Three dimensional (3-D) rendering is a useful technique for visualizing anatomical structures. However, the rendering process is computationally expensive. In this paper, we present a 3D renderer which can render 3D medical images in real time but requires little data pre- processing, a small amount of additional memory and no special hardware. The system has the capacity of rendering multiple objects so that the complex relationship between different segmented anatomical structured can be illustrated in the rendered view.
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