[Adam]

Given the fact that the officials at that level are evaluated with video, and every call and non-call is graded, I'd say your homecourt advantage has more to do with how teams play rather than influence on the officials.

Teams play more agressively, drive to the hoop more, take more risks on defense, and can do these things for longer periods of time when the crowd is supporting them. These things lead to things like foul counts, turnovers, etc. Also, home teams tend to win, which tends to create more fouls for the losing team trying to catch up (chicken-egg).