For almost all kinds of medical images

especially image series generated by CT

MRI and B-Scan

the difficulty consisting in the rendering of three-dimensional (3D) volume data set is actually a key hindrance for 3D Visualization. Aiming at the problem

a lot of models and algorithms have been proposed. In medical imaging

shortly after the publication of“Volume Rendering”written by Dr. Drebin

the algorithm of volume rendering based on classification became very popular. However

the common method can be only a makeshift. 3D visualization

in terms of direct insight into the volume data set

should not be the superstructure of classification

but the basis of it. Summarizing the Source-Attenuation model of volume rendering and Lambert Cosine Law of diffuse reflection

in the paper

a new light model of Source &Reflection-Attenuation for 3D Visualization in Medical Imaging is proposed. This model assumes that each point in the three-dimensional scalar data field is a light source and can also reflect the incident ray

moreover the distributing of reflected light conforms to Lambert Cosine Law of diffuse reflection. The experimental results show that the new model can produce vivid 3D images

when used for 3D visualization in medical imaging.