State of the Art in 3D City Modelling

Six Challenges Facing 3D Data as a Platform
Semantically enriched 3D city models have the potential to be powerful hubs of integrated information for computer-based urban spatial analysis. This article presents the state of the art in 3D city modelling in the context of broader developments such as smart cities and digital twins, and outlines six challenges that must be overcome before 3D data as a platform becomes a reality. (This article is a co-production of seven authors, all of whom are mentioned at the end of the text.) 3D city models, as digital representations of urban areas, can be used to facilitate many applications, such as urban... (read more)
2020-04-09 10:46:22

How the New EU Directive Will Change the Geospatial Data Market

Authoritative Data in the Spotlight
The European Union (EU) is adding a new dimension to the digital data-distribution policies of mapping agencies, cadastres and land registries. In two years’ time, a new EU directive will make it compulsory to provide open and free access to the most crucial, publicly funded geospatial and Earth observation data for use and re-use. EuroGeographics and EuroSDR, the two most renowned pan-European organizations in these matters, have reacted positively, assuming there will be sufficient national funding. After all, both society and the geomatics sector stand to benefit from increased use of ‘authoritative’ geospatial data. Published by the EU last summer,... (read more)
2020-04-07 03:35:25

Christian Heipke

Christian Heipke is a professor of photogrammetry and remote sensing at Leibniz Universität Hannover, where he currently leads a group of about 25 researchers. Currently he serves as ISPRS Secretary General. His professional interests comprise all aspects of photogrammetry, remote sensing, image understanding and their connection to computer vision and GIS. His has authored or co-authored more than 300 scientific papers, more than 70 of which appeared in peer-reviewed international journals. He is the recipient of the 1992 Otto von Gruber Award, the 2012 Fred Doyle Award, both from the International Society of Photogrammetry and Remote Sensing (ISPRS), and the... (read more)
2020-04-01 04:09:49

Pix4D Unveils New Generation of Photogrammetry and UAV Mapping Tools

Switzerland-based photogrammetry leader Pix4D has released its next-generation software suite addressing the modern-day geospatial professional challenges. Developed in close collaboration with customers and partners, Pix4Dsurvey, Pix4Dmatic, Pix4Dinspect and Pix4Dscan will contribute to revolutionizing the way professional customers operate and deliver their services, the company states. Digital photogrammetry is an essential part of every modern surveyor's toolkit and has contributed to launching hundreds of new drone mapping businesses around the world. Pix4Dsurvey and Pix4Dmatic represent the next step in photogrammetry, addressing major challenges in the geospatial industry. New possibilities for photogrammetry point clouds Pix4Dsurvey is bridging the gap between digital photogrammetry... (read more)
2020-04-01 11:28:16

5 Questions to Philippe Simard, President of SimActive

SimActive has recently added Lidar to its point cloud processing solution and launched a new training programme for unmanned aerial vehicle (UAV or 'drone') mapping. 'GIM International' touched base with Philippe Simard, president of the Canada-based company to find out more. Besides Lidar and UAV mapping, this Q&A also zooms in on artificial intelligence (AI) and machine learning and envisions the advances in photogrammetry we may expect in the coming years. We also took the opportunity to ask him how the coronavirus outbreak is affecting business. How is the coronavirus outbreak impacting your business? The entire SimActive team is working from... (read more)
2020-03-26 08:46:49

From Imagery to Digital Reality: Earth Remote Sensing and Photogrammetry

20th Anniversary International Scientific and Technical Conference
2020-03-23 01:04:53

What Are the Main Issues to Consider before Using UAVs for Land Administration Projects?

Ask the Specialist
For our ‘Ask the Specialist’ features, we invite readers to send us their burning questions about geospatial surveying. We pass the questions on to relevant industry experts who provide comprehensive and detailed answers to point geospatial professionals in the right direction. This time, one of our readers asked about the key considerations before using unmanned aerial vehicles (UAVs) for land administration projects. Rohan Bennett and Mila Koeva share their advice. The almost ubiquitous UAV has been a key technology inspiring new thinking and disrupting land administration practice over the last decade. The flexibility and affordability of UAVs make them an... (read more)
2020-03-19 12:30:59

MakeItAccurate: A Revolutionary Global GNSS/INS Correction Service

Enterprise operations adopting geospatial technology require high accuracy in their digital twins to make them a viable alternative to the real world for measurement and inspection. The challenge is to achieve accuracy with one simple, repeatable, scalable workflow across global assets at massive scale. MakeItAccurate makes very high accuracy simple, accessible and reliable, anywhere. According to the developers, this is an industry game-changer.  The need for high accuracy positioning has traditionally been the realm of surveyors and engineers. It’s what makes geospatial data valuable. New technology, such as drones, are now bringing geospatial to a broader range of sectors such as insurance,... (read more)
2020-03-19 10:41:59

The Smartphone as a Professional Mapping Tool

To what extent will the smartphone become a professional mapping tool? Modern smartphones already contain many of the important functions to be used as mapping tools. However, whether they are suitable for use as such professionally depends not only on the built-in sensors, but also on the available computing power, RAM and data storage capacity. For data acquisition, a smartphone usually has two to three cameras, a GNSS sensor, an acceleration sensor and a gyroscope for positioning the system in 3D space. In addition, a smartphone has a magnetometer which displays the orientation or north direction by a compass, and... (read more)
2020-02-05 03:54:54

How to Choose Between the Many Geodata Acquisition Systems?

When the need arises for new acquisition equipment, whether because of expansion due to business success or to replace outdated tools, how can geospatial professionals decide beteen the countless alternatives on offer? Read on for some pointers from independent geomatics consultant Mathias Lemmens. How can we choose between the many geodata acquisition systems when our equipment needs replacing or we’re expanding due to business success? This seemingly simple question is surprisingly hard to answer, so I will outline some considerations. Improving workflows focused on a few, well-defined applications entails other concerns than when multiple business fields are covered. If your... (read more)
2020-02-24 01:35:33
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