Bruno Catalano is a French sculptor who is famous for his incomplete body statues.

Bruno Catalano is a French sculptor who is famous for his incomplete body statues. When looking at two-dimensional images of these statues (Figure 1), something remarkable hap- pens. The background that is seen through the gap in the body occasionally seems percep- tually pushed to the front, such that it appears as a part of the body, or even as an occluding structure that conceals parts of a complete body from sight. In Figure 1, a few images are shown of Catalano’s statues. The depth confusion, however, is rather ambiguous and unstable. When...