Category Archives: Lidar/Imaging

Outlook 2020’s 40 Under 40

The following is xyHt’s 2020 collection of 40 under 40: profiles of motivated and accomplished young professionals under 40 years of age. Click on each name to view their profiles below. Kwabena Obeng Asiam Researcher & Lecturer – Leibniz University Published PhD candidate in land administration; FIG Young Surveyors Ghana Evaluating the evidence and making...

First Look at a New Scanner

Above: xyHt publisher Neil Sandler checks out Trimble’s X7 at INTERGEO. With the Trimble X7, there’s no going back (for calibration).  About a month before INTERGEO 2019, I started to hear rumblings about a new device from Trimble. Some said it was a laser scanner, some a new total station, but no one was ready...

Walkaround Mobile Scanning Part 2

Above: A backpack type of walkaround mobile scanning system was used to capture this site for a standard topo survey. Credit: Wantman Group Inc. Part 2: Applications and addressing challenges In Part 1 of this two-part article, I noted that walkaround mobile scanning is being rapidly adopted by the market. I described it in general...

A Dam Good Mix

Above: A view of the Brighton Dam in Brookeville, Maryland, from one of the project’s UAVs. Combining UAVs and 3D computer vision can make infrastructure inspections cost-effective. More than 70% of the 90,000 dams scattered across the U.S. are, according to the American Society of Civil Engineers (ASCE), half a century old. The age of dams,...

3D Evidence

Diagram software helps the New Mexico State Police enhance their extensive forensics work. Reconstructing what happened at the scene of a traffic accident or a crime is a complex undertaking involving scientific methods, physical evidence, deductive reasoning—and their interrelationships. It also requires hardware to gather data and software to analyze it and display it. Laser...

Clear Scanning on the Clearwater

Above: The survey included collecting bathymetric data on the river bottom and bridge substructure with multibeam sonar as well as capturing above- and below-waterline mobile mapping data with the Leica Pegasus: Two mobile sensor platform. Two well-paired engineering firms used high-accuracy mobile mapping to combine bathymetry and lidar data for a fast-turnaround topographic survey of...