H03: The Effects of Different Triangulation Techniques for Cage Based Image Deformation Using Generalized Barycentric Coordinates

Tóth,Á., Kunkli,R.

Abstract:
In computer graphics, the generalized barycentric coordinates (GBC) are often used for image deformation. To manipulate an input image using a cage based image deformation method, we usually have to consider a source polygon with a triangulation; but defining the triangulation of the source polygon is not a trivial task in most cases. In this paper, a uniform and a non-uniform triangulation technique---which can be the basis of the cage based image deformation---are introduced and compared. Moreover, different texture filtering methods are tried, producing various deformation results. Experimental results and demonstrative pictures show the behaviors of the triangulation methods.