Over at opensource.com, Luis Ibáñez writes
about using open source tools in conjunction with Google's Project Tango
, which is a device that tracks its 3D position and orientation while also mapping its surroundings. "Thanks to these tools being open source, it was possible in a few days to create a PCL [Point Cloud Library] plugin for Paraview, download data from the device using the adb tool of the Android SDK, and load the cloud data into ParaView for analysis and visualization.
Since the data is acquired by the device in a continuous manner, the output is really 3D + time in nature. That is, as a sequence of cloud points, each one of which is time stamped to a particular time and has a camera position and orientation associated with it. This aggregate data is managed in ParaView as a time series [requires login], and it can be consolidated to reconstruct the 3D scene around the device.
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