Six Facts You Need to Know about 3D Reality Capture

Rapid changes in technology and computing power are affecting almost every aspect of our lives – from democratization and information access to communication and how we visualize the world around us. As technology becomes smaller, more affordable and more automated, 3D reality capture is becoming more accessible to a wide range of applications and everyday users, not just specialists. Whether you are a savvy user or new to 3D reality capture, Jürgen Mayer, president of Hexagon Geosystems’ Reality Capture Division, explores six facts in this interview. 3D reality capture solutions form the bridge to transform the real world into mirrored... (read more)
2019-10-07 08:52:33

The Role of Surveyors in the Evolution of BIM

Building information modelling (BIM) is becoming more commonplace within construction sectors globally, combining technology with improved collaboration to better manage projects and give them the best chance of complying with time and budget constraints. However, the BIM life cycle and efforts to espouse it are almost futile if surveying is taken out of the equation or, more realistically, brought in too late. It can be good to have a structure that is successfully using BIM to be delivered on time and within budget, but if it or any of its components are in the wrong position, the consequences can be... (read more)
2019-10-02 10:25:44

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. Modern InSAR is now used by a range of industries concerned with ground or structural stability, from building development and control, to oil and gas production, to mining, to road and rail management. This article explains some key aspects of InSAR technology, including its innovative use to produce ground stability maps. Phase Shifters InSAR is based upon... (read more)
2019-03-07 05:09:42

Monika Kuffer

Dr Monika Kuffer received her PhD degree from the University of Twente, an MSc in human geography from the TU Munich (Germany) and an MSc in geographic information science from the University of London (UK). She is an assistant professor at the Faculty ITC of UT. Her main areas of research are urban remote sensing, analysing the urban form and dynamics and spatial statistics. (read more)
2019-09-26 10:04:05

3D Modelling for Property Valuation in China

A High-resolution Remote Sensing-based Approach
Rapid urban development in China has transformed the cityscapes, with a dramatic increase in high-rise buildings. However, the current 2D property valuation methods neglect the vertical dimension, even though that aspect contains significant indicators that impact property value – such as types of views, scope of vision and daylight. 3D modelling of geographical data can help to change this in high-rise and highly-density areas, going beyond 2D to enable identification of complex property characteristics in the vertical dimension too. This article presents research to explore a 3D modelling approach using remote sensing data for more precise property valuation. The accelerating... (read more)
2019-09-26 10:00:54

When Photogrammetry Meets Lidar: Towards the Airborne Hybrid Era

Combining Airborne Camera and Lidar Sensors to Take the Mapping Sector a Step Forwards
The airborne market for area-wide 3D data acquisition is experiencing a noticeable trend towards a hybrid mapping concept. In the near future, most airborne data collection will increasingly be performed by a combination of active and passive sensors. There are two main reasons for this. Firstly, collecting all relevant data while flying is an efficient and cost-effective solution, even when the flying restrictions and regulations are factored in. Secondly, exploiting the advantages of both light detection and ranging (Lidar) and dense image matching (DIM) point clouds will improve the quality of the final geospatial products. This article reports on the... (read more)
2019-09-13 09:56:38

Against the ‘How to Lie with Data’ Classification

New Task-oriented Methods for Designing Choropleth Maps
Choropleth maps are widely used for presenting population density, social index or other normalized statistical values related to spatial units. One of the ‘white spots’ on the research and development ‘map’ of cartography is that conventional methods for creating choropleth maps are data driven and may lose extreme values or small clusters of extreme values (hot spots) due to an unfavourable setting of class breaks. In this article, the author presents a new method and evaluation measures which enable better preservation of important spatial characteristics. The methods and software implementation result from the aChor project. The choropleth map is a... (read more)
2019-09-12 10:00:18

Teledyne Optech to Preview New Compact Airborne and Mobile Lidar Solutions

Teledyne Optech is poised to make an impact at Intergeo during its 45th Anniversary this year with new technologies in airborne, mobile and compact Lidar solutions. The company invites guests to visit its exhibit to learn about new solutions designed to take survey and mapping operations to the next level of precision, accuracy and efficiency. On display at in hall 3 (booth B3.042) Teledyne Optech will feature its CL-360, a new addition to its Compact Lidar suite of products enabling OEM hardware manufacturers and integrators to develop the next-generation of best-in-class UAV, mobile, and terrestrial scanning solutions for a wide variety of applications. Also on... (read more)
2019-09-12 01:06:29

Big Data, Rising Tides

How Advances in Free Remote Sensing Technology Can Help Cities to Prepare for Climate Change
In view of the increased vulnerability of cities to climate and disaster risks, accurate and up-to-date geospatial data is fundamental for a more resilient urban planning approach. Publicly available geospatial datasets are increasingly becoming the foundation stone for more informed urban planning decision-making and better investment prioritization. Today, satellite data can help cities to better prepare for natural disasters such as urban flooding and make more informed investment decisions. For many residents of Kampala, the capital of Uganda, the start of rainy season brings a sense of apprehension nowadays. Originally built on seven hills surrounded by wetlands, the city’s rapid... (read more)
2019-09-03 02:14:31

3D is the New Normal in Switzerland

Mapless Topographic Products Are the Future
Switzerland is unique in that it is still the only country to have switched entirely to 3D for its national object-oriented topographic database. As users increasingly discover the advantages in terms of new workflows and services, nobody regrets leaving the 2D era behind. According to Swisstopo, the extra dimension creates no extra costs – only extra benefits. It took the Swiss Federal Office of Topography (Swisstopo) ten years to build an object-oriented topographic database in 3D, with the last objects having been completed in 2019. “Nothing is excluded now; everything you can think of is available in 3D. Even the... (read more)
2019-08-29 09:42:38
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