近年来,图形处理单元的发展取得了巨大的进步。当前的顶级图形卡的计算能力达到10 TFLOPS以上,这是平均水平的现代台式机CPU的100倍。
RadiAnt DICOM Viewer中可用的三维重建模式(3D体积渲染; 3D多平面重建)基于算法,每帧重建图像需要进行数百亿次数学运算。使用CPU进行此类计算时,必须使用渐进式渲染以促进平滑交互所需的流动性。只有当用户停止音量控制时,才能以最佳质量渲染最终图像。但是,如果在系统中检测到兼容的GPU卡,则RadiAnt DICOM Viewer可以使用它以更快的速度处理数字,从而可以最佳的渲染质量实现与体积的平滑交互。
检测到快速的Nvidia图形卡后,将在3D VR和3D MPR窗口中自动启用GPU渲染模式。如果检测到较慢的卡,则必须手动启用GPU模式。
先决条件
•要使用GPU加速渲染,需要64位版本的RadiAnt DICOM Viewer,但在32位版本的查看器中不支持此模式。
•应该安装最新的Nvidia驱动程序(http://www.nvidia.com/Download/index.aspx)。
•3.0版或更高版本的计算功能需要Nvidia CUDA兼容GPU:
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