Implementation of a wide-angle lens distortion correction algorithm on the cell broadband engine

摘要

Wide-angle lenses are often used in scientific or virtual reality applications to enlarge the field of view of a conventional camera. Wide-angle lens distortion correction is an image warping application which transforms the distorted images back to the natural-looking, central perspective space. This application is characterized by a non-linear streaming memory access pattern that makes main memory bandwidth a key performance limiter.