Rousse's work, from the 1990s to today, generally appears at first glance to be photos of desolate or abandoned spaces (buildings, rooms, parking garages or streetscapes) often on their way to the wrecking ball, on which the artist has superimposed precise geometrical shapes or squiggly graffiti.
However, this is an intended illusion: what Rousse does is to paint these designs onto the abandoned spaces before taking the photo, correcting for such things as the slope of floors or the interruption of beams, so that the painted designs come together to produce the illusion of a simple, flat design floating on the surface of the photo.
This type of work is referred to as anamorphic art. It changes but is only viewable in its intended focus from one precise viewpoint. The projects involve not only painting, but also some construction of sometimes major proportion! Curved walls, angles of light all play into the finished project. - (from Wikipedia.com)
Rodrigo Valenzuela showed me this artist & his work a couple of years ago. Thanks Rodster.