Fig. 2
From: The illusion of absence: how a common feature of magic shows can explain a class of road accidents
An example of a visual illusion that can be explained based on the principle of generic views. The three panels show the same four cards photographed from three different viewpoints. The picture card is in the front in the bottom row, and in the back in the top row, but in panel (a), it appears to be in front also in the top row. Adapted from Adelbert Ames’ “overlay demonstration” (Ittelson, 1952)