![]() ![]() That spacial recognition is what helps Google patch all of its images together and give them a 3D feel. These are used for recording the actual dimensions of the space being photographed, for example the distance between the camera and the facades of the buildings. The laser range scanners measure up to 50 metres in the front of the vehicle with a 180 degree range. A third SICK LMS291 profiler measures the road surface in front of the vehicle. Once the pose is computed by Ceres, Google aligns or snaps the pose to a map of the road (or path) network in Google Maps.Ĭeres replaced the Google Pose Optimizer (GPO) incorrectly referenced in a previous iteration of this post.Īs mentioned in my history of the Street View camera, even the prototype Street View cars had side and front-facing laser scanners installed to measure depth.Īll Street View cameras since the R5 (2008) feature a pair of $6000 Sick AG LMS 291 laser profilers that are attached to the mast and continually measure a series of range or elevation profiles on either side of the mapping vehicle.
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