Exemplo n.º 1
0
  /**
   * Creates the meshes of one single phase and adds it to the ArrayList of 4D meshes.
   *
   * @param phase
   * @param parameters
   * @param info
   * @param splines
   */
  private void createPhantom(
      int phase, double[] parameters, CONRADCardiacModelConfig info, ArrayList<Mesh4D> splines) {
    String pcaFile = heartBase + "\\CardiacModel\\phase_" + phase + ".ccm";
    ActiveShapeModel asm = new ActiveShapeModel(pcaFile);
    Mesh allComp = asm.getModel(parameters);

    if (phase == 0) {
      for (int i = 0; i < info.numAnatComp; i++) {
        splines.add(new Mesh4D());
      }
    }

    int count = 0;
    for (heartComponents hc : heartComponents.values()) {
      Mesh comp = new Mesh();
      SimpleMatrix pts =
          allComp
              .getPoints()
              .getSubMatrix(info.vertexOffs[count], 0, hc.getNumVertices(), info.vertexDim);
      // rotate and translate points
      for (int i = 0; i < pts.getRows(); i++) {
        SimpleVector row = SimpleOperators.multiply(rot, pts.getRow(i));
        row.add(trans);
        pts.setRowValue(i, row);
      }
      comp.setPoints(pts);
      comp.setConnectivity(
          allComp
              .getConnectivity()
              .getSubMatrix(info.triangleOffs[count], 0, hc.getNumTriangles(), 3));
      splines.get(count).addMesh(comp);
      count++;
    }
  }
Exemplo n.º 2
0
  private SimpleMatrix ShepMod() {
    // Modified (better contrast) Shepp-Logan Phantom according
    // to P. A. Toft, "The Radon Transform, Theory and Implementation"
    // (unpublished dissertation), p. 199.

    // One row describes properties for a single ellipse
    // Colum Values: A    a     b    x0    y0    phi

    SimpleMatrix Shep = new SimpleMatrix(10, 6);

    Shep.setRowValue(0, new SimpleVector(new double[] {1.0, 0.69, 0.92, 0, 0, 0}));
    Shep.setRowValue(1, new SimpleVector(new double[] {-0.8, 0.6624, 0.8740, 0, -0.0184, 0}));
    Shep.setRowValue(2, new SimpleVector(new double[] {-0.2, 0.1100, 0.3100, 0.22, 0.0, -18.0}));
    Shep.setRowValue(3, new SimpleVector(new double[] {-0.2, 0.1600, 0.4100, -0.22, 0.0, 18.0}));
    Shep.setRowValue(4, new SimpleVector(new double[] {0.1, 0.2100, 0.2500, 0, 0.35, 0}));
    Shep.setRowValue(5, new SimpleVector(new double[] {0.1, 0.0460, 0.0460, 0, 0.1, 0}));
    Shep.setRowValue(6, new SimpleVector(new double[] {0.1, 0.0460, 0.0460, 0, -0.1, 0}));
    Shep.setRowValue(7, new SimpleVector(new double[] {0.1, 0.0460, 0.0230, -0.08, -0.605, 0}));
    Shep.setRowValue(8, new SimpleVector(new double[] {0.1, 0.0230, 0.0230, 0, -0.606, 0}));
    Shep.setRowValue(9, new SimpleVector(new double[] {0.1, 0.0230, 0.0460, 0.06, -0.605, 0}));
    return Shep;
  }
Exemplo n.º 3
0
  private SimpleMatrix ShepOrig() {
    // Original Shepp-Logan Phantom according to:

    // Shepp, L. A., & Logan, B. F. (1974).
    // The Fourier reconstruction of a head section-LA Shepp.
    // IEEE Transactions on Nuclear Science, NS-21, 21�43.

    // One row describes properties for a single ellipse
    // Colum Values: A    a     b    x0    y0    phi

    SimpleMatrix Shep = new SimpleMatrix(10, 6);

    Shep.setRowValue(0, new SimpleVector(new double[] {2.0, 0.69, 0.92, 0, 0, 0}));
    Shep.setRowValue(1, new SimpleVector(new double[] {-0.98, 0.6624, 0.8740, 0, -0.0184, 0}));
    Shep.setRowValue(2, new SimpleVector(new double[] {-0.02, 0.1100, 0.3100, 0.22, 0.0, -18.0}));
    Shep.setRowValue(3, new SimpleVector(new double[] {-0.02, 0.1600, 0.4100, -0.22, 0.0, 18.0}));
    Shep.setRowValue(4, new SimpleVector(new double[] {0.01, 0.2100, 0.2500, 0, 0.35, 0}));
    Shep.setRowValue(5, new SimpleVector(new double[] {0.01, 0.0460, 0.0460, 0, 0.1, 0}));
    Shep.setRowValue(6, new SimpleVector(new double[] {0.01, 0.0460, 0.0460, 0, -0.1, 0}));
    Shep.setRowValue(7, new SimpleVector(new double[] {0.01, 0.0460, 0.0230, -0.08, -0.605, 0}));
    Shep.setRowValue(8, new SimpleVector(new double[] {0.01, 0.0230, 0.0230, 0, -0.606, 0}));
    Shep.setRowValue(9, new SimpleVector(new double[] {0.01, 0.0230, 0.0460, 0.06, -0.605, 0}));
    return Shep;
  }