Article Archive

An extensive archive of all articles published on GIM International

Airborne Lidar Bathymetry in Close Up

Airborne Lidar Bathymetry in Close Up

RIEGL tested the performance of its topo-bathymetric airborne laser scanning system in a transition zone context along the French Mediterranean coast. Initially planned as a UAV survey, tests were con...

Cable Inspections the Uncrewed Way

Cable Inspections the Uncrewed Way

XOCEAN recently completed 35 cable inspection surveys using a combination of Uncrewed Surface Vessels (USVs) and Uncrewed Aerial Vehicles (UAVs) between the Scottish mainland and Western Isles. There ...

Building a 3D World: Common Sources of Elevation Data

Building a 3D World: Common Sources of Elevation Data

As the demand for elevation data continues to rise, it is important that users match the level of reliability, accuracy and resolution of the data to their specific application to arrive at an appropr...

Vegetation Mapping Using Multispectral UAV Images

Vegetation Mapping Using Multispectral UAV Images

DJI recently introduced the P4 multispectral, a high-precision unmanned aerial vehicle (UAV or ‘drone’) which exploits the integration of multispectral cameras to facilitate agricultural and envir...

Why Geospatial Will Always Be a People-centric Profession

Why Geospatial Will Always Be a People-centric Profession

As geospatial professionals, we pride ourselves on being led by objective data that we can verify and trust. But like all humans, even we are not immune to bias, according to James Kavanagh. I was in...

Deconstructing Digital Cultural Heritage

Deconstructing Digital Cultural Heritage

Whether as 2D drawings or 3D point clouds, digital cultural heritage is becoming the norm in heritage documentation nowadays. However, raw digital data still requires manual labelling in order to add ...

The Need to Enthuse Youngsters about Surveying

The Need to Enthuse Youngsters about Surveying

The youngsters of today are the geospatial professionals of tomorrow, writes Wim van Wegen, which is why the industry urgently needs to increase its focus on the next generation. It was only after sev...

Advanced Urban 3D Modelling and Visualization

Advanced Urban 3D Modelling and Visualization

The automatic detection, data extraction, 3D modelling and visualization of buildings in urban areas using remote sensing data is an essential task in various applications such as cadastre, urban and ...

Towards a Coastline Base Map in Indonesia

Towards a Coastline Base Map in Indonesia

The accuracy of coastline data in Indonesia could be much improved by making use of Lidar bathymetry technology. In this article, the authors describe how Lidar bathymetry survey techniques were appli...

The Key Parameters of a Modern Lidar System

The Key Parameters of a Modern Lidar System

In the past, the effort of hardware integration and the necessary combination of different software tools was a major hurdle to gain a foothold in the field of laser scanning. This hurdle has now been...

EAASI Ascends to New Heights

EAASI Ascends to New Heights

More than 40 companies have joined EAASI since the European aerial mapping industry created the not-for-profit umbrella organization aimed at fostering joint interests less than two years ago. In this...

Lidar or Photogrammetry? Why Not Use Both?

Lidar or Photogrammetry? Why Not Use Both?

Is it possible to enhance point cloud accuracy and density by merging Lidar with photogrammetry technologies? Lidar data can penetrate trees and measure shadow areas to produce a very accurate point c...