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How to create a virtual world without even trying

Contributed by: youris.com EEIG

The sensors we carry every day will design future digital worlds for our virtual selves
How to create a virtual world without even trying
Have you ever used Waze, the famous crowdsourced navigation app? When driving down a road that the app does not recognise, you are teaching it that a new street must be added. In a similar way, the sensors we carry every day in our smartphones and fitness gadgets could not just map the world but be used for creating a virtual copy, quicker and cheaper than anything we have today.

The new paradigm in effortlessly creating virtual worlds is enabled by the work of the European project Harvest4d. The concept of ‘incidental data capture’ has led to a new method for acquiring 3D images that can produce a 4D model. Including the detection of changes occurring over time, it will be possible to navigate these 3D models as well as visualise their evolution.

This proof-of-concept project has completed two main prototype implementations to validate its approach: data processing and visualisation. The Multi-View Environment (MVE) prototype has been used to reconstruct undistorted images and depth maps derived from incidental data acquisition. On the other hand, the graphical user interface of MVE, named Ultimate Multi-View Environment (UMVE), can visualise different types of data sets in a user-friendly manner.

The project team, coordinated by Technische Universität Wien in Vienna, Austria, has developed different algorithms to demonstrate that this new approach can be used in different ways. For instance, an algorithm has been developed for material classification in incidentally captured data sets, based on the richness of appearance variation found in real-world data under natural illumination. Another algorithm aligns sequences from hundreds of range maps, where object locations are calculated using the distance from a single point, in a few minutes and with minimal error.

According to researchers, one of the first implementations of this new approach could be to help preserve European cultural heritage. The millions of photos taken by tourists could digitise monuments and historical towns, creating 4D models that show their changes in time. The same could be done with archaeological sites, showing how they change during excavations. Researchers say that these implementations could become reality by 2021.

The €3 million Harvest4d project involved six partners and was funded by the EU Horizon 2020 Future and Emerging Technologies (FET) programme. More than 80 scientific publications have been produced by the team. See this euronews video and project website for more information.

http://www.euronews.com/2016/06/06/creating-3d-models-with-your-mobile-phone

https://harvest4d.org/

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