central projection

In optics, a central projection is a method of mapping points from one surface to another using lines that pass through a focal point. This creates an image that appears in perspective, similar to how the human eye or a camera captures a scene. The concept originates from geometry and is fundamental to projective geometry, which studies the properties of figures preserved under such projections. This mathematical framework helps understand how shapes are transformed when projected, with applications ranging from art and architecture to understanding conic sections.123