【摘要】 目的利用Matlab数学工具重建CT图像。用完全相同的程序和图像模型,对比在Linux平台下和在Windows平台下的运行速度。方法运行Matlab数学工具,使用不同像素大小Shepp-Logan的headphantom切片,通过投影得出投影数据,然后用傅立叶逆变换、滤波反投影和雷登逆变换等方法,在不同操作系统Linux和Windows下运行。结果在操作系统Linux下运行CT图像重建程序效率明显高于Windows。结论 Linux操作平台的具有更高的CT图像重建效率。更多还原

【Abstract】 Objective To compare the speed of CT image reconstruction using the Linux and Windows OS.Methods Shepp-Logan head phantom in different pixel size was projected to obtain the sinogram by using the inverse Fourier transformation,filtered back projection and Radon transformation on both Linux and Windows OS.Results CT image reconstruction using the Linux operating system was significantly better and more efficient than Windows.Conclusion CT image reconstruction using the Linux operating system is more efficient.更多还原