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

Sustaining Infrastructure

Sustainability was the key word at this year’s Bentley Conference, expressed not only by its theme, ‘Best Practices for Sustaining Infrastructure’, but also through other initiatives, including the attempt to reduce the company’s carbon footprint by 15% before the end of 2009. The conference took place at the Convention Center in Baltimore, Maryland, US, from 28th to 30th May 2008.<P> To travel through Africa is to learn the meaning of sustaining infrastructure; there, neglected roads make moving from place to place a long and tantalising experience. Bentley chose the theme of sustainability to illustrate how infrastructure is the engine for... (read more)
2008-07-09 12:00:00

How Google Gave Geography its Groove Back

GIM International Interviews Ed Parsons
Once upon a time, the study of the Earth's surface, its features, inhabitants and phenomena was nothing more than a tiresome school subject for the average person on the street. Google has changed all that with its interactive map of the world. Stitched together from aerial and satellite footage, it has been downloaded more than 400 million times, with people and organisations putting it to all sorts of interesting uses, from spying on celebrities to locating the nearest hotel in a foreign city. We spoke to Ed Parsons, Google's geospatial technologist, to find out more about what lies ahead for... (read more)
2009-02-24 12:21:20

FIG Core Cadastral Domain Model Version 1.0

Distributed Cadastral Systems
FIG 2002 Congress in Washington was presented with a proposal to develop a (shared) Core Cadastral Domain Model, the FIG CCDM. Such a model broadly covers land registration and cadastre and provides an extensible basis for an efficient and effective cadastral system. Development proceeds based on a model-driven architecture, enabling communication among parties using a shared, model implied ontology. After four years of development, the authors here present CCDM Version 1.0. Important considerations during the design process were that the model should cover the most common aspects of cadastral registration all over the world and should follow international ISO and... (read more)
2006-10-23 12:00:00

Survey and GIS in San Diego

Everyone forms their own impressions of San Diego, but for surveyors and GIS folks in the Summer, it means the largest geospatial event in the world, the ESRI Survey & Engineering GIS Summit combined with the ESRI International User Conference. The 28th annual User Conference (UC) came in early August with the theme ‘Building New Opportunities’, the bulk of the Survey Summit running as prelude the previous weekend. The summit drew over four hundred attendees, a roughly 8% increase over last year. Both conferences featured a trade show. The summit also includes the Survey and Leadership Forum, actually, a Special... (read more)
2008-11-11 12:00:00

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

A Common Base Map for BC

‘Non-profit Society’ Business Framework
For the past four years British Columbia, Canada has been compiling a common cadastral base map for the joint benefit of stakeholders in three sectors: provincial (state) government, local municipal government and utilities. The business framework adopted is that of a 'Non-profit Society' with voluntary membership. The author reflects upon the founding process and presents lessons learnt. British Columbia (BC), which covers an area of 95,000km², has only one accepted legal Provincial Land Ownership Registry. Other rights, such as those pertaining to water and minerals, are issued and controlled by many provincial, federal and local departments. There are 133 local... (read more)
2006-06-27 12:00:00

Smart Factories Need Space and Time Anchors

Enhanced SDI-based Human-machine Interaction
Spatiotemporal referencing can be used to enhance contextualisation of Industrial Internet of Things (IIoT) data and information flows within ‘smart’ factories, according to Studio iSPACE in Austria. Its five-step approach models an adaptive workflow to organise large-scale 3D data of a production facility. The goal is to support the extended personnel-machine interaction for indoor positioning, production asset monitoring and location-based management. In the event of problems with a production line, every minute counts for the factory’s managers. Service staff must be able to respond as efficiently as possible. All necessary information should be directly available and location-based. Studio iSPACE, part... (read more)
2018-02-01 09:32:16

ASPRS Honorary Members Selected

Clifford W. Greve and Vincent V. Salomonson have been selected as the next Honorary Members of the American Society for Photogrammetry and Remote Sensing (ASPRS). Their nominations were recently approved by the ASPRS Board of Directors. This is the highest award bestowed by ASPRS and there can be only 25 living Honorary Members of the Society at any given time. Initiated in 1937, this lifetime award is given for professional excellence in recognition of individuals who have rendered distinguished service to ASPRS and/or who have attained distinction in advancing the science and use of the geospatial information sciences. Greve and... (read more)
2012-11-15 09:12:20

Preserving Technological Monuments in Russia

Terrestrial Laser Scanning of the Aurora Cruiser and the ‘Motherland Calls’ Statue
Technological monuments are vulnerable to decay. 3D modelling and documentation are essential to avoid them falling into irreparable decline and to enable future restoration. Terrestrial laser scanning (TLS) is a proven technology for capturing complex objects. Read about the TLS capture of two iconic technological monuments in Russia: the Motherland Calls statue and the Aurora cruiser. . (By Andrey Leonov and Mikhail Anikushkin, Russia) Technological monuments are more vulnerable to decline than paintings or manuscripts, since they are located outdoors and exposed to rain, temperature variations and other weather elements. They also often suffer from overdue maintenance due to a... (read more)
2016-08-09 08:58:22
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