Self-checking a car interior between rides should be one of the easiest computer vision tasks imaginable: fixed camera angles, fixed scene and any differences i

Self-checking a car interior between rides should be one of the easiest computer vision tasks imaginable: fixed camera angles, fixed scene and any differences in outside lighting could be drowned with a strong internal flash (which could even double as a minor privacy improvement if the cameras were tailored to match the light intensity of that flash to be practically blind without).