Why aren't continuous models being used to represent the number of particles hitting a sensor? For example, why not use an exponential distribution of sorts? Or some continuous-time Markov chain to represent the photons hitting a sensor - would make more sense considering we work in real-time.
han20192019
I understand that in this situation, SNR is the square root of #photons. But I wonder does larger SNR reflect better quality of photo or smaller SNR reflect better quality(less noise)? I think it's larger SNR, since more photons will make the photo less noisy.
ioannis-vm
Aren't the examples here contradicting the example on this slide?
catherinecang
I'm still not super sure -- does increasing the ISO increase or decrease the SNR? (i.e. do we count the magnification from the ISO as more photons?)
Why aren't continuous models being used to represent the number of particles hitting a sensor? For example, why not use an exponential distribution of sorts? Or some continuous-time Markov chain to represent the photons hitting a sensor - would make more sense considering we work in real-time.
I understand that in this situation, SNR is the square root of #photons. But I wonder does larger SNR reflect better quality of photo or smaller SNR reflect better quality(less noise)? I think it's larger SNR, since more photons will make the photo less noisy.
Aren't the examples here contradicting the example on this slide?
I'm still not super sure -- does increasing the ISO increase or decrease the SNR? (i.e. do we count the magnification from the ISO as more photons?)