医学体数据三维重建的体绘制加速算法研究

Fast Volume Rendering Methods for 3D Reconstruction of Medical Images

  • 摘要: 研究有效的体绘制加速算法.在抛雪球法的基础上,采用提取最近表面体素的方法实现加速.提出新的分割方法,以体素原有的灰度值作为颜色值的3个分量,将所有体素的不透明度设为0.9或1.0,结果表明,加速算法能满足显示要求且加速作用明显.该加速算法结合了表面绘制方法和体绘制方法的优点,但只适用于不透明物体的重建显示.

     

    Abstract: An effective fast volume rendering algorithm is investigated. Based on the splatting algorithm, an accelerated algorithm is used to pick up the nearest surface volume and realize fast volume rendering. A new method of separation for volume data is presented. Through this algorithm, high quality images can be obtained in much faster speed. The algorithm is a combination of surface rendering and volume rendering methods, in possession of the strongpoints of both. It is only fit for the reconstruction of opaque objects.

     

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