Except you obviously missed the section labeled "Features" in which it says Autonomous Detection/Tracking/Targeting and Manual/Autonomous Firing with Safety
I'm not seeing that in the article or in the poster. The DODAAM website is slashdotted right now, but if it says that I'd be suspecting a bad translation. There's nothing in the feature set of this piece of hardware that supports automatic tracking or autonomous firing. Detecting a human size target at some distance only means the optics and camera has a certain minimum resolution.
I've actually done some work on integrating a similar US-designed device onto a semi-autonomous vehicle, so I can read the DODAAM poster with some background.