1. Introduction
Building a mosaic image from a sequence of partial views is a powerful means of obtaining a broader view of a scene than is available within a single view, and has been used in a large range of applications [1]. One application domain in which mosaics are particularly valuable is in the diagnosis and treatment of diseases of the retina. Consider two images of the retinal surface, and , taken from two different viewpoints or, equivalently, by two different cameras, and (see Figure 1). A seamless mosaic formed from this multiple fundus images aids in diagnosis, provides a means for monitoring the progression of diseases, and may be used as a spatial map during surgical treatment.