Gradient based multifocus video image fusion

Abstract

Optics of lenses with a high degree of magnification suffer from the problem of a limited depth of field. The larger the focal length and magnification of the lens the smaller the depth of field becomes. As a result, fewer objects in the image are in focus. Multifocus digital image fusion attempts to increase the apparent depth of field through the fusion of object within several different fields of focus. In this work a novel multifocus video image fusion algorithm is proposed. Our unique approach requires orders of magnitude fewer calculations than all other known multifocus video image fusion algorithms.