文件列表:

CBCT_FDK_MLEM_March_2014\Demo1_projection.m (1679, 2014-02-28)
CBCT_FDK_MLEM_March_2014\Demo2_FBP.m (2146, 2014-02-28)
CBCT_FDK_MLEM_March_2014\Demo3_MLEM.m (2230, 2014-02-28)
CBCT_FDK_MLEM_March_2014\Phantom128.mat (80436, 2014-02-28)
CBCT_FDK_MLEM_March_2014\Phantom64.mat (15720, 2014-02-28)
CBCT_FDK_MLEM_March_2014\bin\backprojection.m (668, 2014-02-28)
CBCT_FDK_MLEM_March_2014\bin\CTbackprojection.m (315, 2014-02-28)
CBCT_FDK_MLEM_March_2014\bin\CTprojection.m (284, 2014-02-28)
CBCT_FDK_MLEM_March_2014\bin\filtering.m (348, 2014-02-28)
CBCT_FDK_MLEM_March_2014\bin\filtering_conv.m (1739, 2014-02-28)
CBCT_FDK_MLEM_March_2014\bin\filtering_fft.m (1830, 2014-02-28)
CBCT_FDK_MLEM_March_2014\bin\projection.m (1076, 2014-02-28)
license.txt (1304, 2014-02-28)

This program is made by Kyungsang Kim. If you have questions or problems, send an e-mail to me. kssigari@gmail.com Please try these steps for test. 1. Demo1 is the projection for making measurements. 2. Demo2 is the analytic reconstruction well known as the filtered backprojection 3. Demo3 is the iterative reconstruction using the maximum likelihood expectation maximization (MLEM) method. nx: number of image pixels of x-direction ny: number of image pixels of y-direction nz: number of image pixels of z-direction sx: real size (length) of x-axis of the image -> resolution of a pixel = sx/nx sx: real size (length) of y-axis of the image -> resolution of a pixel = sy/ny sx: real size (length) of z-axis of the image -> resolution of a pixel = sz/nz nu: number of detector pixels of x-direction (u) nv: number of detector pixels of z-direction (axial) (v) su: size of real (length) of detector u-direction -> resolution of a pixel = su/nu sv: size of real (length) of detector v-direction -> resolution of a pixel = sv/nv DSD: distance between source to detector DSO: distance between source to iso-center (image center). dir: rotation direction (+1 or -1) clockwise or counter-clockwise: when using real data, if you don't know direction, just try +1 or -1, then you can find it dang: interval of angular sampling (degree), if the value is 1, each projection rotates 1 degree. filteringtype: convolution or fft, two options: 'conv' or 'fft', in 'conv' option we provide only ramp filter. filter: 'ram-lak','shepp-logan','cosine', 'hamming', 'hann' : (ramp + additional filter), working when filteringtype is 'fft' Enjoy

近期下载者：

相关文件：

评论：[我要评论] [举报此文件]

收藏者：