Navigating a Portable Robotic Device by a 3D imaging sensor

2010 ◽  
Author(s):  
Cang Ye
Keyword(s):  
3D Imaging ◽  
Robotic Device ◽  
Imaging Sensor

scholarly journals A universal 3D imaging sensor on a silicon photonics platform

Nature ◽  
2021 ◽  
Vol 590 (7845) ◽  
pp. 256-261
Author(s):  
Christopher Rogers ◽  
Alexander Y. Piggott ◽  
David J. Thomson ◽  
Robert F. Wiser ◽  
Ion E. Opris ◽  
...  
Keyword(s):  
Silicon Photonics ◽  
3D Imaging ◽  
Imaging Sensor

scholarly journals 3D Imaging Sensor.

1992 ◽  
Vol 10 (2) ◽  
pp. 171-176 ◽  
Author(s):  
Kosuke SATO ◽  
Seiji INOKUCHI
Keyword(s):  
3D Imaging ◽  
Imaging Sensor

Robotic Device for 3D Imaging of Scour Around Bridge Piles

2012 ◽  
Author(s):  
James C. Fadool ◽  
Griffin Francis ◽  
Jonathan E. Clark ◽  
Guifeng Liu ◽  
Victor DeBrunner
Keyword(s):  
3D Imaging ◽  
Scanning System ◽  
Bridge Scour ◽  
Robotic Device ◽  
3D Image ◽  
Bridge Foundations ◽  
Prototype Development ◽  
Important Concern ◽  
Processing Procedure ◽  
Portable System

Bridge scour is an important concern for standing structures with piles footed underwater. The scour process that leads to the weakening of bridge foundations can result in (unexpected) loss of service, and can create unsafe conditions for the vehicles and persons using the bridge, particularly during flood conditions. Currently, stationary devices or divers are deployed to detect this condition; however these devices are expensive and diving in such conditions is inherently dangerous. Therefore, a need exists for an inexpensive and portable system that is able to determine and estimate the amount of scour around a pile. One approach is to use a sonar based scanning system, to construct a 3D image for interpretations and evaluations analysis. This paper details prototype development, image processing procedure, and initial experimental results of such a device.

Simulation of a new 3D imaging sensor for identifying difficult military targets

2008 ◽  
Author(s):  
Christophe Harvey ◽  
Jonathan Wood ◽  
Peter Randall ◽  
Graham Watson ◽  
Gordon Smith
Keyword(s):  
3D Imaging ◽  
Imaging Sensor

New 3D imaging sensor: gaining range and texture

2002 ◽  
Author(s):  
Zonghua Zhang ◽  
David Zhang ◽  
Xiang Peng ◽  
Xiaotang Hu
Keyword(s):  
3D Imaging ◽  
Imaging Sensor

Design and calibration of an IVEM for general 3-dimensional imaging of non-diffracting materials

1992 ◽  
Vol 50 (2) ◽  
pp. 1040-1041
Author(s):  
Neil Rowlands ◽  
Jeff Price ◽  
Michael Kersker ◽  
Seichi Suzuki ◽  
Steve Young ◽  
...  
Keyword(s):  
3D Imaging ◽  
Tomographic Reconstruction ◽  
Three Dimensional ◽  
3 Dimensional ◽  
3D Microstructure ◽  
Image Translation ◽  
Digital Correlation ◽  
On Line ◽  
Mechanical Stage ◽  
Projection Angle

Three-dimensional (3D) microstructure visualization on the electron microscope requires that the sample be tilted to different positions to collect a series of projections. This tilting should be performed rapidly for on-line stereo viewing and precisely for off-line tomographic reconstruction. Usually a projection series is collected using mechanical stage tilt alone. The stereo pairs must be viewed off-line and the 60 to 120 tomographic projections must be aligned with fiduciary markers or digital correlation methods. The delay in viewing stereo pairs and the alignment problems in tomographic reconstruction could be eliminated or improved by tilting the beam if such tilt could be accomplished without image translation.A microscope capable of beam tilt with simultaneous image shift to eliminate tilt-induced translation has been investigated for 3D imaging of thick (1 μm) biologic specimens. By tilting the beam above and through the specimen and bringing it back below the specimen, a brightfield image with a projection angle corresponding to the beam tilt angle can be recorded (Fig. 1a).

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