Pavement Markings Auto-Extracted From Point Clouds

Image of point cloud BASF Automotive Solutions

Article Highlights:  The use of Mobile Laser Scanning for collecting highway conditions such as pavement markings is increasing. Since pavement markings are made intentionally reflective their return intensity can be used to auto-extract them from the point cloud. Extracting them can be a challenge given the accuracies of current MLS systems (cm-level), relative to the thickness of the markings (mm-level). […]

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InfraHack 2019 Launched by Hack Partners Focuses on Infrastructure

InfraHack 2019 borrows from the hugely successful results of the HackTrain. In this case the focus is on the broader issue of not just rail transportation, but infrastructure in general. Hack Partners, the company behind the “HackTrain” rail innovation movement to launch new initiative called InfraHack for the infrastructure sector. Industry heavyweights, Network Rail, Mott MacDonald, Bentley Systems, KPMG LLP […]

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Lidar Surveying is Gradually Being Democratized

Photo of UAV used for lidar surveying

Simon Ritchie, based in London is tracking the democratisation of Lidar Surveying, but his research shows that the pace is still slow, despite the emergence of the price crushing, autonomous vehicle market. Introduction Lidar has been used for land surveying for fifty years or more.  In days gone by the scanners were heavy and had to be carried by a […]

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Frequency Scanning Interferometry For High Accuracy

Frequency scanning interferometry uses a tunable laser to provide highly accurate distance measurements. It was first developed by researchers at the University of Oxford who were working on the Large Hadron Collider at CERN. The system they have developed enables a single measurement device to simultaneously direct multiple laser beams to many targets, measuring each with extreme accuracy.   If you […]

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Alluxa Makes Thin-Film Interference Filters for LIDAR

image of plane collecting Airborne Lidar

Alluxa is a world leader in high-performance optical filters and thin-film coatings. In this highly informative white paper Alluxa explains how their high-performance, ultra-narrowband interference filters improve LIDAR signal-to-noise ratios. Arguably the most versatile active remote sensing technique, LIDAR (Light Detection and Ranging) is used across platforms and across disciplines. Long known to be one of the most important technologies […]

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UAV LIDAR and the 400 ft FAA Ceiling Limitation

Photo of UAV Going Digital Requires Capturing a Digital Twin

When Jeff Fagerman, CEO and Founder of LiDARUSA provides his insights on an important topic like UAV lidar it is a good idea to take a few minutes to read what he has to say. Editor’s Note – This is one of the first documented examples of how the autonomous vehicle start-ups are putting pressure on the lidar manufacturers. It […]

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Standards are the Key to Harnessing Technology

Shane MacLaughlin, Managing Director at Atlas Computers in Ireland provides an in-depth look into the need for open standards. Topographic Survey Specification for Urban Projects Some years ago I chaired a working group hosted by Dublin City Council tasked with developing a robust specification for urban topographic survey projects.  This working group came into being at the behest of the […]

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Novel LiDAR Data Improves Our Understanding of Tropical Forests

Dr. Kim Calders and his team have just completed 2 months of field work in Australian tropical forests collecting both terrestrial and UAS lidar data to support a novel lidar data fusion methodology. Forest ecosystems contain more biomass than any other ecosystem. However, estimating biomass without cutting down trees is difficult. Traditional methods of estimating aboveground biomass (ABG) are based […]

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Electrical Network Asset Position and Condition Data

Data gathering is an essential task in order to understand the health of an electrical network. However, many operators are missing out on the cost efficiencies available through using technology to combine routine asset inspection patrols more effectively. In this interview David Langworth, General Manager at NM Group (part of Trimble Inc.) discusses how combining asset condition with other datasets […]

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Rising Star Program Supports Young Professionals

The American Society of Photogrammetry and Remote Sensing (ASPRS) has created the Rising Star program to identify and mentor young geospatial professionals. As a great example of the recognition of the importance of young professionals to the future of the geospatial industry, the ASPRS has developed the Rising Star Program. The first two recipients, Chris Stayte and Corey Ocshman, both […]

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SAM, LLC: Using Technology to Enhance Solutions

This article provides an inside look at Surveying and Mapping, LLC – SAM and how technology has helped them become the largest geospatial service company in the U.S. Background Surveying and Mapping, LLC (SAM) was founded in 1994 with a core guiding principle of leveraging the latest technologies to maximize value for clients. Today, SAM is the largest geospatial service […]

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TruePoint Laser Scanning Historical Documentation Case Study

TruePoint Laser Scanning recently completed the historical documentation of a very challenging project in Laredo, Texas. Task: TruePoint performed 3D laser scanning services for the as-built documentation of two historical homes and a Four Diamond Hotel in Laredo, Texas. With its beautiful gardens and its amazing view to Mexico and the Rio Grande River, this property is one of Laredo’s […]

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Drone Lidar Components Present Data Quality Challenges

LiDAR representation by Echo using a Riegl MiniVUX -1UAV.

The use of drone LiDAR requires significant training and expertise especially when using inexpensive systems. (Editor Note – This is a cautionary tale told in the author’s words about the perils of self-proclaimed drone lidar experts.) Training is Needed There are a lot of people with drones who are collecting aerial imagery and becoming self-proclaimed mapping professionals in the process, […]

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Underground Infrastructure Mapping with Mobile Lidar and GPR

Leica Pegasus2 Stream for underground infratructure mapping

Governments are beginning to mandate that underground infrastructure mapping be carried out as national policy. Underground infrastructure mapping of utilities and other infrastructure is one of the major challenges in creating a digital twin at the municipal, regional, and national level.  LiDAR reality capture of the above-ground ground features simultaneously with ground penetrating radar (GPR) scans of subsurface infrastructure at […]

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Rolling Shutter Effect Important in UAV Photogrammetry

Image of Figure 1

Many are not aware that photographs taken with a UAV are subject to the rolling shutter effect. (Be sure to watch the video at the end for great visual explanation.) The main disadvantage of UAV photogrammetry is that it uses non-metric cameras. These cameras have low-quality movable lenses, a small focal length, and most have a CMOS sensor with an […]

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Maximilian Boosfeld on Wingtra VTOL UAS

Photo of Maximilian Boosfeld CEO

Wingtra is the world’s leading producer of vertical take-off and landing – VTOL drones. The Early Years Wingtra Founder and CEO Maximilian Boosfeld was studying Mechanical Engineering at one of the top science schools in the world, ETH Zurich. (As evidence of the claim, Albert Einstein graduated from the same university.) During the studies he met many truly smart people. […]

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