Results 81 to 90 of about 19,957 (208)
Detection of Mines in Acoustic Images using Higher Order Spectral Features [PDF]
, 2002 A new pattern-recognition algorithm detects approximately 90% of the mines hidden in the Coastal Systems Station Sonar0, 1, and 3 databases of cluttered acoustic images, with about 10% false alarms.
Chandran, Vinod +2 more
core +3 more sources
Ecology and Evolution, Volume 16, Issue 2, February 2026.This study provides an overview of the distribution of the three ecosystem types formed by Cladocora caespitosa and describes newly discovered ones at Tremiti Islands (Adriatic Sea, Italy). The spatial distribution, biometry, size structure, and conservation status of the Cladocora formations have been investigated and compared at the Mediterranean ...
Giovanni Chimienti +4 more
wiley +1 more source
The use of multibeam sonar mapping techniques to refine population estimates of the endangered white abalone (Haliotis sorenseni) [PDF]
, 2006 Multibeam sonar mapping techniques provide detailed benthic habitat information that can be combined with the data on species-specific habitat preferences to provide highly accurate calculations of populations in a particular area. The amount of suitable
Butler, John +4 more
core
Sub‐annual spatiotemporal dynamics of sediment and organic matter storage in beaver ponds
Earth Surface Processes and Landforms, Volume 51, Issue 2, February 2026.Ponds higher up the beaver cascades showed increasing erosion of sediments following heavier rainfall events, whereas those further down showed increasing sediment accretion. Following periods with less intense rainfall all ponds showed net sediment accretion.
Gareth Bradbury +4 more
wiley +1 more source
A fully‐automatic side‐scan sonar simultaneous localization and mapping framework
IET Radar, Sonar & NavigationSide‐scan sonar is a lightweight acoustic sensor that is frequently deployed on autonomous underwater vehicles (AUVs) to provide high‐resolution seafloor images.
Jun Zhang +3 more
doaj +1 more source
Jurnal Teknologi Perikanan dan Kelautan, 2017 Berdasarkan hasil deteksi dasar laut menggunakan side scan sonar dalam pencitraan benda-benda di dasar laut dapat menghasilkan berbagai variasi gambar yang digunakan untuk pencitraan objek-objek dasar laut, selain itu dapat memberikan informasi dalam ...
Dwi Charnila, Henry M. Manik
doaj +1 more source
The Rise of Certificate Transparency and Its Implications on the Internet Ecosystem
, 2018 In this paper, we analyze the evolution of Certificate Transparency (CT) over time and explore the implications of exposing certificate DNS names from the perspective of security and privacy.
Amann, Johanna +8 more
core +1 more source
Comparative study between acoustic signals and images for detecting seabed features
Egyptian Journal of Aquatic Research, 2019 This study aims to provide a recent seabed characteristic of ridges along the eastern coast of Alexandria on the Egyptian Mediterranean Sea. Side scan sonar was used for acoustic imaging and Quester Tangent Corporation (QTC) VIEW for acoustic signal ...
A. Hamouda +3 more
doaj +1 more source
Video imaging in turbid water [PDF]
In order to describe seabed habitats and to identify and quantify spatial patterns information is needed at different scales. Whereas ground-truthing techniques are used to gain point information, remote sensing techniques are used to obtain information ...
Dalfsen, J.A., van
core +2 more sources
Method for shaping and aiming narrow beams [PDF]
, 1981 A sonar method and apparatus is discribed which utilizes a linear frequency chirp in a transmitter/receiver having a correlator to synthesize a narrow beamwidth pattern from otherwise broadbeam transducers when there is relative velocity between the ...
Heyser, R. C.
core +1 more source