While we are at Basler, it recently published a whitepaper on "Are More Pixels Better?" in security cameras.
Tuesday, March 27, 2012
Sensors and Beer
Joachim Linkemann from Basler AG, Germany came with a nice presentation comparing pixels with a glass of beer:
While we are at Basler, it recently published a whitepaper on "Are More Pixels Better?" in security cameras.
While we are at Basler, it recently published a whitepaper on "Are More Pixels Better?" in security cameras.
Subscribe to:
Post Comments (Atom)
Now it is easier to understand
ReplyDeleteThe dark noise for a Germany guy should be low ! :)
ReplyDelete-yang ni
Really really nice real-world comparison.
ReplyDeleteInteresting whitepaper also.
On the funny side, from the PDF you can find here - http://image-sensors-world.blogspot.com/2012/03/micron-italy-presentation-on-small.html - i quote 'Smaller Pixel Size = Lower SNR', while in the white paper above you can read - and really well supported by theory - that 'Full-Well capacity (saturation capacity, resp.) is lower for smaller pixels. Therefore the max SNR is not as good as on a larger pixel'.
Although I understand the need for smaller pixels for industrial and medical applications, coupled with >exquisite< optical systems, IMO going under 1um pixels is too much, even for the visual domain. You're reaching the upper limits of the visual wavelengths.
Is that a problem or not, I ask...?
Errata - I am reffering above to the presentation and not to the white paper on this page. Although itself it is very good also.
DeleteMea culpa.
brilliant
ReplyDeletenever seen a better explanation!
ReplyDeleteI'm having my breakfast as I read this, but I have a sudden urge to dump my coffee and grab a cold one out of the frig.
ReplyDeleteFunny.
ReplyDeleteWhat's the similarity between a good beer and a good pinned photodiode: both must be fully depleted after transfer!
Guy, it's more difficult to deplet the beer than the pinned photodiode :)
Delete-yang ni
Oh, I don't know about that... It's only 10am, and from the way the day is going so far, I could fully deplete quite a large array.
DeleteYeah but don't drink to much or you will get blooming.
DeleteCB
Both have a part pinned to the ground :)
DeleteReally? a dynamic range of 200? All this proves is that too much beer affected the math skills of the people making the presentation, an experiment that I have run many times!
ReplyDelete200 would mean around 8 f/stops ;) Dunno how that can be converted to beer units...
DeleteWell, is that true?
ReplyDeleteLet me validate this for a while. :-)
Please also explain:
- PRNU
- Shading correction
- Frame Rate
- Exposure time
- Image Lag
- Blooming
:-)
ILE
I think frame rate is pretty easy to explain with a beer but lifetime in this case will be another issue.
DeleteLet's hope no one starts describing leakage currents.
ReplyDeleteHaHaHa, nice one last ano.
ReplyDeleteCB
hahaha You'r genius !!!!!!!!!!!
ReplyDeleteHow does this apply to bong hits?
ReplyDelete