TAG: lidar

Lidar and UAV reveal Mayan “megalopolis” below Guatemalan jungle

February 20, 2018By
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Lidar and UAV technology has revealed hundreds of previously unknown Mayan ruins in the Guatemalan rainforest. In what is considered biggest aerial lidar survey in the history of archaeology, a vast and complex civilization has been discovered. The University of Houston’s National Center for Airborne Laser Mapping (NCALM) used Teledyne Optech’s Titan sensor to identify raised highways, and complex irrigation and terracing... read more

International LiDAR Mapping Forum 2018

February 5, 2018By
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The International LiDAR Mapping Forum 2018 conference program has been announced and features sessions on UAS lidar, data acquisition approaches, advanced geo-technologies, Geiger Mode & Single Photon, lidar sensors, and more. The full conference program is available. More than 60 mapping experts will be speaking at ILMF 2018, including professionals from research organizations, government agencies and private enterprise, as well as... read more

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Geologist uses lidar to monitor Greenland Glacier ice loss

November 30, 2017By
A Riegl VZ-6000 laser scanner, operating at 1064 um wavelength, serves as the backbone of the ATLAS system.

Leigh Stearns, a geologist with the University of Kansas, is working with a Riegl VZ-6000 ultra long range terrestrial laser scanner, incorporated into an ATLAS (Autonomous Terrestrial Laser Scanning) system, to monitor rates of ice loss on the Helheim Glacier, a tidewater glacier undergoing large-scale changes due to global climate change. “Lidar is an emerging technology for the earth sciences... read more

Think 3D, Applanix combine on UAV-based airborne lidar mapping

November 27, 2017By
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The Think 3D Stormbee multicopter integrated with Trimble’s AP15 provides efficiency, accuracy and performance for lidar surveys from unmanned vehicles. Historically, lidar-based aerial surveys were impractical for all but the largest unmanned systems. Because of Applanix’ development of small, lightweight and low-powered direct georeferencing solutions, airborne lidar scans from small drones are now practical, cost-effective, highly accurate and excellent options for lidar surveys, according... read more

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Riegl launches three waveform lidar sensors

October 9, 2017By
VQ-880-GH topo-hydrographic airborne laser scanning system.

Riegl has launched new waveform lidar sensors in all of its segments. It introduced the products at Intergeo 2017, held in September in Berlin. The Riegl VQ-780i waveform processing airborne laser scanner is a high-performance, rugged, lightweight and compact airborne mapping sensor designed for ultra-wide-area mapping and high productivity. The versatile system is designed for highly efficient data acquisition at low, mid and high... read more

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LizardTech granted US patent for lidar point-cloud compression

September 22, 2017By
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LizardTech, a provider of software solutions for managing and distributing geospatial content, has been awarded a U.S. patent for the compression of lidar point clouds (US 9753124). The patented technology provides lossless compression of point clouds captured by airborne lidar sensors or terrestrial laser scanners for easy and cost-effective processing, storage and transmission of data sets. “Lidar systems capture terabytes... read more

GIS users come from every field

July 20, 2017By
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I just returned from the 38th Annual Esri International User Conference (Esri UC), which is the largest gathering of GIS (geographic information systems) professionals in the U.S. No GIS event in the U.S. is close to its scale. Every year for the past 38 years (I presume, as I’ve only attended the last 11), Esri President Jack Dangermond begins by... read more

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Teledyne Optech coastal and ocean monitoring helps with disasters

June 14, 2017By
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Coastal Zone Mapping and Imaging Lidar System (CZMIL) to be shared at conferences as a critical rapid environmental assessment tool for both natural and manmade disasters Teledyne Optech’s Coastal Zone Mapping and Imaging Lidar (CZMIL) system is a critical rapid environmental assessment tool for monitoring natural and man-made disasters. From detecting sewage pipe leaks, mapping oil slicks and measuring coastline changes... read more

UK’s Bluesky acquires US aerial survey company Col-East

March 15, 2017By
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British aerial mapping innovator Bluesky International is expanding its business into North America following the acquisition of Col-East Inc., a Massachusetts-based aerial survey company. Col-East has been mapping the Northeast U.S. for 65 years and will continue as Col-East International Ltd., forming the U.S. arm of Bluesky. Founded in 1952, Col-East has a long-established reputation for high-quality topographic mapping with... read more

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Mapping avalanches for safety

February 10, 2017By
A researcher prepares to use lidar to scan snow depth at Arapahoe Basin in Colorado. (Photo: Riegl)

In 2014, an avalanche injured two Colorado avalanche control workers. They had been using an “avalauncher” compressed gas cannon to shoot charges into slopes that posed a serious avalanche risk to motorists below, but the charge exploded too early, in the barrel of the launcher. The accident prompted a re-evaluation of the Colorado Department of Transportation’s avalanche control techniques. Now,... read more