Understanding the applications and benefits of ground penetrating radar

The ground penetrating radar market in South Africa is gaining popularity. This paper will look at what it is, explore its complementing technologies, where it is used, some examples and case studies from around the world and what is happening in this market in South Africa. Group penetrating radar (GPR) is a non-destructive geophysical method […]

Surveying remote areas with precision for bird conservation effort

How a new approach to precise positioning is helping solve a century-old problem on an isolated island. John Houston is not a surveyor. He’d be the first to tell you that. He’s not a keen traveller, either. So what was he doing on a speck of an island in the South Atlantic Ocean, knee deep […]

Machine learning for road width capture from aerial photography

In this proof of concept, the use of feature extraction through machine learning using convolutional neural networks to classify aerial photography pixels as either road or non-road, and produce a basis for a polygon feature representing the road surface (and therefore road width) is demonstrated. Aurecon received a brief from a client to build a […]

Creating a heritage map with strong data governance principles

A healthy, dynamic city needs to strike a balance between welcoming development and economic growth while retaining its cultural significance. The City of Johannesburg (CoJ) has done this through its Heritage portal, which is underpinned by strong data governance principles. The City of Johannesburg’s 120-year history, growing from a mining camp to metropolis, has left […]

Mapping the global human footprint

The number of people flocking to cities in search of employment and better prospects is growing at an unprecedented rate. By 2050, the global population is estimated to reach nine billion, 70% of which will be living in urban areas. The World Settlement Footprint 2015 (WSF-2015) is the first map, using mass collections of radar […]

Census geography: What constitutes the ideal output area for South Africa?

A specific designed output (spatial) layer to disseminate census data is aimed at enabling governmental departments, municipalities, various planners and researchers, with the smallest geographic areas that will be linked to census data to facilitate better and more detailed planning and decision-making processes. By not using the census operational layer, i.e. the Enumeration Areas (EAs), […]

A spatio-temporal approach to underground mine health and safety monitoring

Health and safety of employees in their work environment, particularly in underground mines which are deemed one of the most dangerous work places in the world, is of critical importance. This article highlights a prototype application that integrates legacy underground mine systems with a geographic information system (GIS) for the analysis of streaming digital sensor […]

Artificial intelligence benefits for geospatial-focused drone businesses

Geospatial insights are in high demand and automating the feature extraction process is key to scaling up your aerial mapping services. Along with the hardware and software sectors, the drone services market is the largest segment in the commercial drone industry with the strongest expansion. According to the market research report “Global Drone Service Market […]

3D laser scanning workflow overview for newbies

This article looks at  point cloud basics and a workflow which will enable capturing and processing of a 3D laser scan. Laser scanners collect surface data about an object or structure by beaming a laser repeatedly off its surface and plotting points (equivalent to each beam that is emitted) into what is known as a […]

Developing an integrated data service ecosystem

For the past year, SAEON’s uLwazi Node has been developing a data services ecosystem and websites for climate change adaptation for the Department of Environmental Affairs (DEA). Each service serves as an individual component for a different aspect of climate adaptation, including adaptation monitoring and evaluation, climate change response, and detailing disaster impact along with […]