High precision hybrid technique of surface and volume rendering

The surface and volume rendering techniques are frequently applied to reconstruct 3-D image sequence based on CT (Computerized Tomography) and MRI (Magnetic Resonant imaging). Surface rendering can fully capture the geometric features of isosurface, however, it does not have the internal geometry information. Volume rendering reconstruction technique includes the detailed internal features, but it does not reflect the geometric features of the isosurface of interest. 3-D reconstruction software VTK can render both the surface and volume information at the same time, and its rendering performance is similar to that obtained by using the surface rendering method, however, its surface and volume rendering do not fully show their advantages over the surface or volume rendering. Based on the high-precision surface rendering technique, the combination of surface and volume rendering is obviously better than only using one of them, and consequently, it has a significant improvement on the practical applications.