Bringing Geography into Everything

GIM International Interviews Ed Parsons
As Google’s geospatial technologist, Ed Parsons is responsible for evangelising Google’s mission to organise the world’s information using geography. GIM International caught up with this ‘man with a mission’ in Barcelona during one of his countless foreign trips. (By Wim van Wegen, GIM International) You’re the geospatial technologist at Google, responsible for evangelising Google’s mission to organise the world’s information using geography. Can you describe that mission? In many ways it’s quite a unique role since the number of people within Google that are really focused on outside the organisation is quite limited. A key aspect of the role is... (read more)
2015-08-20 11:21:42

Laser Scanning Technology Challenged

Shortcomings in Spatial Documentation of Heritage Sites
In this month’s Insider’s View Prof. Heinz Rüther puts some critical points on the shortcomings of laser-scanning technology in the spatial documentation of heritage sites. We invited manufacturers of laser-scanning sensors and software to comment on his challenging observations. Nearly 70% of the companies responded (ten in total) and seven felt qualified to reply: Optech, Riegl, Leica Geosystems, 3rd Tech, Visual Learning Systems, TopoSys and I-SiTE 3D Laser Imaging. We thank all respondents for their time and effort. Critical observations made by Prof. Heinz Rüther include the following. (1) The processing time of laser-scan data can be up to ten... (read more)
2007-02-23 12:00:00

Realizar un Catastro Actualizado en Colombia

Entrevista a José Agustín Wilches: Presidente de la Comisión de Geomática de la SCI
El Presidente de la Comisión Técnica Permanente de Geomática de la Sociedad Colombiana de Ingenieros (SCI), José Agustín Wilches, se mostró poco optimista ante la posibilidad de actualizar el catastro nacional colombiano a mediano plazo debido a la burocracia arraigada en el país. Adicionalmente a lo anterior, remarcó la amplia la brecha que tiene la nación, estimando que la causa del conflicto que se ha vivido por más de cincuenta años es justamente la tenencia de la tierra. Entonces, la seguridad jurídica de la tierra es prácticamente imposible que se logre mientras no se firme la paz y se llegue... (read more)
2016-12-01 02:34:45

Potential of Small Satellites

GIM Interviews Dr Rainer Sandau, Chairman, International Academyof Astronautics (IAA)
Small satellites for earth observation are an important ongoing development in space research. How can mapping and disaster management benefit from small-satellite systems? What is the potential and what the challenges? Are small satellites an inferior alternative for developing countries that cannot afford large satellites? This month’s interviewee, Dr Rainer Sandau, provides answers to these and other questions. What are mission, scope and organisational structure of IAA? IAA encourages international scientific co-operation through scientific symposia and meetings and through the work of six commissions dedicated respectively to Space Physical Sciences, Space Life Sciences, Space Technology and System Development, Space System... (read more)
2007-04-17 12:00:00

The Power of Geography

At the end of the tumultuous eighteenth century the British government ordered its Board of Ordnance, the defence ministry of its day, to survey the country’s south coast. Today Ordnance Survey (OS) is a self-financing £100-million-a-year civilian organisation, still part of UK government but since 1999 having ‘Trading Fund’ status. Its workforce of around 1,500 people includes three hundred surveyors. How is OS coping with today’s technological challenges and social needs? What are the product trends, and what opportunities are offered by INSPIRE? Vanessa Lawrence, at the OS helm since September 2000, kindly answered these and other questions.<P> What are... (read more)
2008-06-05 12:00:00

Good Governance, Good Geo-info

Essential Role for GI at all Levels
Where just two decades ago spatial data was mainly carried on paper maps, map and three-dimensional topographic data is now accessible via Google Earth. Where accurate positioning was once the professional pride of highly trained geodesists, we now see such services provided by GPS-based consumer products. This revolution in technological developments and demand for information implies the need for continuous upgrading of professionals: ‘lifelong learning’. Lifelong learning is relevant not only for the professionals concerned but also for their organisations. These are in a permanent state of flux in order to adjust to their continually changing envir-onment. This may flow... (read more)
2006-09-21 12:00:00

UAS-supported Agriculture: Still for Innovators

Greatest Potential on Small Farms
While unmanned aerial systems offer huge possibilities in modern farming, most of them lie in the future. These airborne vehicles currently mainly deliver images that are subsequently combined with other input in the farm-specific management system. In the future they will be able to contribute to land management and individual crop-product delivery based on real-time analysis. Another very promising segment for UAS-supported precision agriculture is water management. Precision agriculture is a relatively young concept, dating from around the turn of this century. The first products were focused on add-on guiding systems for tractors. These give a good return on investment,... (read more)
2016-04-28 10:30:33

Producing High-quality 3D Point Clouds from Structure-from-Motion Photogrammetry

How to Produce High-quality 3D Point Clouds
Anyone involved with structure-from-motion (SfM) photogrammetry has probably questioned which type of processing software is necessary for them to produce quality 3D point cloud data. Many SfM software packages exist that allow for the generation of 3D point clouds from image sequences acquired via unmanned aerial systems (UASs). Each of these software packages provides different workflows and parameters for implementation of SfM processing and for point cloud densification using multi-view stereo (MVS) algorithms. To examine the influence of terrain on the results, this study compares differences in point clouds generated by three different types of SfM software.  It is well... (read more)
2017-09-28 10:35:02

An Awakening in India: Interview with Bharat Lohani

Since the July 2014 issue of GIM International is dedicated to Lidar point clouds, it should come as no surprise that it contains an interview with a leading expert on this exciting aspect of the geomatics spectrum. Dr Bharat Lohani, who is leading the Lidar teaching and research group at the renowned Indian institute of IIT Kanpur and is a member of the magazine’s editorial board, was a logical candidate. In this interview he talks about India's role in the industry, his company Geokno, developments within Lidar technology and the geomatics programme at IIT Kanpur.   (By Wim van Wegen... (read more)
2014-07-28 09:58:29

Mapping an Oil Pipeline

DEMs and Ortho-imagery for Colombia from Dual-band Side-looking Radar
Adverse weather and terrain conditions meant the Cano-Limon oil pipeline in Colombia had never been accurately mapped until orthorectified images and digital elevation models covering an area of 94,000km2 were created using airborne dual-band interferometric IFSAR simultaneously acquired X and P-band data. The authors report on main aspects of the project. The Cano-Limon oil pipeline extends nearly 780km from the Cano-Limon oilfield in Colombia’s Arauca region along the north-western border with Venezuela to a port in Covenas. When fully operational the pipeline can carry up to 20% of Colombian petroleum production, a major source of national revenue. In collaboration with... (read more)
2006-07-24 12:00:00
Search Filter