I would guess the problem is easier to solve in the more controlled lighting below that truck than in the more varying daylight. It also needs lots of lighting

I would guess the problem is easier to solve in the more controlled lighting below that truck than in the more varying daylight. It also needs lots of lighting (https://youtube.com/watch?v=9H_JUvXyL74 https://youtube.com/watch?v=9H_JUvXyL74) That roof also may protect the electronics better from rain. Finally, I can’t find details on https://h2lrobotics.com/?page_id=254&lang=en https://h2lrobotics.com/?page_id=254&lang=en but I doubt it is “the camera”. There probably is more than one.