Brian De Palma is one of those directors who have their own special well recognizable style.
And exactly this style he realizes using certain techniques, one of which is "view from above".
This method can be seen, if not in all his movies, then in the vast majority. "View from above" is a shot taken from the top distant point, which shows the specific details of the current event. Moreover "view from above" is a method of certain removal from the space of the movie and the voyeurism form that is one of the basic components of such art form as cinematography.