Mapping Rio de Janeiro’s Christ the Redeemer in High-Definition

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This post is the latest in the Drones and Small Unmanned Aerial Systems Special Series, which profiles interesting information, thoughts and research into using drones, UAVs or remotely piloted vehicles for journalism and photography, that Kike learns about during his travels.

3D UAV mapping technology is delving into uncharted territory, finding applications for the union of UAV hardware and image processing software not before used. Mapping the Christ the Redeemer statue in Rio de Janeiro is one of those applications, as an accurate 3D reconstruction of the icon has never been produced. And for good reason: the 38 meter statue is perched on a narrow terrace atop a 700 meter peak, its location exposing it to high winds and irregular cloud cover.

The NEXT lab of PUC University in Rio de Janeiro had long dreamt of creating an accurate 3D model of the Christ statue, but ran into limitations using LiDAR technology. There were too many facades and high angles to scan the whole statue, not to mention the enormous cost of laser scanning and lack of a highly reliable aerial method with the hardware needed to acquire the data.

So when the lab saw that Pix4D, a —> Read More Here


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