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I've had a bit of a play around with the Topaz Labs DeNoise and Sharpening. I agree with Marc, AI does get thrown around a lot as it is the current buzz word. If you write a deconvolution algorithm that measures the average PSF and then runs the deconvolution a number of times looking for specific artefacts and tunes the variables until the the best fit (least artefacts) out come happens, this is now called AI.
I personally have never been a fan of the appearance of the noise reduction from Topaz DeNoise. Even when run at low levels it has a very artificial and unique look that I personally don't like in astro.
I gave the Sharpening a go last night and found that on some images it does improve sharpness a bit but on others it did a lot more damage than good. One thing I did notice is that it makes small stars look like it has been taken under 0.2" seeing! Larger ones not so much and the bigger they are the less "shrinkage" they have.
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