Синтез двунаправленных текстурных функций для функционально заданных поверхностей

Abstract

When forming graphic images, it is necessary to realistically reproduce the surfaces of objects. In this case, the texturing procedure is widely used. The method for the synthetic generation of a bidirectional texture function is purposed. It consists of three steps. The first step is the approximate 3D geometry of the surface and parts is restored. Then a new version of geometric details is generated, which has the same statistical properties as the surface of the sample with nonparametric sampling. Next, the procedure for synthesizing new images for reconstructed or synthesized geometric parts under various viewing / lighting installations occurs. Experimental results show that the method effectively and efficiently generates BTFs (Figure 1-3). There are some limitations of the method in restoring the details of the meso structure. For example, regularization conditions are introduced for both geometry and reflection. Although they were spatially adapted, it is still difficult to determine the discontinuities when restoring the geometry of natural objects. And the elevation map recovery method needs a dominant local diffuse component