Go with the Flow Towards Your Targets

GIM International Interviews Professor Martien Molenaar
The year 2010 will bring many changes to the International Institute for Geo-Information Science and Earth Observation (ITC). On 1st January 2010 ITC joins the University of Twente (UT) as its sixth faculty. The Deed of Conveyance was signed by Professor Dr Ir Martien Molenaar and UT president Dr Anne Flierman during the 59th Dies Natalis on 17th December 2009. Prof. Molenaar also steps down as rector of ITC on 1st January 2010. His successor, Prof. Dr. Ir. Tom Veldkamp of Wageningen University, has a background in agricultural and environmental sciences. In this interview Prof. Molenaar reflects upon a turbulent... (read more)
2010-01-28 02:34:51

Object-based Classification of Point Clouds

Augmenting 3D Geometry with Semantic Information
Today, the analysis of 3D point clouds acquired with topographic Lidar or photogrammetric systems has become an operational task for mapping and monitoring of infrastructure and environmental processes. Numerous applications require the identification and delineation of landscape objects and their properties. So far, many software solutions have been focused on the analysis of constructed and man-made objects, which are characterized by a regular and well-defined geometry (e.g. buildings, roads and other infrastructure). In comparison, the detection and analysis of natural landscape objects is challenging, since object boundaries might be fuzzy and the object characteristics within one class can be very... (read more)
2018-11-22 11:03:56

The Rising Demand for Total Stations and Terrestrial Laser Scanners

How the Booming Construction Business Boosts the Geospatial Industry
Increasing investments in large infrastructure and construction projects, and the rising role of building information modelling (BIM), are expected to drive the market for geospatial equipment. BIM’s close connection with spatial information makes it a familiar landscape and offers rich possibilities for surveyors and other geospatial professionals. Geomares – publisher of 'GIM International' and 'Geo-matching' – has analysed the user data and behaviour of thousands of members of the global geospatial community. It is interesting to see how the market of ‘traditional survey equipment’ such as total stations and terrestrial laser scanners is responding to the growing construction market and... (read more)
2019-02-05 02:33:23

Sensor Fusion for Precision Agriculture

Low-cost Lidar Camera System without GNSS
Precision agriculture has considerably benefited from the use of unmanned aerial vehicles, often combined with active ranging sensors like Lidar to gather information from underneath the crops, but existing systems are relatively expensive for the farming sector. In this project, researchers in Canada have used an integrated sensor orientation method for the local referencing of Lidar measurements. Their approach is based on loosely coupled, image-aided inertial navigation in which the pose of the camera replaces the GNSS measurements. The result is a low-cost solution that is useful for capturing topographic data of inaccessible areas as well as in GNSS-denied environments.... (read more)
2019-06-20 01:50:38

Laser Scanning of Damaged Historical Icons

Surveying Technology Is Heading for Maturity
Terrestrial laser scanning is becoming an increasingly preferred surveying technique for the 3D documentation of historical buildings. 3D point clouds provide a wealth of information which advanced 3D mapping software can exploit in a relatively simple way, at least when compared to the tedious surveying techniques of the past. However, effective cooperation between architects and the survey team of experts is necessary in order to get the best out of this geodata acquisition technology. In this article, the authors first provide an overview of equipment based on the size of the site and the surveying aim, and subsequently give four... (read more)
2019-10-31 09:16:04

3D BIM Models for Heritage Asset Management

Moving beyond the Field of Data Capture for Digital Preservation
Research undertaken under a collaborative doctoral partnership between Historic England and the University of Reading, UK, is moving beyond the field of 3D data capture for digital preservation. It considers how critical information for the conservation, repair and maintenance of historic buildings can be visualized in 3D BIM models and how BIM processes can be used for the management of structured datasets that inform conservation and repair programmes. A pilot study has been conducted using the work of the UK Antarctic Heritage Trust and historic British research base ‘E’ on Stonington Island, Antarctica, to consider this potential. Building information modelling... (read more)
2020-01-16 09:49:50

How Geospatial Surveying Is Driving Land Administration

Latest Innovations and Developments
Five years ago, 'GIM International' published an article titled ‘A New Era in Land Administration Emerges’. It outlined how innovative thinking coupled with quickly maturing, scalable technical approaches could transform land administration globally. To reach fruition, support from policymakers, world-leading private companies, modern geospatial technologies and a new professional mindset would be crucial. So what has happened since? Here, in close cooperation with the geospatial industry, 'GIM International' provides a major update, paying special attention to standardization, technical approaches and land data acquisition in the context of global policies. Policy Guidance and UN-GGIM The national cadastral and topographic mapping agencies... (read more)
2020-04-29 02:39:00

Changed Perspectives in Land and Water Management

Situated in the delta of the rivers Meuse and Rhine, the Netherlands have a long tradition in land and water management. The fertile soils along the rivers and coast were quickly occupied for food production, the waterbodies were used for transportation of people and goods, and along this transportation network settlements emerged. However, the proximity to water bodies also meant the risk of flooding. Since the very first beginning, the main aim was to reduce the risk of flooding by embanking the rivers. Dams and locks were constructed as well to keep water levels high enough for – cross border... (read more)
2020-05-11 11:51:40

Ten Years to Go to Achieve the Sustainable Development Goals

Unlocking Valuable Contributions of the FIG Working Week 2020
The countdown begins, only one decade to go to accomplish the Sustainable Development Goals (SDGs). The SDGs are the blueprint to achieve a better and more sustainable future for all and surveying professionals have a key role to play. It is therefore of crucial importance that FIG member organisations and surveyors are aware and prepared on how their work contributes to the achievement of the SDGs and vice versa.  The SDGs were appointed as one of the central themes during the FIG Working Week 2020. Many colleagues from the FIG community shared their experiences at practical and strategic level. In... (read more)
2020-05-12 11:02:05

Cartography for Everyone - You Too!

GIM International Interviews Dr David Fairbairn, Vice-President ICA Executive Committee
Since June 2004 ICA has been publishing a monthly one-page column in GIM International. Dr David Fairbairn is responsible for ensuring content for the ICA page and is himself a regular contributor. As vice-president he is further responsible for ensuring that ICA keeps an active eye on issues and paradigms affecting the practice of modern cartography. When was the International Cartographic Association (ICA) established and how is it organised in terms of structure? The International Cartographic Association was formally established in June 1959. But in fact it grew out of a series of international conferences addressing issues of common cartographic... (read more)
2005-12-29 12:00:00
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