5 ms·
I'd really like to know that too. Also, are they collecting data themselves? If not, where are they getting it from?
by andreadallera 15y ago
I'd really like to know that too. Also, are they collecting data themselves? If not, where are they getting it from?
- Spearchucker 15y agoIt's based on a virtual cityscape, which is painted with images taken much like StreeView's. The 3D models are built with data from Navteq's Journey View system, using lidar (http://en.wikipedia.org/wiki/LIDAR http://en.wikipedia.org/wiki/LIDAR). Photos are then stitched and rendered onto the 3D models.
- megrimlock 15y agoThanks for the details! This technique works surprisingly well. (One of the artifacts I was able to find is at the base of the Bay Bridge in SF's SOMA -- there's a vertical wall that has the street surface projected up along it rather than an actual hole underneath the bridge. That does seem like a challenging case for airborne lidar + stitching.) Another impressive spot is the top of the Stratosphere Tower in Las Vegas -- it manages to capture the spike at the top fairly well. It'd be interesting to know how much hand-editing they did for sites of interest like that, and how they represent hand-edits in a way that can be re-applied when new lidar datasets come in.