Interactive free-viewpoint selection applied to a 3D multi-view video signal is an attractive feature of the rapidly developing 3DTV media. In recent years, significant research has been done on free-viewpoint rendering algorithms which mostly have similar building blocks. In this paper, we analyze the four principal building blocks of most recent rendering algorithms and their contribution to the overall rendering quality. We have discovered that the rendering quality is dominated by the first step, Warping which determines the basic quality level of the complete rendering chain. The third step, Blending, is a valuable step which further increases the rendering quality by as
Luat Do, Svitlana Zinger, Peter H. N. de With