I naively thought modern systems used a battery of lidar (with different wavelengths to provide redundancy, like visible+ir+uv) to create a precise 3d map of th

I naively thought modern systems used a battery of lidar (with different wavelengths to provide redundancy, like visible+ir+uv) to create a precise 3d map of the objects around the car. Coupled with cameras for visual awareness this seems like the only sane system.