This article provides a quantitative analysis of the relationship between viewing distance and perceived depth on any 3D lenticular printing project.
Lenticular printing is a technology in which a lenticular sheet is used to let different images be seen by the left and right eyes so that the illusion of depth becomes possible on a 2D image.
The theory is simple and it is based on the principle of binocular disparity. To understand this, one can do a simple experiment by looking at an object using the left and the right eye separately.
You will find that the relative position of an object seen from the left and the right eye is slightly different. By emulating this binocular disparity using a lenticular sheet, one can see an illusive3D effect come alive.