Are self-driving cars fool proof? Apparently not from laser attacks, according to this new study by researchers from the University of Florida, the University of Michigan and Japan’s University of Electro-Communications. Laser attacks could be used to trick LiDAR on these vehicles, since it basically creates fake reflections to scramble the sensor.
Put simply, someone can mimic the LiDAR reflections with a laser to make the sensor discount other reflections that are coming in from genuine obstacles. This means that the LiDAR is still receiving genuine data from the obstacle, but it’s being automatically discarded because the fake reflections are the only one perceived by the sensor. The only requirement is that the laser has to be perfectly synchronized with the LiDAR sensor and moving vehicles must be precisely tracked to keep it pointing in the right direction.
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It’s primarily a matter of synchronization of the laser with the lidar device. The information you need is usually publicly available from the manufacturer,” said S. Hrushikesh Bhupathiraj, one of the lead authors of the study and a UF doctoral student.
