Color Night Vision (2016) [video]
It would be interesting to see how this compares to theoretical limits.  At a given brightness and collecting area, you get (with lossless optics) a certain number of photons per pixel per unit time.  Unless your sensor does extraordinarily unlikely quantum stuff, at best it counts photons with some noise.  The unavoidable limit is "shot noise": the number of photons in a given time is Poisson distributed, giving you noise according to the Poisson distribution.At nonzero temperature, you have the further problem that your sensor has thermally excited electrons, which aren't necessarily a problem AFAIK.  More importantly, the sensor glows.  If the sensor registers many of its own emitted photons, you get lots of thermal noise.Good low noise amplifiers for RF that are well matched to their antennas can avoid amplifying their own thermal emissions.  I don't know how well CCDs can do at this.Given that this is a military device, I'd assume the sensor is chilled.