** This is part of the CTSim program
** Copyright (C) 1983-2000 Kevin Rosenberg
**
-** $Id: projections.cpp,v 1.9 2000/07/03 11:02:06 kevin Exp $
+** $Id: projections.cpp,v 1.24 2000/08/31 08:38:58 kevin Exp $
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License (version 2) as
m_phmLen = scanner.phmLen();
m_rotInc = scanner.rotInc();
m_detInc = scanner.detInc();
+ m_geometry = scanner.geometry();
+ m_focalLength = scanner.focalLength();
+ m_fieldOfView = scanner.fieldOfView();
m_rotStart = 0;
- m_detStart = -scanner.radius() + (scanner.detInc() / 2);
- m_phmLen = scanner.phmLen();
+ m_detStart = -(scanner.detLen() / 2);
+#if 0
+ if (m_geometry == Scanner::GEOMETRY_EQUILINEAR) {
+ m_detInc /= 2;
+ cout << "Kludge: detInc /= 2 in Projections::initFromScanner" << endl;
+ }
+#endif
}
void
kfloat64 _detStart = m_detStart;
kfloat64 _detInc = m_detInc;
kfloat64 _phmLen = m_phmLen;
-
+ kfloat64 _fieldOfView = m_fieldOfView;
+ kfloat64 _focalLength = m_focalLength;
+
fs.seekp(0);
if (! fs)
return false;
fs.writeFloat64 (_detStart);
fs.writeFloat64 (_detInc);
fs.writeFloat64 (_phmLen);
+ fs.writeFloat64 (_focalLength);
+ fs.writeFloat64 (_fieldOfView);
fs.writeInt16 (_year);
fs.writeInt16 (_month);
fs.writeInt16 (_day);
{
kuint16 _hsize, _signature, _year, _month, _day, _hour, _minute, _second, _remarksize = 0;
kuint32 _nView, _nDet, _geom;
- kfloat64 _calcTime, _rotStart, _rotInc, _detStart, _detInc, _phmLen;
+ kfloat64 _calcTime, _rotStart, _rotInc, _detStart, _detInc, _phmLen, _focalLength, _fieldOfView;
fs.seekg(0);
if (! fs)
return false;
- off_t testPos;
fs.readInt16 (_hsize);
fs.readInt16 (_signature);
fs.readInt32 (_nView);
fs.readFloat64 (_detStart);
fs.readFloat64 (_detInc);
fs.readFloat64 (_phmLen);
+ fs.readFloat64 (_focalLength);
+ fs.readFloat64 (_fieldOfView);
fs.readInt16 (_year);
fs.readInt16 (_month);
fs.readInt16 (_day);
m_detStart = _detStart;
m_detInc = _detInc;
m_phmLen = _phmLen;
+ m_focalLength = _focalLength;
+ m_fieldOfView = _fieldOfView;
m_year = _year;
m_month = _month;
m_day = _day;
return true;
}
+bool
+Projections::read (const string& filename)
+{
+ return read (filename.c_str());
+}
+
+
bool
Projections::read (const char* filename)
{
}
+bool
+Projections::write (const string& filename)
+{
+ return write (filename.c_str());
+}
+
bool
Projections::write (const char* filename)
{
darray.setViewAngle (view_angle);
// darray.setNDet ( nDet);
- for (int i = 0; i < nDet; i++) {
+ for (unsigned int i = 0; i < nDet; i++) {
kfloat32 detval;
fs.readFloat32 (detval);
detval_ptr[i] = detval;
fs.writeFloat64 (view_angle);
fs.writeInt32 (nDet);
- for (int i = 0; i < nDet; i++) {
+ for (unsigned int i = 0; i < nDet; i++) {
kfloat32 detval = detval_ptr[i];
fs.writeFloat32 (detval);
}
void
Projections::printProjectionData (void)
{
- printf("Projections Print\n\n");
+ printf("Projections Data\n\n");
printf("Description: %s\n", m_remark.c_str());
- printf("nView = %d nDet = %d\n", m_nView, m_nDet);
- printf("rotStart = %8.4f rotInc = %8.4f\n", m_rotStart, m_rotInc);
- printf("detStart = %8.4f detInc = %8.4f\n", m_detStart, m_detInc);
-
+ printf("Geometry: %s\n", Scanner::convertGeometryIDToName (m_geometry));
+ printf("nView = %8d nDet = %8d\n", m_nView, m_nDet);
+ printf("focalLength = %8.4f fieldOfView = %8.4f\n", m_focalLength, m_fieldOfView);
+ printf("rotStart = %8.4f rotInc = %8.4f\n", m_rotStart, m_rotInc);
+ printf("detStart = %8.4f detInc = %8.4f\n", m_detStart, m_detInc);
if (m_projData != NULL) {
for (int ir = 0; ir < m_nView; ir++) {
+ printf("View %d: angle %f\n", ir, m_projData[ir]->viewAngle());
DetectorValue* detval = m_projData[ir]->detValues();
for (int id = 0; id < m_projData[ir]->nDet(); id++)
printf("%8.4f ", detval[id]);
}
void
-Projections::printScanInfo (void) const
+Projections::printScanInfo (ostringstream& os) const
{
- printf ("Number of detectors: %d\n", m_nDet);
- printf (" Number of views: %d\n", m_nView);
- printf (" Remark: %s\n", m_remark.c_str());
- printf (" phmLen: %f\n", m_phmLen);
- printf (" detStart: %f\n", m_detStart);
- printf (" detInc: %f\n", m_detInc);
- printf (" rotStart: %f\n", m_rotStart);
- printf (" rotInc: %f\n", m_rotInc);
+ os << "Number of detectors: " << m_nDet << "\n";
+ os << " Number of views: " << m_nView<< "\n";
+ os << " Remark: " << m_remark.c_str()<< "\n";
+ os << " Geometry: " << Scanner::convertGeometryIDToName (m_geometry)<< "\n";
+ os << " Focal Length: " << m_focalLength<< "\n";
+ os << " Field Of View: " << m_fieldOfView<< "\n";
+ os << " phmLen: " << m_phmLen<< "\n";
+ os << " detStart: " << m_detStart<< "\n";
+ os << " detInc: " << m_detInc<< "\n";
+ os << " rotStart: " << m_rotStart<< "\n";
+ os << " rotInc: " << m_rotInc<< "\n";
}
*/
bool
-Projections::reconstruct (ImageFile& im, const char* const filterName, double filt_param, const char* const filterMethodName, const char* const interpName, int interp_param, const char* const backprojectName, const int trace)
+Projections::reconstruct (ImageFile& im, const char* const filterName, double filt_param, const char* const filterMethodName, const int zeropad, const char* filterGenerationName, const char* const interpName, int interpFactor, const char* const backprojectName, const int trace) const
{
- int nview = m_nView;
double detInc = m_detInc;
- int n_filteredProj = m_nDet;
+ int n_filteredProj = m_nDet * interpFactor;
double filteredProj [n_filteredProj]; // filtered projections
#ifdef HAVE_BSPLINE_INTERP
int spline_order = 0, zoom_factor = 0;
if (interp_type == I_BSPLINE) {
- zoom_factor = interp_param;
+ zoom_factor = interpFactor;
spline_order = 3;
zoom_factor = 3;
n_filteredProj = (m_nDet - 1) * (zoom_factor + 1) + 1;
#endif
double filterBW = 1. / detInc;
- SignalFilter filter (filterName, filterMethodName, filterBW, m_detInc, m_nDet, filt_param, "spatial", 0);
- if (filter.fail()) {
- sys_error (ERR_SEVERE, "%s [Projections::reconstruct]", filter.failMessage().c_str());
+ ProcessSignal processSignal (filterName, filterMethodName, filterBW, m_detInc, m_nDet, filt_param, "spatial", filterGenerationName, zeropad, interpFactor, trace, m_geometry, m_focalLength);
+
+ if (processSignal.fail()) {
+ sys_error (ERR_SEVERE, "%s [Projections::reconstruct]", processSignal.failMessage().c_str());
return false;
}
cout << "Reconstruct: filter="<<filterName<< ", interp="<<interpName<<", backproject="<<backprojectName<<endl;
#if HAVE_SGP
- SGP_ID gid;
- int n_vec_filter = filter.getNFilterPoints();
- double plot_xaxis [n_vec_filter]; // array for plotting
+ int nVecFilter = processSignal.getNFilterPoints();
+ double plot_xaxis [nVecFilter]; // array for plotting
- if (trace > TRACE_TEXT) {
+ if (trace > Trace::TRACE_CONSOLE && nVecFilter > 0) {
int i;
double f;
- double filterInc = filter.getFilterIncrement();
- for (i = 0, f = filter.getFilterMin(); i < n_vec_filter; i++, f += filterInc)
+ double filterInc = processSignal.getFilterIncrement();
+ for (i = 0, f = processSignal.getFilterMin(); i < nVecFilter; i++, f += filterInc)
plot_xaxis[i] = f;
-
- gid = ezplot (plot_xaxis, filter.getFilter(), n_vec_filter);
- cio_put_str ("Press any key to continue");
- cio_kb_getc ();
- sgp2_close (gid);
+
+ if (processSignal.getFilter()) {
+ SGPDriver sgpDriver ("Filter Function");
+ SGP sgp (sgpDriver);
+ EZPlot ezplot (sgp);
+
+ ezplot.ezset ("title Filter Response");
+ ezplot.addCurve (plot_xaxis, processSignal.getFilter(), nVecFilter);
+ ezplot.plot();
+ cio_put_str ("Press any key to continue");
+ cio_kb_getc ();
+ }
}
- if (trace >= TRACE_TEXT) {
+ if (trace >= Trace::TRACE_CONSOLE) {
printf ("nview=%d, ndet=%d, det_start=%.4f, detInc=%.4f\n", m_nView, m_nDet, m_detStart, m_detInc);
}
#endif //HAVE_SGP
- Backprojector bj (*this, im, backprojectName, interpName);
+ Backprojector bj (*this, im, backprojectName, interpName, interpFactor);
if (bj.fail()) {
sys_error (ERR_SEVERE, "%s [Projections::reconstruct]", bj.failMessage().c_str());
return false;
}
for (int iview = 0; iview < m_nView; iview++) {
- if (trace >= TRACE_TEXT)
- printf ("Reconstructing view %d (last = %d)\n", iview, m_nView - 1);
+ if (trace >= Trace::TRACE_CONSOLE)
+ cout <<"Reconstructing view " << iview << "(last = " << m_nView - 1 << ")\n";
- DetectorArray& darray = getDetectorArray (iview);
- DetectorValue* detval = darray.detValues();
-
- filter.filterSignal (detval, filteredProj);
-
- // for (int j = 0; j < m_nDet; j++)
- // filteredProj[j] = filter.convolve (detval, detInc, j, m_nDet);
+ const DetectorArray& darray = getDetectorArray (iview);
+ const DetectorValue* detval = darray.detValues();
-#ifdef HAVE_SGP
- if (trace >= TRACE_PLOT) {
- ezset ("clear.");
- ezset ("xticks major 5.");
- ezset ("xlabel ");
- ezset ("ylabel ");
- ezset ("xlength .5.");
- ezset ("box.");
- ezset ("grid.");
- ezset ("ufinish yes.");
- ezplot (detval, plot_xaxis, m_nDet);
- ezset ("clear.");
- ezset ("xticks major 5.");
- ezset ("xlabel ");
- ezset ("ylabel ");
- ezset ("ustart yes.");
- ezset ("xporigin .5.");
- ezset ("xlength .5.");
- ezset ("box");
- ezset ("grid");
- gid = ezplot (filteredProj, plot_xaxis, m_nDet);
- }
-#endif //HAVE_SGP
+ processSignal.filterSignal (detval, filteredProj);
#ifdef HAVE_BSPLINE_INTERP
if (interp_type == I_BSPLINE)
bspline (m_nDet, zoom_factor, spline_order, filteredProj, filteredProj);
#ifdef HAVE_SGP
- if (trace >= TRACE_PLOT && interp_type == I_BSPLINE) {
+ if (trace >= Trace::TRACE_PLOT && interp_type == I_BSPLINE) {
bspline (m_nDet, zoom_factor, spline_order, filteredProj, filteredProj);
ezplot_1d (filteredProj, n_filteredProj);
}
bj.BackprojectView (filteredProj, darray.viewAngle());
#ifdef HAVE_SGP
- if (trace >= TRACE_PLOT) {
+ if (trace >= Trace::TRACE_PLOT) {
+ SGPDriver sgpDriverProj ("Projection");
+ SGP sgpProj (sgpDriverProj);
+ EZPlot ezplotProj (sgpProj);
+
+ ezplotProj.ezset ("clear");
+ ezplotProj.ezset ("title Filtered Projection");
+ ezplotProj.ezset ("xticks major 5.");
+ ezplotProj.ezset ("xlabel ");
+ ezplotProj.ezset ("ylabel ");
+ ezplotProj.ezset ("yporigin .5.");
+ ezplotProj.ezset ("ylength .5.");
+ ezplotProj.ezset ("box.");
+ ezplotProj.ezset ("grid.");
+ ezplotProj.addCurve (plot_xaxis, detval, m_nDet);
+ ezplotProj.plot();
+ ezplotProj.ezset ("clear");
+ ezplotProj.ezset ("xticks major 5.");
+ ezplotProj.ezset ("xlabel ");
+ ezplotProj.ezset ("ylabel ");
+ ezplotProj.ezset ("ylength .5.");
+ ezplotProj.ezset ("box");
+ ezplotProj.ezset ("grid");
+ ezplotProj.addCurve (plot_xaxis, filteredProj, n_filteredProj);
+ ezplotProj.plot();
+
+ cout << "Do you want to exit with current pic (y/n)? " << flush;
char str[256];
- printf ("Do you want to exit with current pic (y/n) -- ");
fgets(str, sizeof(str), stdin);
- sgp2_close (sgp2_get_active_win());
if (tolower(str[0]) == 'y') {
break;
}
projects / ctsim.git / blobdiff