A 3D Underwater Acoustic Camera — Properties and Applications

Hansen, R.K.; Andersen, Poul

doi:10.1007/978-1-4419-8772-3_98

Cited by 39 publications

(26 citation statements)

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“…Moreover, the 3D data provided are not real-time because these need a certain amount of time to scan the surroundings. A 3D imaging sonar captures a 3D point cloud in real-time without any additional device (Hansen and Andersen, 1993;Hansen and Andersen, 1996). However, its relatively low resolution and high cost are the primary drawbacks.…”

Section: Related Workmentioning

confidence: 99%

Underwater 3D Reconstruction for Underwater Construction Robot Based on 2D Multibeam Imaging Sonar

Song¹,

Choi²

2016

Journal of Ocean Engineering and Technology

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Section: Related Workmentioning

confidence: 99%

Underwater 3D Reconstruction for Underwater Construction Robot Based on 2D Multibeam Imaging Sonar

Song¹,

Choi²

2016

Journal of Ocean Engineering and Technology

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“…In the present study, the nanorobts don't need to communicate with each other. But when required active communication among nanorobots, sonar communication frequencies may reache up to 20µW@8Hz as ressonance rates and 3V supply [20], [19]. The nanorobot includes external sensors to inform it of collisions and to identify when it has encountered a chemical signal or abrupt changes of temperature for targeted areas.…”

Section: Sensingmentioning

confidence: 99%

Nanorobotics System Simulation in 3D Workspaces with Low Reynolds Number

Cavalcanti

Hogg

Shirinzadeh

2006

2006 IEEE International Symposium on MicroNanoMechanical and Human Science

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Abstract:We present a computational approach to enable the development of nanorobots operating in a fluid environment relevant for medical applications. Unlike the case of larger robots, the dominant forces in this environment arise from viscosity of low Reynolds number fluid flow and Brownian motion and such parameters are described throughout the paper. Hence, this paper describes a practical simulator that allows fast design methodology comparing various control algorithms for nanorobots and their suitability for different tasks. The simulator includes obstacles and identifiable targets, thereby providing a suitable environment for a typical nanorobot task: maintaining desired chemical concentrations near specific target areas.

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“…Three-dimensional data are obtained by a high resolution acoustic camera, the Echoscope [9]. The scene is insonified by a high-frequency acoustic pulse and a two-dimensional array of transducer gathers the backscattered signals.…”

Section: Pre-processingmentioning

confidence: 99%

“…Our data come from a high frequency acoustic camera [9]. Speckle noise is typically present due to the coherent nature of the acoustic signals.…”

Section: Introductionmentioning

confidence: 99%