Blog
Feature: Preparing to Fly
An industry insider provides an overview of the advantages of using UAS for surveying as well as common misconceptions, plus preparation steps for surveyors and firms.Unmanned aircraft systems (UAS) represent a culmination of advancements in miniaturization, electronics, optics, batteries, and data-processing techniques. After being widely used in military and security operations for the past 10...
Where Theory Meets Practice: Transformations and Reference Frames, Part 2
In the previous article (PSM Dec. 2013), I mention the practical problems of control being in different reference frames, and I present the surveying solution to this problem. In this article I address how to determine if the localization process was successful. To do this we will need to look at the statistics of the...
Using Google Earth to Make 3D Models
No, I haven’t gone crazy; in fact quite the opposite. I was sent a visualisation of a wind farm from a company this week, and the back of my mind was niggling at me, telling me that I could do better at little or no cost. My first few attempts were involving QGIS2Threejs (QGIS 3D...
Editor’s Desk: Change in the Air for Aerial Lidar and UAS
By David A. Brown I have been in the geospatial industry for 35 years, first as a geologist and a geophysicist, and then in the photogrammetric industry, where I have worn many hats. And I’ve seen quite a bit of change. I’m writing this after attending back-to-back the 2014 winter MAPPS (Management Association for Private...
Feature: Scanning Speaks Volumes
Laser scanning technology steers an experienced Indiana surveyor to new directions. by Larry Trojak With decades of survey experience under his belt, Barry Hennessy is no stranger to—nor is he resistant to—change. He has seen the industry, the technology that supports it, and his business evolve over time. So when presented with the opportunity to...
xyHt News Links: 2/13/15
Esri Launches New Site to Find Open Data PDF3D Announces Major New Release for 3D PDF Software Suite (PDF3D News) Commercial UAV Expo Announces Call for Speakers with Deadline of March 6 Trimble’s Pocket-Sized R1 GNSS Receiver Enables High-Accuracy Data Collection with Smart Devices Judge Rules Against LightSquared in Claims Against GPS Firms Pix4D expands...
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