Abstract: In order to clip volume data by interactive speed,we proposed the concept of Clipping Distance Field (CDF) and a CDF based clipping simulation algorithm. By combining volume rendering and clipping in the shader of GPU, the algorithm also achieved the high rendering/clipping speed required by interactive simulation. The result shows that the algorithm can process clipped data with different shape.

Key words: Medical image, 3D Clipping simulation, Clipping distance field, Depth buffer