Results 251 to 260 of about 75,493 (303)
A 2D, 3D and text dataset of fictional forensic scenes (FFS). [PDF]
Data BriefDaudigny H, Grussenmeyer P.
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A paintbrush laser range scanner
Computer Vision and Image Understanding, 2006A new hand-held laser range scanner is introduced that can capture multi-view range images of an object and integrate the images without registering them. The scanner uses a reference double-frame that acts as the coordinate system of the object. Range images captured from different views of the object are in the coordinate system of the double-frame ...
Ardeshir Goshtasby
exaly +2 more sources
Semiconductor Laser Digital Scanner
SPIE Proceedings, 1989A novel semiconductor laser digital scanner composed of a monolithic semiconductor laser array and a conventional plastic lens is proposed. A high speed scanning, a simultaneous light emission, and a wide angle scanning are achieved. The semiconductor laser array consists of monolithically integrated ten index-guided 780nm emitters spaced by 0.3mm. The
Mikihiko Shimura +4 more
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A range scanner with a virtual laser
Image and Vision Computing, 2003Abstract A scanner is developed that can capture range and color data from four sides of an object and combine the data into a model of the object. The scanner has four synchronous heads that scan an object from four sides in a coordinate system that is attached to the object.
James Albamont, Ardeshir Goshtasby
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2021
One focus of present chapter is defined by the further development of the technical vision system (TVS). The TVS mainly contains two principal parts, the positioning laser (PL) and the scanning aperture (SA), which implement the optomechanical function of the dynamic triangulation. Previous versions of the TVS uses stepping motors to position the laser
Lars Lindner +7 more
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One focus of present chapter is defined by the further development of the technical vision system (TVS). The TVS mainly contains two principal parts, the positioning laser (PL) and the scanning aperture (SA), which implement the optomechanical function of the dynamic triangulation. Previous versions of the TVS uses stepping motors to position the laser
Lars Lindner +7 more
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Applied Optics, 1984
An input scanner based on laser technology is described that is utilized to scan cards or documents and generate digital video signals. Scanning at 18.9 lines and 18.9 pixels/mm (480 lines and pixels/in.) with a He–Ne laser, video data are generated at either 3.8 Mbit/sec (slow speed) or 11.5 Mbit/sec (high speed). Material to be scanned is placed on a
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An input scanner based on laser technology is described that is utilized to scan cards or documents and generate digital video signals. Scanning at 18.9 lines and 18.9 pixels/mm (480 lines and pixels/in.) with a He–Ne laser, video data are generated at either 3.8 Mbit/sec (slow speed) or 11.5 Mbit/sec (high speed). Material to be scanned is placed on a
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2016 17th International Carpathian Control Conference (ICCC), 2016
This contribution describes our work focused on using a laser scanner for a railway application. In the work the laser scanner SICK LD-HD MRS400102 is used and tested on suspended mining locomotive of Ferrit, s.r.o. company. The scanner is tested for detecting an object in front of the locomotive operating in mining conditions.
Jan Grepl, Lenka Landryova
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This contribution describes our work focused on using a laser scanner for a railway application. In the work the laser scanner SICK LD-HD MRS400102 is used and tested on suspended mining locomotive of Ferrit, s.r.o. company. The scanner is tested for detecting an object in front of the locomotive operating in mining conditions.
Jan Grepl, Lenka Landryova
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Origami Inspired Laser Scanner Design
IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society, 2021This paper presents a laser scanner with folded paper hinge and actuated by voice coil motor. The system has several advantages compare to conventional MEMS micro scanner due to the novel material and design of the hinge. We choose paper as the material to form the hinge and the mechanism to steer the mirror, which not only reduces the cost ...
Shen-Yun Chu, Shao-Kang Hung
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A three-dimensional evaluation of a laser scanner and a touch-probe scanner
The Journal of Prosthetic Dentistry, 2006The fit of a dental restoration depends on quality throughout the entire manufacturing process. There is difficulty in assessing the surface topography of an object with a complex form, such as teeth, since there is no exact reference form.The purpose of this study was to determine the repeatability and relative accuracy of 2 dental surface ...
Anna, Persson +3 more
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2017
The presented book chapter provides an overview and detailed description about actual used laser scanner systems. It explains and compares the mainly used coordinate measurement methods, like Time-of-flight, Phasing and Triangulation and Imaging.
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The presented book chapter provides an overview and detailed description about actual used laser scanner systems. It explains and compares the mainly used coordinate measurement methods, like Time-of-flight, Phasing and Triangulation and Imaging.
openaire +1 more source