Mobile Lidar Systems Today and Tomorrow

The Promising Future of Mobile Mapping and Laser Scanning
Mobile Lidar systems (MLSs) are used with increasing frequency for three-dimensional (3D) mapping applications along various corridors because of their extreme ease in capturing high-resolution 3D topographic data. This article examines the current state of the mobile Lidar system market before looking ahead to the future scope for mobile mapping and laser scanning, including potential challenges that lie ahead. Mobile Lidar systems are frequently used for 3D mapping applications along various corridors because of their extreme ease in capturing comprehensive high-resolution 3D topographic data at normal speeds. An MLS observes a corridor and nearby objects in the form of their... (read more)
2018-07-13 03:12:14

Highest Ever Resolution

A Delta 2 rocket carrying the GeoEye-1 satellite lifted off on Saturday 6th September 2008 at 11.50am from Vandenberg Air Force Base, California. Weighing 1,955kg, the satellite can capture every piece of the Earth up to every two days at approximately 10.30am local time. This interview presents further details and strategic considerations.<P>   Sixth September 2008 must have been a very exciting day - what were your feelings on reaching this milestone? GeoEye first made history in September 1999 with the launch of its sub-metre resolution Ikonos satellite, then the highest-resolution commercial earth-imaging satellite. This title now goes to GeoEye-1.... (read more)
2008-12-10 12:00:00

Unmanned Aerial Vehicles for Glaciological Studies

Airborne Survey of Fountain Glacier’s Terminus Region
In July of 2010, researchers from the Department of Geography at the University of Calgary used a lightweight unmanned aerial vehicle (UAV) to carry out an airborne survey of the terminus region of Fountain Glacier on Bylot Island, in the Canadian Arctic. The survey comprised 16 flight lines, with a total of 148 photos being obtained from an average height of 300m above the glacier surface. A detailed surface model of the glacier and a 10cm resolution orthophoto were produced. The results from this survey will be used to quantify future changes in glacier mass and changes to surface flow... (read more)
2010-10-04 04:23:12

Bringing Colour to Point Clouds

Until now, most commercially available airborne Lidar systems have operated on one single wavelength, reflecting energy from a pulse which is then used for classification or visualisation. New developments have produced the first multispectral Lidar systems which scan using laser pulses in a number of different wavelengths. Multispectral Lidar data contains valuable information about the objects scanned. The fast-moving advancements in this field are likely to represent the next technological leap in Lidar systems. (By Sam Fleming, Iain Woodhouse and Antoine Cottin) Lidar systems have fundamentally changed the world of mapping and surveying. Airborne systems can cover large areas and... (read more)
2015-04-03 09:51:58

Mapping the Seafloor with Remote Sensing and Satellite Imagery

An Analysis of the Techniques and Benefits of These Methods
70% of the Earth is covered by water, but so far just 7% of it has been surveyed (Mars, Venus and the Moon are better surveyed). Hydrography as a science has changed dramatically since the first measurements were made by Alexander Dalrymple and James Cook with lead lines and sextants. Singlebeam echosounders were invented in the 1920s – a technology still used today for mapping the seafloor. This method of using echosounders can produce very high-resolution bathymetric data but the high operational costs and the slow working process make it economically unsuitable for covering large areas. However, with the ongoing expenses of... (read more)
2018-06-19 09:23:54

Trimble European Headquarters

Role of Positioning in Improving Work Processes
Founded in 1978 in Sunnyvale, California, US, Trimble provides positioning solutions that enable professionals in many areas to improve their work processes. As well as utilising positioning technologies such as GPS, laser and optics, solutions include software content and wireless technologies to tightly couple the field and back office. The company has a worldwide presence, with more than 3,400 employees in over eighteen countries. Trimble’s European headquarters are in Raunheim, Germany. This article results from a visit to Trimble's European headquarters and kicks off a new monthly column in which one of our editors will report and reflect on a... (read more)
2007-09-19 12:00:00

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

The FIG Standards Network and Standards in Surveying

A simple inspection of still-existing Roman roads, aqueducts and canals shows that the Romans were exceptionally skilled engineers. Shoe sizes provide a person’s shoe fitting size. There are many different shoe-size systems used in the world today. Wi-Fi is a family of wireless networking technologies, commonly used for local area networking of devices and Internet access. Wi-Fi and internet technologies are particularly important in the situation we find ourselves in today. But what do Roman roads, shoe sizes and Wi-Fi have to do with surveying and indeed FIG? Surprisingly they have a lot in common… What do Roman ruts have... (read more)
2020-05-08 01:44:28

The Art of Monozukuri

Myzox
Aichi prefecture in the centre of Japan is the home of Japanese ‘monozukuri’, in Japanese, ‘craftsmanship with inexhaustible enthusiasm and science’. It is also the place where major international players in the automobile, power-tools and chemical manufacturing industries have been founded. Here too, Myzox also came into being, founded upon and carrying with it all the tradition of ‘monozukuri’. The founder began the company in 1950, originally as a small woodworking plant. In 1954 a licence was obtained to manufacture measuring instruments by approval of the Japanese Ministry of International Trade and Industry, and the company started producing wooden staves,... (read more)
2011-05-30 02:45:54

Camera Laser Scanner

Geo-knowledge for Preservation of St Maria Maggiore, Italy
Image-based modelling is still the most widely used approach in building documentation and 3D investigations, but panoramic camera laser scanners are gaining in importance. They offer large fields of view, good accuracy and direct photo-texturing. The authors have tested the information content and performance of such systems in 3D modelling of St Maria Maggiore, the ancient church in Bergamo, Italy. Technology is moving towards the development of an automated hybrid measurement system that may be called the "panoramic camera laser scanner", consisting of a Lidar device solidly integrated with a calibrated digital camera. Such new devices collect spatial point-clouds and,... (read more)
2007-07-07 12:00:00
Search Filter