3 ms·
Can't the LIDAR eventually be made to use IR wavelengths and thus synthesize 3-d images through fog? also, the question of seeing the fog is more nuanced that
by chillingeffect 9y ago
Can't the LIDAR eventually be made to use IR wavelengths and thus synthesize 3-d images through fog?
also, the question of seeing the fog is more nuanced that can see/can't see:
"Just like it is impossible to give a simple answer
to the question “How far can I see with a thermal
imaging camera?”, it is equally impossible to say
how much shorter the range will be in foggy or
rainy conditions. This is not only dependant on the
atmospheric conditions and the type of fog but it is
also dependent on the IR camera used and on the
properties of the target (size, temperature difference
of the target and background, etc)" [http://www.flir.com/uploadedFiles/FOG_techNote_LR.pdf http://www.flir.com/uploadedFiles/FOG_techNote_LR.pdf]
- ATsch 9y agoIR LIDAR is already widely used for terrestrial mapping and meteorology. I think if that was the solution it would have already been tried.
- _abak_ 9y agoLIDAR typically uses lasers in the so-called eye-safe range (around 1.4 micro meters). This range is precisely around the absorption peak of water so that LIDAR cannot damage the eyes of pedestrians and other by-standers. By construction, LIDAR sucks in the fog, rain, snow, etc.
- katastic 9y agoBut it has no problems with night. So it has some great uses.