【摘要】 介绍了基于MPI并行程序开发平台实现的一种三维重建并行处理算法。算法采用了Master-Slave并行计算模型,针对射线投射方法的特点,为减少运算时间,选择对图像空间进行任务划分的策略,并用任务池方法实现了动态负载平衡。通过对虚拟中国人女性一号(VCH-F1)的头部和脚部数据集的重建,表明该算法在任务规模和节点规模上具有较好的可扩展性。更多还原

【Abstract】 An algorithm——Master-Slave model for parallel volume rendering based on MPI is presented. According to the features of the ray-casting method, a task division strategy of image space is chosen for speeding up rendering, and a dynamic load balance is obtained via taskpools scheme. The algorithm introduced in this paper has been implemented, and experiment is done on the head and feet dataset of virtual Chinese female No.1 (VCH-F1), results show that this algorithm is provided with good parallel efficiency.更多还原