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 National Geographic features Vassar College’s analysis of Gothic Cathedrals through “exquisite precision” of Leica Geosystems laser scanners
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 Laser Scanning technology to end the dedicated survey field crew?
 The visionary origins of Leica Geosystems HDS business and laser scanning products
 UK's Plowman Craven cautions success in Scan-to-BIM still involves expertise
 SPAR launches new SPAR Insider podcast series with Leica Geosystems HDS executive Geoff Jacobs
 Regional survey society uses Leica HDS solutions to train, aid maintenance at local museum
 Leica C10 and Cyclone help analyze structural integrity of threatened local heritage in South Africa
 Leica ScanStation C10 reduces cost, improves accuracy on aging dam civil survey
 Leica C10, CloudWorx bring big benefits to small firm's football field/track renovation project
 HxGN LIVE 2014 showcased cutting-edge 3D immersive technology utilizing Leica ScanStation P20 data
 University's Leica ScanStation C10 aids important Canadian archaeological discovery
 HDS Highlighted in GW’s Review of HxGN LIVE 2014
 Leica C10 laser scanner reveals hidden geometry of Washington National Cathedral
 Hexagon goes “Beyond the Machine” to create synergistic solutions with its HDS technology
 Aging New York World’s Fair towers scanned with Leica C10 to better guide restoration decisions
 Airport tower construction uses Leica ScanStation C10, Cyclone for pre-fabrication of 1000 trusses
 Boston land survey firm's ScanStations C10 and P20 pay dividends on business success
 Major, New “Time Scanners” TV series features Leica HDS laser scanners
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  Land Development Today
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  A Crash Course
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Technology Basics

Understanding Spot Size

Understanding Spot Size for Laser Scanning
In "Understanding Spot Size for Laser Scanning," Geoff Jacobs takes an in-depth look at an aspect of 3D laser scanning that can easily be misunderstood or even overlooked entirely. This article appears in the October 2006 issue of the Professional Surveyor Magazine.
Article Excerpt:  "Several features of a laser scanner contribute to the level of defi nition it is capable of achieving in a high-defi nition survey. This article provides insight into spot size, as I have found that many professionals do not fully understand or appreciate the important subtleties of this feature. As reported in an earlier article (Professional Surveyor Magazine, February 2005), several features of a scanner contribute to the level of definition or resolution that can be achieved via the data it collects. Since the greatest differentiating technical feature of a laser scanner, compared to traditional survey tools, is the detail it can collect, it helps to clearly understand these key contributing features:
  • Scan density
  • Scan noise
  • Accuracy of each measurement
  • Spot size

Generally, the higher the scan density, the less noisy the data, the higher the accuracy of each measurement, and the smaller the spot size, then the higher the defi nition of the survey."

To read more of the Professional Surveyor article "Understanding Spot size in Laser Scanning," download the PDF below.



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