Virtual Surveyor Introduces Enhanced Cut-and-Fill Mapping in Drone Surveying Package

Virtual Surveyor has added cut-and-fill mapping capabilities to Version 7.0 of its popular drone surveying package. The new functionality enables users to quickly perform volume difference calculations and generate cut-and-fill maps from drone images captured on two or more different dates. “Calculating volume differences between surface models derived from drone imagery now takes less than a minute instead of hours…and the results are more accurate,” said Tom Op ‘t Eyndt, CEO of Virtual Surveyor in Belgium. “The entire workflow of cleaning the surface models and subtracting one from the other can be accomplished in Virtual Surveyor without exporting data to... (read more)
2019-09-12 01:24:18

Geospatial Data in Support of 3D Cadastre

Zooming in on Recent Technical Developments
The urbanization trend is leading to an increasing number of people living in cities, thus also placing new demands on cadastral registration. To be able to register the complex infrastructures and built-up areas properly, the cadastre will need to consider the third spatial dimension. The 3D cadastre is based on 3D parcels (spatial units) which are single volumes (or multiple volumes) of space. Although the technology offers numerous possibilities for implementation of the 3D cadastre, there are still some open issues, as this article explains. We live in a three-dimensional world. Over the past decades, there have been an increasing... (read more)
2019-09-11 11:15:15

Hexagon to Showcase its Smart Cities & Nations Portfolios at Intergeo

Hexagon, a global leader in sensor, software and autonomous solutions, is showcasing its Smart Buildings & Infrastructure and Smart Cities & Nations portfolios at the Intergeo trade show and conference in Stuttgart, Germany, 17-19 September. The event’s theme, 'Knowledge and Action for Planet Earth', and special focus on the expansion of digital technology in mobility, construction and location intelligence applications, tie directly to Hexagon’s overarching value proposition: to shape production and urban ecosystems to become fully autonomous and connected. As stated by Hexagon’s president and CEO, Ola Rollén, “The ultimate form of data leverage is when tasks and processes become... (read more)
2019-09-11 10:44:27

Obituary: Michael Oliver, FRICS, FCInstCES, FBEng (1933-2019)

Michael Oliver, one of the founder members of The Surveying Association (TSA), sadly passed away on 6 August 2019 after what can best be described as a groundbreaking and illustrious career as a surveyor. Michael will be fondly remembered by those doyens of the survey profession as a man of great imagination and professionalism. Michael commenced his career in surveying with the Ordnance Survey in 1949, before undertaking his two years of national service in 1951 with the Royal Engineers School of Military Survey, serving with the Topographic Squadron in Egypt, Iraq and Cyprus. On leaving the services, Michael joined... (read more)
2019-09-03 03:24:03

Esri Joins Group on Earth Observations as Associate Member Organization

Esri has announced its membership of the Group on Earth Observations (GEO). The new GEO Associates category allows commercial and nongovernmental entities to apply to join existing member institutions in activities promoting GEO’s goals and ideals. GEO is an intergovernmental organization devoted to advancing the universal accessibility of open data and promoting sustainability resulting from Earth observations. Esri’s new Associate member status acknowledges Esri’s supportive involvement with GEO over the last six years, which has included the development of interoperability between GEOSS (Global Earth Observation System of Systems) and ArcGIS Online, allowing global information in open data sites built on... (read more)
2019-09-03 10:26:03

InSAR Used to Create Ground Stability Maps

Zooming on a Groundbreaking Revolution
Satellite radar interferometry (InSAR) is a technique that can measure millimetre-scale movement of the ground from space. It does this by comparing the return echoes, and thus the signal-path length, from two or more radar images taken over the same place, over time. Although ground movement using satellite radar was first demonstrated as long ago as 1989 (Gabriel, Goldstein, & Zebker, 1989), it was not until the launch of the European Space Agency’s Earth Resources Satellite-1 in 1991 that a consistent archive of radar images began to be assembled that allowed further development of the technology for terrestrial applications. Modern... (read more)
2019-03-07 05:09:42

Classifying Urban Poor Areas with Satellite Imagery

Hannes Taubenböck and his team at the German Aerospace Center (DLR) are using very high-resolution (VHR) satellite imagery, supplied by European Space Imaging, combined with auxiliary surveys to develop a base model classification system for the shape and structure of urban poor areas around the world. Slum, favela, tenement… whatever term you use, nearly every country in the world has some form of urban poor areas.  Taubenböck, Kraff and Wurm identify these locations as 'Arrival Cities', defined as places offering relatively affordable housing serving as an access to a city, its society and its functions (a concept based on Doug... (read more)
2019-08-21 12:02:07

Monitoring Earth's Skin to Advance Farming and Climate Knowledge

A bright-red twin-engined aircraft, equipped with ultra-high-resolution thermal imaging technology, has been scouring the agricultural heartlands of Europe this summer. It was no search and rescue exercise, but an initial step towards building a proposed new satellite system capable of recording the temperature of Earth’s skin in intricate detail. The objective is to work towards increasing the resilience of agriculture to future water scarcity and variability, but it will also deepen our understanding of Earth’s climate system. The instrument on board, called HyTES, is an advanced thermal imager built by NASA’s Jet Propulsion Laboratory. It has been surveying agricultural and... (read more)
2019-07-24 10:41:55

Delta Solutions

Topcon’s Delta Solutions is a suite of deformation monitoring technology that make geosensor networks simple and easy to manage. With scalable and robust hardware, reporting, visualization and alarm features, Delta Solutions are flexible for any project’s monitoring data recording and processing needs. Topcon Delta Link Delta Link provides hardware support for autonomous operation in the field. Connected via Ethernet or Wi-Fi and with external battery back ups for the standard power supply, Delta Link is always connected, even during power outages. Topcon Delta Log Accessed via a secure web portal, Delta Log is an intuitive interface for managing device observation... (read more)
2019-07-22 02:45:49

Airbus to Develop CO3D Earth Observation Programme for CNES

The French Space Agency (CNES) has awarded the CO3D (Constellation Optique 3D) contract to Airbus. Under this agreement, Airbus will deliver a global high-resolution Digital Surface Model (DSM). Following launch, expected end of 2022, the Airbus-made CO3D constellation, comprising four identical satellites, will deliver 50cm resolution stereo imagery across the world on a daily basis. The data acquired will feed a cloud-based processing chain operated by Airbus and integrating CNES’ algorithms, to produce a cutting-edge 3D map of the Earth’s landmass. Designed to weigh approximately 300kg, the CO3D satellites will join Airbus’ fleet of optical and radar satellites, strengthening the... (read more)
2019-07-16 09:55:14
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