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Taking pictures of objects to make a physical copy

A group of researchers from the Swiss Federal Institute of Technology in Zurich have created an app that transforms a smartphone into a 3D scanner. All you need to do is hold your smartphone facing any object whatsoever and move around it. The app will then create a 3D image, adding more details as the smartphone moves around the object and records different angles. The app reconstructs a 3D representation based on a very high number of photos taken from different viewpoints by the phone’s in-built camera. The app also uses the smartphone’s accelerometer to determine the angle and position of the photos, or the scaling required.

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