Dutchy Ron schreef op 25 april 2017 10:59:
The release makes a big deal out of the fact that Cadillac has "
the first assisted driving technology that will use precision lidar map data in addition to real-time cameras, sensors and GPS."
spectrum.ieee.org/cars-that-think/tra...Data from on-board cameras, GPS and radar sensors is a key component of most assisted driving systems. Super Cruise™ adds to this formula using advanced laser technology in development for future autonomous vehicles: a LiDAR-scanned map database. The precision LiDAR map was developed specifically for Super Cruise™.
Engineers mapped every mile of limited-access highway in the U.S. and Canada, providing detailed information to the car about the road ahead. This pairs with improved accuracy GPS, measuring real-time location in a fashion four to eight times more precise than traditional GPS.
Sounds cool, but the CT6 doesn't actually have any lidar sensors on it (just cameras and radar), meaning that it can't really do any of the things that make lidar useful for AVs, like localization, obstacle detection, or object recognition. Instead, the lidar is used to make a sort of enhanced GPS map, providing the vehicle with some very basic information about the road ahead, like grade and curvature. I'm not sure how much information that the lidar map gets you that a GPS-based map doesn't, but the fact that Cadillac has collected (and, we assume, is continuing to collect) lidar maps like these will certainly come in handy eventually.