Visual and complexity analysis of the Extended Loop subdivision scheme

Abstract

This paper is a study of a new subdivision schemeExtended Loop -proposed within the MPEG-4 multimedia compression standard by Superscape. Extended Loop is a scheme designed for subdividing arbitrary polygons and is a hybrid between Loop for triangular meshes andCatmull-Clark for quad meshes. Therefore, we compare the visual appearance and the complexity of Extended Loop with these traditional schemes. This paper shows that besides its superior flexibility, the scheme exhibits performances comparable to Loop and Catmull-Clark.