Focus: Lidar

Lidar, which stands for Light Detection and Ranging, is a remote sensing method that uses light in the form of a pulsed laser to measure ranges (variable distances) to the Earth. These light pulses—combined with other data recorded by the airborne system— generate precise, three-dimensional information about the shape of the Earth and its surface characteristics (NOAA, 2016).

Lidar technology

Must Read

9 Revolutionary Lidar Survey Projects

9 Revolutionary Lidar Survey Projects

The history of Lidar goes back to the early 1960s. In 1969, a laser rangefinder and a target mounted on the Apollo-11 spacecraft was used to measure the distance from the Earth to...

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About the Focus Stories

Every month we will focus on a specific theme, featuring a selection of articles which have previously been published in GIM International magazine, to present a complete recap of the subject. If you don't want to miss these themed recaps, sign up for the newsletter (sign up here).

Recent Trends in Four Lidar Technologies

Recent Trends in Four Lidar Technologies

Lidar technology is synonymous with 3D point clouds. To get the most out of 3D point cloud data, it is necessary to step back and continually consider the newest trends in Lidar te...

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Lidar Scanning by Helicopter in the USA

Lidar Scanning by Helicopter in the USA

In recent years, use of unmanned aerial systems (UASs) has soared as a means for capturing geodata by images and Lidar. However, this does not mean that proven platforms, such as h...

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Reconstructing a Church in 3D

Reconstructing a Church in 3D

Reconstruction and maintenance work in historical buildings such as churches requires detailed and accurate information about them, but it can be difficult and expensive to acquire...

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Interpolation of Lidar Point Clouds

Interpolation of Lidar Point Clouds

For representing terrain heights INSPIRE, which is aimed at creating an EU spatial data infrastructure, has developed specifications for digital terrain models (DTMs). DTMs are pre...

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Future-proof Data Storage

Future-proof Data Storage

Point cloud datasets have proven to be useful for many applications, ranging from engineering design to asset management. While point clouds are becoming denser and more accurate,...

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Mobile Lidar for Urban Streetscapes

Mobile Lidar for Urban Streetscapes

Surveying And Mapping, Inc. (SAM, Inc.) performed a mobile Lidar survey of the historic Sixth Street district in Austin, Texas, USA, for an urban planning project being conducting...

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Lidar Flight Planning

Lidar Flight Planning

Airborne Lidar has become a regular technology for acquiring accurate, consistent and dense point clouds. However, the constraints on specifications, available sensors and aerial p...

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Lidar Quality Assurance

Lidar Quality Assurance

Basic tools for processing Lidar point clouds, which can be extended depending on needs, provide a flexible platform for service providers and users alike. The companies Dielmo 3D,...

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Airborne Lidar in Rainforest

Airborne Lidar in Rainforest

At the experimental forest site Paracou in French Guiana, a range of data is being collected to enable the short-term dynamics within the tropical rainforest canopy to be better un...

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About Lidar

Lidar map of Britain

LIDAR

Lidar, or Light Detection and Ranging surveying, is a measuring system that uses light. It is widely used in archaeology, forestry, geography, geology, seismology, remote sensing and contour mapping and is spreading to many more geomatics applications. The market for laser scanning is growing strongly as more efficient and cost-effective ways of processing Lidar data create new possibilities in a range of different fields, including construction and engineering, industrial facilities, topographical applications and cultural heritage. GIM International is closely monitoring these developments and will continually keep you updated on the innovations in this ever-changing market through this dedicated Lidar page. Whether you are interested in latest articles and news on Lidar in general or in specific topics like Lidar Survey and Mobile Lidar, you will find it here!

Airborne Lidar

Downtown Dublin as a Lidar Point Cloud

Downtown Dublin as a Lidar Point Cloud

The advance of Lidar data acquisition technologies is substantially increasing the amount of spatial data obtained and it is becoming cost-prohibitive to process it manually. Artif...

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The Multispectral Journey of Lidar

The Multispectral Journey of Lidar

Optech Titan-3 has ushered in the era of multispectral airborne laser scanning, but multispectral terrestrial laser scanning (TLS) is still only available via research instruments,...

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