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java.lang.Objectedu.stanford.rsl.konrad.phantom.SheppLogan3D
public class SheppLogan3D
Three-dimensional Shepp-Logan Phantom in both the Fourier and image domains.
This is a class called SheppLogan3D. It can be used to generate Fourier domain
signal (or k-space) as well as image domain signal based on a 3-dimensional
analytical phantom in both domains. Please refer to the source code or
the article referenced below for further information.
Please refer to
Koay CG, Sarlls JE, Özarslan E.
Three Dimensional Analytical Magnetic Resonance Imaging Phantom in the Fourier Domain. Magn Reson Med. 58: 430-436 (2007)
for further information.
Constructor Summary | |
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SheppLogan3D()
Creates a new instance of SheppLogan3D |
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SheppLogan3D(double[][] ellipsoids)
User may add new ellipsoids and change their properties with this constructor. |
Method Summary | |
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double[][] |
FourierDomainSignal(double[][] kList)
Given a list of (kx,ky,kz), the k-space signals at those locations are returned. |
double[] |
FourierDomainSignal(double kx,
double ky,
double kz)
returning the complex signal evaluated at ( kx, ky, kz) in an array of length 2, i.e. |
double[] |
ImageDomainSignal(double[][] rList)
Given a list of position vectors, i.e. |
double |
ImageDomainSignal(double x,
double y,
double z)
returning real value of the image intensity at (x,y,z). |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public SheppLogan3D()
public SheppLogan3D(double[][] ellipsoids)
ellipsoids
- is a two dimensional matrix arranged according to the following convention:
delta_x, delta_y, delta_z, a, b, c, phi, theta, psi, rho {{ 0, 0, 0, 0.69, 0.92, 0.9, 0, 0, 0, 2. }, { 0, 0, 0, 0.6624, 0.874, 0.88, 0, 0, 0, -0.8 }, { -0.22, 0., -0.25, 0.41, 0.16, 0.21, (3*Math.PI)/5., 0, 0, -0.2 }, { 0.22, 0., -0.25, 0.31, 0.11, 0.22, (2*Math.PI)/5., 0, 0, -0.2 }, { 0, 0.35, -0.25, 0.21, 0.25, 0.5, 0, 0, 0, 0.2 }, { 0, 0.1, -0.25, 0.046, 0.046, 0.046, 0, 0, 0, 0.2 }, { -0.08, -0.65, -0.25, 0.046, 0.023, 0.02, 0, 0, 0, 0.1 }, { 0.06, -0.65, -0.25, 0.046, 0.023, 0.02, 0, 0, 0, 0.1 }, { 0.06, -0.105, 0.625, 0.056, 0.04, 0.1, Math.PI/2., 0, 0, 0.2 }, { 0., 0.1, 0.625, 0.056, 0.056, 0.1, Math.PI/2., 0, 0, -0.2 }};
Method Detail |
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public double[] ImageDomainSignal(double[][] rList)
public double ImageDomainSignal(double x, double y, double z)
public double[][] FourierDomainSignal(double[][] kList)
public double[] FourierDomainSignal(double kx, double ky, double kz)
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