An interactive quality evaluation of reduced polygon model

In order to improve the drawing speed without degrading the image quality in computer graphics, reduction of number of polygons that are difficult to detect subjectively is preferable. Especially, the number of vertices of the actual facial image becomes huge and the reduction of vertices without subjective degradation is strongly needed. However, the method of reducing the number of vertices uses evaluation functions such as surface area difference, volume difference, and so on. We have developed an interactive presentation system for evaluating the 3D-polygon model. In the experiment, 6 reduced polygon models (the number of polygons is reduced to 80%, 60%, 40%, 20%, 10% and 5%) using 6 evaluation functions are evaluated on the system.