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This program is made by Kyungsang Kim.If you have questions or problems, send an e-mail to me.kssigari@gmail.comPlease try these steps for test.1. Demo1 is the projection for making measurements. 2. Demo2 is the analytic reconstruction well known as the filtered backprojection3. Demo3 is the iterative reconstruction using the maximum likelihood expectation maximization (MLEM) method.nx: number of image pixels of x-directionny: number of image pixels of y-directionnz: number of image pixels of z-directionsx: real size (length) of x-axis of the image -> resolution of a pixel = sx/nxsx: real size (length) of y-axis of the image -> resolution of a pixel = sy/nysx: real size (length) of z-axis of the image -> resolution of a pixel = sz/nznu: 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/nusv: size of real (length) of
neil029
2016-08-23
0
1
Simulation of sampling to obtain 360 degree projec
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360-degree projection simulation of sampling to obtain data by iradon transform it processes directly get the slice Cone beam CT simulationBy:Deshan Yang, PhD Department of radiation oncology, school of medicine, Washington University in Saint Louis Email: dyang@radonc.wustl.edu Files: compute_projections.m - the main program, to compute all projection and save the 2D projection images into a folder compute_one_projection.m - Called by the main program to compute only one projection image straight_line_integral.m - The core function to compute a line integral through a 3D matrix A lot of lines are commented out in this file because the file was originally written in MATLAB only, and laterly rewritten into c for speed improvement. straight_line_integral_inner.c - This is what rewritten in C from the straight_line_integral.m sort_ts1_ts2.c - A utility function to combine two sorted array into one sorted
neil029
2016-08-23
0
1
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