Using fractal geometry for image compression

Summary form only given. The authors present methods of fractal geometry powerful and general enough to encode a wide variety of images. They consider probabilistic finite generators, the basic idea being the interpretation of strings over some alphabet as rational coordinates and languages and relations as sets of points (images). Encoding is conceptually simple, and allows for an efficient implementation using quadtrees. Probabilistic mutually recursive function systems are defined over n variables (images) related in a mutually recursive fashion as unions under affine transformations