Ludvig Ericson
Ludvig Ericson
By the way, the difference in signal quality from the flow sensors is enormous for us with this whitening turned on. Might be hardware, of course.
You're right that AGC should probably not be on, empirically though it seems to be better. I'll look into it again tomorrow. - Ludvig > On 17 Jun 2017, at...
The noise is about the same with and without AGC, so I removed it as per your recommendation @jgoppert -- one less moving part.
I primarily tested indoors. Disabling AGC shouldn't affect the signal quality however, since the aim of the AGC mechanism is the same as the whitening operation. I'll try it with...
Seems to work well in sunlight as well actually. How low light are low light conditions?
Great feedback, @jlecoeur, thanks. Indeed it does have issues with high-variance areas; in particular multi-modalities such as the one you presented.
I think it won't be worth it, @jlecoeur -- what we could do though is some kind of naive outlier rejection. This would mean half the image becomes either completely...
@jgoppert The gain mechanism in the camera firmware is just a multiplier AFAICT.
@jgoppert Hm ok, so you're saying AGC + whitening would make sense then?
@jlecoeur Tried binning, not very surprisingly it turns out to give rise to flickering as the mode changes between the bins. Three bins was pretty good though.