Pseudo-hologrammetry is a fancy name for a very simple effect, in which a two-dimensional image is given a hologram-like appearance. It is a quick, pain-free way to add some life to flat artwork. I came up with this recipe when charged with the task of creating a full minute of interesting video using only twelve still images with just one day of production time available.
Strictly speaking, this recipe does not reproduce the look of a classic flat hologram with its distinctive chromatic scintillation as much as give the impression of flat artwork forcibly "dimensionalised" and projected through some yet to be invented technology, like a very simplified version of the effect seen in the movie Minority Report (2002) in which we see flat video footage interpolated into semi-dimensionality and projected into 3D space by an array of tiny light-guns.
The geeks at ILM spent a lot of money and sweat figuring out how to achieve that cool effect. In contrast, the trick described below is cheap and simple. Ready? Let's go...