A modern CMOS image sensor uses a photodiode that works as a current source and is integrated with a gate to determine light intensity. This is not exactly a photoresistor, but it is close enough for the discussion here. Electrical resistance is not a "digital" quantity as this article says. It is a phenomenon that must be measured by analog means and converted to digital. This necessarily involves an integration step that basically amounts to "filling up". You can bring this time to arbitrarily low (and that is basically what HDR exploits), but then you have to contend with noise.
I fail to see how the proposal here changes the readout of a photo sensor in the physical world and also addresses the fundamental issue of noise.
This is written from the perspective of math and computer science, but that doesn't help us in the physical world where hardware designers have to live.
A modern CMOS image sensor uses a photodiode that works as a current source and is integrated with a gate to determine light intensity. This is not exactly a photoresistor, but it is close enough for the discussion here. Electrical resistance is not a "digital" quantity as this article says. It is a phenomenon that must be measured by analog means and converted to digital. This necessarily involves an integration step that basically amounts to "filling up". You can bring this time to arbitrarily low (and that is basically what HDR exploits), but then you have to contend with noise.
I fail to see how the proposal here changes the readout of a photo sensor in the physical world and also addresses the fundamental issue of noise. This is written from the perspective of math and computer science, but that doesn't help us in the physical world where hardware designers have to live.