Article Archive

An extensive archive of all articles published on GIM International

The Pitfalls of Working with Lidar

The Pitfalls of Working with Lidar

The arrival of unmanned aerial vehicles (UAVs or ‘drones’) has democratized the Lidar market forever. Everyday projects can be flown easier and faster, and sensors are getting lighter, more accura...

Visualizing Point Clouds in Game Engines

Visualizing Point Clouds in Game Engines

Direct utilization of dense, coloured point clouds in a virtual world is motivated by many reasons. The point clouds themselves are efficient to produce with 3D mapping methods. The immersive visualiz...

High-resolution Topography of a World Heritage Cave

High-resolution Topography of a World Heritage Cave

TLS and SfM photogrammetry have been used for the geodetic surveying and 3D mapping of the Ochtiná Aragonite Cave in Slovakia. This world-famous karst landscape of significant geological, geomorpholo...

Mapping Radiation in Chernobyl

Mapping Radiation in Chernobyl

The use of UAV-Lidar is being tested in the complex terrain of the Chernobyl Exclusion Zone. The aim of the University of Bristol team is to demonstrate that, in the event of a nuclear incident, it co...

Large-scale UAV-Lidar Survey in the Tropics

Large-scale UAV-Lidar Survey in the Tropics

With a total length of 2,789km, the Trans-Sumatra Toll Road Project is one of Indonesia’s National Strategic Projects and the longest toll road project in Southeast Asia. In order to keep the projec...

Creating a Digital Twin of the Earth

Creating a Digital Twin of the Earth

An unprecedented scientific effort to Lidar-scan the entire surface of the Earth before it’s too late... that’s how Christopher Fisher, the founder of the Earth Archive, describes his initiative. ...

The Use of Airborne Lidar to Visualize History in 3D

The Use of Airborne Lidar to Visualize History in 3D

Airborne Lidar and 3D modelling technologies have emerged as the newest – and among the most valuable – geospatial tools available to archaeologists in their efforts to gain insights into key hist...

The Challenges of Surveying the Faroe Islands

The Challenges of Surveying the Faroe Islands

Remotely situated in the northern Atlantic Ocean, roughly equidistant from Scotland, Iceland and Norway, the Faroe Islands form a rugged and rocky archipelago. The cool and cloudy weather, with strong...

Handheld Mapping of One of Europe’s Largest Caves

Handheld Mapping of One of Europe’s Largest Caves

Geospatial mapping specialists and technology from GeoSLAM have been involved in a project to map the Lombrives cave in southern France. The Human Adaption Institute conducted a pioneering isolation e...

The Rise in UAV Inspections for Civil Infrastructure

The Rise in UAV Inspections for Civil Infrastructure

UAVs with a higher level of autonomy can make civil engineering inspections safer, faster and more accurate, plus they support the monitoring of infrastructural changes over time. The increasing devel...

The Shifting Boundaries of Point Cloud Processing Time

The Shifting Boundaries of Point Cloud Processing Time

Time issues associated with processing point clouds are hugely frustrating, but they are nothing new. And the shifting boundaries mean that we’re destined to forever play the waiting game, according...

Improving Efficiencies with Panoramic Basemaps

Improving Efficiencies with Panoramic Basemaps

A new basemap combines 360-degree aerial imagery and precise location data, providing an immersive new way to view and experience the built world from every cardinal direction. Basemap imagery offerin...

Automatic Segmentation of Point Clouds in Architecture

Automatic Segmentation of Point Clouds in Architecture

A new algorithm has been developed that automatically identifies architectural elements and creates 3D models of building interiors. Over the last decade, the demand for digital twins has increased in...

The Merging Worlds of Spatial Data and Construction

The Merging Worlds of Spatial Data and Construction

After a slow, decades-long start, the digitization of construction has finally gained a firm foothold. While it is true that digital models are often used – and sometimes required – to visualize h...