Eric Fossum

Thank you Ken for your clear answers and discussion. It all makes sense. One of the reasons I, like many others, participate here is that I often learn new things outside my very narrow area of ...

Now that I see I answered the wrong question, I have a question of my own.  It seems the passband filter is buried inside the camera instead of being screwed on to the outside of the lens.  Why is ...

Well, not knowing how this conversion was done, I will guess the RGB and any IR cutoff filters have been removed. This means the sensor is now responsive according to the normal IR responsivity of ...

"software root" -- good one!

CMS is correlated multiple sampling. Sort of like Fowler sampling but not quite. We can probably credit Shoji Kawahito with CMS. Conveniently and coincidentally my PhD student Wei Deng very ...

Well, there is hot and then there is too hot.  I don't know if continuous readout steady-state temperature falls into the first or second category. And I suppose there are many mitigation ...

For single-slope ADCs (SS-ADCs), 10 bit resolution requires 2^10 comparisons while the reference voltage is being ramped. 14b resolution requires 2^14 comparisons, or 16x more. So yes, the power ...

I thought you meant as part of the ADC.  For example, like in this patent . As Sympa mentioned, digital CDS and CMS becomes problematic too.  Good catch.

I am not aware of any image sensors with on-chip ADC that use log or square-root transformations/compressions. Certainly well known that it could be done, but it does make color image signal ...

Astrozoid: "And, please, explain it to me like I'm 5 years old, because that's how old I am emotionally." QED.

.... hi Jerry, there are many folks here who have explained over the years answers to most or all of your questions.  But, dude, you can't say you don't care about the details and then ask these ...

Asking about S/N or DR without discussing pixel pitch is kind of silly. It is too bad you don't care about pixel count and readout speed (which are related). It would be quite the challenge to get ...

So, our work at JPL in the 90's on CMOS image sensor (active pixel with intra pixel charge transfer, to be exact) and column-parallel on-chip ADC led to the spinoff of Photobit. Photobit was ...

beats me. Maybe. I think avg QE is still different for each band. Maybe the CCM is unity.... Maybe, seems likely. I think the trend is for more but smaller pixels, even for big glass cameras. NIR ...

Even in the 90's this was recognized as the holy grail.  One of my team members at JPL spent 6+ months trying to find a solution involving microstructures like diffractive optics, etc. There was ...

It seems amazing, and indeed the holy grail if true.  I guess it only works for tiny pixels which is fine by me.  The paper is a bit short on details but I know Peter Catrysse s and Shanhui Fan is ...

Thanks for posting. I think it is cool. Hard to show what a holographic display looks like when viewed using a 2D camera image on a 2D display! -EF

I think when people can cloak themselves in anonymity, some feel it is ok to speak more harshly than they would otherwise.  It is a typical forum problem and annoying! And then there are some that ...

Thanks Joofa. At that time, for me it was a very helpful visualization of QIS image formation by digital integration of frames. I still appreciate your efforts creating that!

hi Jack, I think the apples to apples comparison would be to take a "normal" CMOS image sensor (CIS) and shoot under the same lighting conditions for the same effective exposure time. I imagine, ...