Lists

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.

20 comments:

  1. Now it is easier to understand

    ReplyDelete
  2. The dark noise for a Germany guy should be low ! :)

    -yang ni

    ReplyDelete
  3. Really really nice real-world comparison.
    Interesting 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...?

    ReplyDelete
    Replies
    1. Errata - I am reffering above to the presentation and not to the white paper on this page. Although itself it is very good also.
      Mea culpa.

      Delete
  4. never seen a better explanation!

    ReplyDelete
  5. I'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.

    ReplyDelete
  6. Funny.

    What's the similarity between a good beer and a good pinned photodiode: both must be fully depleted after transfer!

    ReplyDelete
    Replies
    1. Guy, it's more difficult to deplet the beer than the pinned photodiode :)
      -yang ni

      Delete
    2. 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.

      Delete
    3. Yeah but don't drink to much or you will get blooming.

      CB

      Delete
    4. Both have a part pinned to the ground :)

      Delete
  7. Really? 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!

    ReplyDelete
    Replies
    1. 200 would mean around 8 f/stops ;) Dunno how that can be converted to beer units...

      Delete
  8. Well, is that true?
    Let me validate this for a while. :-)

    Please also explain:
    - PRNU
    - Shading correction
    - Frame Rate
    - Exposure time
    - Image Lag
    - Blooming

    :-)

    ILE

    ReplyDelete
    Replies
    1. I think frame rate is pretty easy to explain with a beer but lifetime in this case will be another issue.

      Delete
  9. Let's hope no one starts describing leakage currents.

    ReplyDelete
  10. HaHaHa, nice one last ano.

    CB

    ReplyDelete
  11. hahaha You'r genius !!!!!!!!!!!

    ReplyDelete
  12. How does this apply to bong hits?

    ReplyDelete

All comments are moderated to avoid spam and personal attacks.