Portable Laser Scanning System

3D Laser Mapping (UK) has developed a portable laser scanning system for mapping overhead infrastructure such as power lines. With adverse weather and over-grown vegetation increasingly causing damage to overhead cables, the system can be carried as a backpack to instantly map the position of cables and the proximity of nearby vegetation. 3D Laser Mapping developed the portable system following major power outages in Europe. Using mobile laser technology, the system links to specially developed software that automatically identifies areas of risk so that utilities can prioritise their maintenance activities. The system is highly portable; mounted on an off road... (read more)
2007-01-09 03:09:02

Laser-scanning and Heritage

Academic and Manufacturer Face Challenges
The March issue of GIM International carried the response of manufacturers of laser-scanning sensors and software to remarks made in the Insider’s View column on shortcomings of this technology in the spatial documentation of heritage sites. Based on his long-term experience in capturing heritage sites in Africa, Professor Rüther explains there is still ample room for development, a challenge for both academic and manufacturer. Judging from the responses to my original column, it appears some manufacturers interpreted my observations as rejection of laser scanning as a tool for heritage documentation. The opposite is true. Without doubt, laser scanning has high... (read more)
2007-04-17 12:00:00

Terrestrial Laser Scanning User Meeting

Optech is to organise its fifth International Terrestrial Laser Scanning User Meeting on 8th and 9th June 2010 in Prague, Czech Republic. Optech clients and expert users of static and mobile land-based scanning technologies will share their experiences and suggestions for best-practice implementation in an increasingly dynamic market. Presentation topics will include monitoring natural hazards and man-made structures, techniques for efficiently mapping large natural and urban landscapes, modeling inaccessible features, and analysing lidar data sets. "There has been a dramatic shift in surveying techniques in the past three years. This has been brought on by the introduction of cost-effective survey-grade... (read more)
2010-04-12 09:46:39

Laser Scanning on the Go

How Wearable Reality Capture is Shaping the Industry
As the world's population keeps growing and changes in buildings and infrastructures become more rapid, there is an increasing need to document this growth and these changes. A revolutionary approach to geospatial documentation on a local, individual scale can help to meet this need. New systems enable users to walk around unhindered while logging reliable data about time, position and the world in 3D. Referred to as ‘wearable reality capture systems’, this new concept is shaping how measurement professionals come to understand the world around them. Read this article to find out more about the impact of wearable reality capture on the industry... (read more)
2016-03-25 12:20:32

Mobile Laser Scanning Point Clouds

Status and Prospects of Automatic 3D Mapping of Road Objects
The demand for 3D maps of cities and road networks is steadily increasing and mobile mapping systems are often the preferred geodata acquisition method for capturing such scenes. Manual processing of point clouds is labour-intensive and thus time-consuming and expensive. This article focuses on the state of the art of automatic classification and 3D mapping of road objects from point clouds acquired by mobile mapping systems and considers the feasibility of exploiting scene knowledge to increase the robustness of classification. Management of roads, their maintenance or reconstruction,  requires inventories on pavement conditions, road markings and objects in the vicinity of... (read more)
2017-08-03 09:51:42

Airborne and Terrestrial Laser Scanning

Last month we reported back from the Intergeo trade show that it was all about three abbreviations: Airborne Laser Scanning (ALS), Terrestrial Laser Scanning (TLS) and Mobile Laser Scanning (MLS). This month a comprehensive text book, Airborne and Terrestrial Laser Scanning, appears from Whittles Publishing, aimed at students, researchers and practitioners. In just two decades all three scanning techniques have become well established survey techniques for acquiring (geo)spatial information. Yet publicly accessible knowledge about them has been broadly distributed over the literature. This concise book redresses the balance. Airborne and terrestrial laser scanning differ in terms of data capture mode,... (read more)
2009-12-29 11:50:58

Laser Scanning to Track Dinosaurs

3D Laser Mapping (United Kingdom) has supplied a high performance laser scanning system to assist with a European research project to map the footprints of dinosaurs. The project, jointly undertaken by the University of Manchester and Universitat Autònoma de Barcelona, used a Riegl laser scanner with integrated digital camera and satellite positioning technology to accurately record and locate individual dinosaur footprints. The project is tracing the movements of dinosaurs and is assessing the effects of weathering and erosion on the footprints.  “This project would simply not have been possible without the laser scanning system,” said Dr David Hodgetts, Lecturer in Reservoir... (read more)
2007-02-19 03:44:01

Mobile Laser Scanning in Venice

Grand Canal in Scan- and Image Data
High measurement rates and centimetre precision point-clouds are state-of-the-art in mobile laser scanning. The introduction of photogram­metric features as next logical step considerably expanded the horizon of potential applications. Digital 3D documentation of Venetian cultural heritage as represented by the Grand Canal has until recently been achieved only for a few individual buildings. Now, in a collaborative project carried out by Universitá IUAV di Venezia and mobile-scanning system VMX-250 manufacturer RIEGL Laser Measurement Systems, the entire Grand Canal area has been registered in time-stamped image and scan data, complete with precise location and position data. The IUAV CIRCE Photogrammetry Lab... (read more)
2011-03-28 03:27:18

Innovative Archaeological Laser Scanning Project

Laser scanning technology has been used to create a permanent and lasting record of post-mediaeval underground mines under the city of Bath, UK. The project by Oxford Archaeology employed laser scanning specialists APR Services to capture accurate measurements of the abandoned limestone workings at Combe Down. The laser-scanned measurements were used to create a permanent record of the internationally recognised heritage, wildlife and environmental site and inform stabilisation works to remove the very real threat to life and property posed by the unstable mine. Ianto Wain, head of Heritage Management at Oxford Archaeology, explained that laser scanning was the only... (read more)
2012-08-22 12:03:55

Laser Scanning in Deformation Measurements

Acquiring 3D Spatial Data of Bridges
State-of-the-art geodetic and remote sensing techniques can prove their potential through particular engineering applications. Here we discuss load test measurements of bridges over the Danube. Prior to the particular bridge surveying projects, accuracy analysis was carried out in the laboratory. We describe the shortcomings and limitations of remote sensing and propose the joint application of traditional and remote sensing technologies. We also provide recommendations for further applications of laser scanning in deformation measurement of structures. View Larger Map Terrestrial laser scanning is a state-of-the-art remote sensing technology that can rapidly acquire accurate three-dimensional (3D) spatial data. The primary engineering applications... (read more)
2009-03-03 12:00:00
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