, “side looking” sonars have been widely used for the last two decades to obtain qualitative estimates of the acoustic properties of the materials of the seafloor. Modern developments in
H. Paul Johnson, Maryann Helferty
openaire   +3 more sources

Bistatic side scan sonar

The Journal of the Acoustical Society of America, 1992
This discloses an improved side-scan sonar capable of locating objects on e ocean floor including the strip directly beneath the sonar transmitter and receiver, which in prior arrangements had to be obtained by another pass. The arrangement includes a platform having acoustic transmitters spaced apart a substantial distance on either side of acoustic ...
Bruce S. Maccabee, Charles E. Bell
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Side scan sonar acoustic variability

OCEANS '88. 'A Partnership of Marine Interests'. Proceedings, 2003
The authors report the results of research on the inherent variability of side-scan sonar imagery to determine the magnitude and nature of image intensity fluctuations. Two experiments are presented in which a Klein 100-kHz system is operated under controlled conditions that remove all but purely instrumental and acoustic causes of image variability ...
J.W. Nicholson, J.S. Jaffe
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Side-scan sonar image matching

IEEE Journal of Oceanic Engineering, 1998
This paper presents a method for the matching of underwater images acquired with acoustic sensors. As a final objective, the system aims at matching data from two-dimensional scenes. The proposed approach carries out a hypothetical reasoning based on objects, represented by shadows and echoes in the sonar images, and their available features.
S. Daniel, F. Le Leannec, C. Roux, B. Soliman, E.P. Maillard   +4 more
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Nearshore Side-Scan Sonar Studies

Journal of Atmospheric and Oceanic Technology, 1993
Abstract Side-scan sonars operating at 80–250 kHz have been deployed to produce narrow beams directed parallel and normal to shore on a gently sloping beach. These provide measurements of processes (such as wave propagation) seaward of the edge of the surf zone.
S. A. Thorpe, A. J. Hall
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Side-Scan Sonar: Selective Textural Enhancement

OCEANS '76, 1976
A variety of signal processing techniques are available which can assist the interpretation of side-scan sonar. In exploring the range of possibilities for processing with these techniques we have developed selective tuning of textural enhancement for different textural wavelengths. In practice we have found it desirable to be free to decide on tuning,
D. Krotser, M. Klein
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A new generation side scan sonar

OCEANS '88. 'A Partnership of Marine Interests'. Proceedings, 2003
Side-scan sonar traditionally has used a graphic paper recording system for the display and annotation of the data. A novel side-scan system specifically designed to use color video as the primary data display is described. Several design considerations and tradeoffs are discussed, some of which are unique to a system using a video display.
R.G. Asplin, C.G. Christensson
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