Hi trying to find out some more about the vison detection system in the new inspire 2 & also the mavic & phantom 4 pro.

How does it work? What are it's limitations? Can in work in fog / low light / night time? Or just daytime?

Thanks
dopeytree

Only work with at least 15Lux of light

tcchow Posted at 2016-12-8 07:15
Only work with at least 15Lux of light

Sweet cheers. This pretty much means no it won't work in fog & or at night.
It appears the avoidance sensors are actually just cameras but in stereo so they like the human eye can see depth.

For some context on Lux's see this copied from wikipedia:

Daylight intensity in different conditions[edit]
Illuminance        Example
120,000 lux        Brightest sunlight
111,000 lux        Bright sunlight
20,000 lux                Shade illuminated by entire clear blue sky, midday
1,000 - 2,000 lux        Typical overcast day, midday
<200 lux        Extreme of darkest storm clouds, midday
400 lux        Sunrise or sunset on a clear day (ambient illumination).
40 lux        Fully overcast, sunset/sunrise
<1 lux        Extreme of darkest storm clouds, sunset/rise

For comparison, nighttime illuminance levels are:

Illuminance        Example
<1 lux        Moonlight[3]
0.25 lux        Full Moon on a clear night[4][5]
0.01 lux        Quarter Moon
0.002 lux        Starlight clear moonless night sky including airglow[4]
0.0002 lux        Starlight clear moonless night sky excluding airglow[4]
0.00014 lux        Venus at brightest[4]
0.0001 lux        Starlight overcast moonless night sky[4]