LIDAR is used in addition to 2D camera images. LIDAR is used to build a depth map and do image segmentation and works in low light and low contrast environments

LIDAR is used in addition to 2D camera images. LIDAR is used to build a depth map and do image segmentation and works in low light and low contrast environments. Single cameras (even stereo cameras) require a lot more assumptions about contrast and environment lighting to do image segmentation and depth maps. They're rarely as accurate as LIDAR and often far worse. Depth maps and image segmentation are the building blocks of object identification. You can try to AI your way into those with a single camera but it'll be less accurate and more error prone.