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Construction of a High-Precision Underwater 3D Reconstruction System Based on Line Laser. [PDF]
Sensors (Basel)Xu H, Zeng Y, Qiu M, Wang X.
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Planetary Laser Interferometric Seismoacoustic Observatory. [PDF]
Sensors (Basel)Dolgikh G +4 more
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High Performance Laser Triangulation Ranging
Journal of Laser Applications, 1989Laser triangulation ranging can provide data rates to at least 10,000 points per second, with resolution on the order of one thousandth of an inch, while observing strongly uncooperative targets through hostile environments. Data rate has been increased to greater than 100,000 points per second for applications requiring high resolution 3-D maps of ...
C. Murray Penney, Brad Thomas
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Circularity measurement by laser triangulation
SPIE Proceedings, 1998The method and experimental results of circularity measurements by optical triangulation are presented. The measuring system is a laser based one, using a bi-cell detector with rectangular active surface shape and diagonal gap. The measured data were fitted with a parametric function depending on the position of the tested object center, relative to ...
Victor S. Damian +4 more
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Laser triangulation: fundamental uncertainty in distance measurement
Applied Optics, 1994We discuss the uncertainty limit in distance sensing by laser triangulation. The uncertainty in distance measurement of laser triangulation sensors and other coherent sensors is limited by speckle noise. Speckle arises because of the coherent illumination in combination with rough surfaces. A minimum limit on the distance uncertainty is derived through
R G, Dorsch, G, Häusler, J M, Herrmann
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Container integrity verification using laser triangulation
SPIE Proceedings, 2007We present a system for verifying the integrity of storage containers using a laser triangulation scanner, with applications in nuclear security. Any intrusion into the container shell and subsequent reconstruction of the surface inevitably leaves slight changes to the three-dimensional surface structure which the proposed system can detect.
Axel Busboom, Vítor Sequeira
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Pipe eccentricity measurement using laser triangulation
Image and Vision Computing, 2007A pipe eccentricity measurement system based on laser triangulation is presented. The custom measurement head implements the Scheimpflug condition to ensure maximum working depth and integrates an FPGA to perform real time image processing at a rate of 200 frames per second. The eccentricity of the pipe is estimated by approximating the position of the
P. Schalk, R. Ofner, P. O’Leary
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Surface registration using laser Triangulation techniques
2011 6th Colombian Computing Congress (CCC), 2011The present work corresponds to the development of a complete system (both hardware and software) for the reconstruction of 3D objects from 2D images, using low-cost laser technology. This software uses image capture via a camera and a tracking laser beam to capture the depth and better reconstruction of the object.
Edward Fuentes-Aliaga +1 more
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Testing bench for laser triangulation sensors
Sensor Review, 1998Laser triangulation is a very efficient non‐contact point‐measurement procedure, very similar to a mechanical gauge, but much faster. However, the special characteristics of the laser triangulation sensor (LTS) must be taken into account for its use. The correct selection of sensor and test‐equipment verification, complying with norm ISO 9001, can be ...
Claus P. Keferstein, Michael Marxer
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