Digitizing Reality: Automated 3D Point Cloud Data Processing Using AI

Intelligent Point Clouds
Instruments for digitizing the 3D real environment are becoming smaller, more lightweight, lower-cost and more robust. Accordingly, they are finding increasingly widespread usage, not only on surveying tripods for the highest accuracy, but also on mobile platforms such as autonomous vehicles, drones, helicopters, aircraft, robotic vacuum cleaners, trains, mobile phones, satellites and Martian rovers. Lidar uses laser scanning, while photogrammetry records images from one or more cameras which may be moving. Each laser scan records tens of millions of data point positions and colours in a point cloud, and hundreds of such point clouds may be combined. This article discusses... (read more)
2020-02-25 10:56:50

Lidar Point Cloud Segmentation

A Novel Framework for Processing Terrestrial Lidar Data
Terrestrial Lidar data has great potential to produce measurements for as-built building information modelling (BIM). Unfortunately, processing hundreds of millions of points, often contaminated by substantial noise, can be tedious and time-consuming. Normal variation analysis (Norvana) segmentation is an automatic method that can segment large terrestrial Lidar point clouds containing hundreds of millions of points within minutes. Thanks to the high speed, point density and accuracy of modern terrestrial laser scanning (TLS), as-built BIM can be conducted with a high level of detail. But TLS captures not only useful geometric information but also unwanted objects, such as people, animals or... (read more)
2019-05-10 02:00:42

Pointfuse Laser Scanning Software Set to Transform Digital Construction Workflows

Pointfuse has released the latest version of its advanced point cloud processing software that converts the millions of individual measurements captured by laser scanning and photogrammetry. Featuring new streamlined classification to ensure maximum efficiency and multicore processing for unlimited conversion power, the new version of Pointfuse is set to transform workflows within digital construction, facilities management and virtual design applications. “Pointfuse is designed to make the use of point cloud data more accessible by removing many of the traditional barriers to use,” commented Mark Senior, regional sales director at Pointfuse. “Obstacles such as processing time and computer power, incompatibility within... (read more)
2019-08-20 10:40:47

Taking Full Advantage of the Benefits of UAS Technology

Leveraging UAS technology across surveying and engineering sectors is demanding. Meeting the expectations of accuracy and accountability requires the best in expertise, methodology and equipment. The latest unmanned aerial system (UAS) photogrammetric hardware and software now enables surveyors to capture millions of survey measurements on the ground, where they would previously have measured only hundreds. It is essential to have the best-quality equipment, software and workflows to ensure this data is accurate, robust and defensible for professional use. Geosyntec is a leading consulting and engineering firm that works with private and public sector clients to address new ventures and complex... (read more)
2019-06-25 10:58:53

Charles Thomson

Charles Thomson is the product manager for Correvate's Vercator software and is the interface between commercial and technical activities in the business. He is also involved in programming and assessment of the technology in Vercator linking it to market needs. As part of his PhD he implemented new capture technology, developed point cloud processing software for geometry processing and sat on industry working groups. Along with academic publications some of his work has appeared in Wired Magazine. Before his PhD, Thomson worked as a surveyor and was involved in projects for clients including London Underground, Network Rail and Crossrail. (read more)
2020-03-31 10:56:50

What's the Difference Between SLAM Algorithms for Handheld Lidar?

While researching handheld Lidar scanners, you will probably scour spec sheets, cross-reference features, and read about software workflows. But that will get you only part of the way to understanding the market – you will also need to compare the simultaneous localization and mapping (SLAM) algorithms that power these devices and enable them to create a point cloud as you walk. The problem is that SLAM algorithms can be difficult to understand if you're not a software engineer. Good news: There are a few criteria you can use to judge SLAM algorithms. These criteria will help you understand what sets... (read more)
2019-12-24 09:48:10

Pointfuse Showcases New Scan-to-BIM Workflow at Digital Construction Week

At this year's Digital Construction Week, Pointfuse demonstrated a new scan-to-BIM workflow, aimed at bringing reality capture to building information modelling (BIM) and virtual design and construction (VDC) practitioners. Pointfuse software converts the millions of individual measurements captured by laser scanning and photogrammetry into usable 3D mesh models. The ability to classify objects within Pointfuse, both automatically and manually, has had a huge impact on how as-built data is used within the construction workflow.   New features also on show at Digital Construction Week, which took place from 16-17 October at Excel, London, included streamlined classification to ensure maximum efficiency and... (read more)
2019-10-22 01:03:28

3D Modelling for Construction

When it comes to 3D modelling for construction, what are the advantages and disadvantages of photogrammetry versus Lidar in terms of accuracy, complexity and cost? Breaking away from laser measurement in construction is a taboo subject, perhaps hampering the use of photogrammetry. In construction, aerial survey has enormous time-saving benefits for measuring groundwork areas. Data can be used for asset classification, construction validation as well as health and safety. In particular, regular scans provide a time series of work in progress to detect new issues, managing risk rather than responding to it. This article looks at the state of the... (read more)
2019-10-15 03:28:52

Paracosm Partners up with Geo-Plus to Expand Land Survey Offering

Paracosm has announced a partnership with Geo-Plus to offer the VisionLiDAR point cloud processing software in a bundle with the PX-80 handheld scanner. Joining forces means both companies now offer an end-to-end 3D mapping workflow for a variety of applications. “We are delighted to offer this software to our PX-80 customers” says Amir Rubin, Paracosm president. “The versatile VisionLiDAR works as a standard point cloud processing tool – a critical need in many workflows – but also includes comprehensive functionality for specific applications like topography generation, city assets extraction, and tree extraction. It allows us to offer a truly complete... (read more)
2020-02-21 09:19:16

James Crawford

James Crawford is a research associate at Ordnance Survey currently working in Singapore. He has worked at OS since 2007 in various capacities and has successfully delivered improvements relating to core geospatial information processing, data standards and development activities. (read more)
2018-07-11 10:43:49
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