Managing Massive Point Cloud Data: Performance of DBMS and File-based Solutions

Today, Lidar and photogrammetry enable the collection of massive point clouds. Faced with hundreds of billions or even trillions of points, the traditional solutions for handling point clouds usually underperform. To obtain insight into the features affecting performance, tests have been carried out on various systems and the pros and cons have been identified. (By Oscar Martinez-Rubi, Peter van Oosterom and Theo Tijssen, The Netherlands) Point clouds have traditionally been processed into grids, vector objects or other types of data to support further processing in a GIS environment. Today, point clouds are also directly used for estimating volumes of complex objects,... (read more)
2015-09-25 01:11:20

Exceeding All Limits

Intergeo 2005 Düsseldorf, Germany – A Preview
This year’s Intergeo, to be held at the Exhibition Centre in Düsseldorf, Germany from 4th to 6th October, is expected to exceed all limits. With opening extended to three whole days and exhibition space to 10,000m2, it certainly looks as though big things are expected. And if organiser Hinte-Messe predictions prove correct, some 17,000 visitors and 1,500 conference delegates will attend. Nearly five hundred exhibitors have booked a stand at the trade-fair. It is not only in statistics limits are being pushed. The theme of ‘Exceeding limits’ reflects a wish to increase awareness of European expansion, globalisation and its effect... (read more)
2005-09-28 12:00:00

Integrating the ‘Constructioneering’ Workflow Together

The How and Why of the Topcon and Bentley Partnership
Digitalisation and new technologies with the ability to revolutionise the geospatial industry are creating a new playing field for mapping and surveying professionals. This evolving landscape is also reshaping the industry, with new entrants gaining ground and established players seeking to collaborate and combine their specialist areas of expertise in order to offer a total solution. Wim van Wegen, content manager of ‘GIM International’, met with Ted Lamboo, senior vice president of strategic partners at Bentley Systems, and Ewout Korpershoek, executive vice president at Topcon Positioning Systems, at Bentley’s 2017 Year in Infrastructure Conference in Singapore. They discussed the partnership between... (read more)
2018-02-07 11:36:08

Oblique Airborne Photogrammetry (2)

Automatic Building Detection and Verification
Multiple view oblique imagery of very high resolution is a rich source of semantic information about buildings and other objects on the Earth’s surface. The efficient extraction of semantic information from such imagery requires automatic scene analysis for which new methods have to be developed. Here, the authors present new methods for automatic building detection and verification from oblique imagery. (By Markus Gerke, The Netherlands, Jing Xiao, China and Adam Patrick Nyaruhuma, Tanzania) The popularity of systematic collection of oblique airborne images will increase rapidly as it becomes easier for humans to recognise lateral parts of buildings and other elevated... (read more)
2014-04-23 08:49:54

Landscape Issues in Poland

Much of Poland’s rural landscape has unique cultural and aesthetic value and should be recognised as a national asset. In economic terms, however, small, scattered parcels demand thorough land consolidation, an activity that also threatens the landscape. How may land consolidation be used not only in reallocation but also to preserve the landscape? The authors propose studies to serve both aims. But, first and foremost, all parties must be made aware of the (economic) benefits of landscape preservation.<P> Polish rural landscape, the present farm structure of which has evolved over many centuries, is recognised as a valuable contribution to the... (read more)
2008-05-17 12:00:00

Foresight in Survey Education

GPS Teaching Outreach
It's no secret that GPS systems have changed surveying. To keep pace with industry, international educational systems need to teach students how to use GPS systems and modern survey equipment, such as robotic total-stations. Within the framework of the Educational Partnership Program more than five hundred educational institutions in North and South America and Europe have been supplied with Topcon survey and GPS equipment.   Surveyors using GPS equipment can do much more work in less time; using a GPS system means that a survey project that formerly took a crew five days is now completed in just three, with... (read more)
2009-12-04 11:40:27

NMCAs Pledge to Put Data Access at the Heart of EuroGeographics’ Activities

Facilitating access to geospatial information from official national sources is in the public interest and supports the public good say members of EuroGeographics. European National Mapping, Cadastral and Land Registration Authorities (NMCAs) recently agreed to put data accessibility at the heart of their association’s strategy. At its 2019 General Assembly – held from 6 to 9 October – hosted by Ordnance Survey Great Britain with support from Her Majesty’s Land Registry and Registers of Scotland, European National Mapping, Cadastral and Land Registration Authorities (NMCAs) agreed to make data accessibility a key priority. They also pledged to continue working in partnership... (read more)
2020-01-08 08:47:17

Uruguay Updates National Imagery to Support Sustainable Development

The last complete aerial photography collection effort in Uruguay was conducted in 1966‒1967 to produce a national dataset at 1:50,000 scale. Only parts of the country have been captured since that time. In 2015, recognizing the multiple benefits of updated cartographic information to support future development, the Uruguay government, through the IDEUy (Infraestructura de datos espaciales de Uruguay), initiated a project to map the nation. Based on a thorough evaluation of the alternatives, including aerial photography, Lidar and satellite imagery, the IDEUy chose aerial digital cameras as the best technology to update the Uruguayan geographic dataset. (this article is brought... (read more)
2019-09-02 09:30:56

Series on Capacity Building 2

FIG’s Building the Capacity
What are the key issues in capacity building facing organisations such as FIG, and how are they handled? What are the capacity-building initiatives currently spearheaded by FIG, and how might these be furthered through global partnerships? FIG president Stig Enemark thoroughly addresses these questions in this, the second article in our current series on Capacity Building. Capacity development arguably presents a central development challenge, as other social and economic progress depend on it. Given the pivotal role of secure tenure and access to land in underpinning economic development, it is vital that appropriate, sustainable structures are in place at national,... (read more)
2010-04-08 03:03:58

Fifty Years of Map Publishing in China

GIM International Interviews Bai Bo, president, SinoMaps Press
Based in Beijing, China, SinoMaps Press, the largest and oldest map publisher in the country, this year in December celebrates its fiftieth anniversary. The press produces 90% of China’s total map publications: over 3.6 billion copies and 12,000 titles in 2003. GIM International interviewed Sinomaps Press president Mr Bai Bo at the 2004 Beijing International Book Fair. Could you sketch for us the history of SinoMaps Press? SinoMaps Press, formerly known as China Cartographic Publishing House, is the largest and the oldest map publisher in China. Founded in 1954 with the merger of several private enterprises, the Press is an... (read more)
2005-03-17 12:00:00
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