Gemba Walks are often done in a layered manner. At the lowest layer, the Department Manager does a daily walk, and an hourly associate presents the data. At these daily walks, it is common for the local maintenance mechanics, engineers, and QC technicians to participate.
LIDAR is similar to the radar commonly used to track everything from airplanes in flight to thunderstorms. But instead of bouncing radio waves off its target, LIDAR uses short pulses of laser light. Some of that light reflects off of tiny particles in the atmosphere and back to a telescope aligned with the laser.
I do know that LIDAR equipment can be very expensive. I know one man in my area who actually has a Leica Geosystems camera/LIDAR package in his Cessna 206. The camera/LIDAR unit alone cost $1.8 million. Soooo...my guess is that getting a LIDAR unit for a drone isn't going to be a cheap endeavor. The research I have been doing all points to sites like Drone Mapper for aerial imagery and elevation analysis of UAV/drone imagery.