--- /dev/null
+/*****************************************************************************
+** This is part of the CTSim program
+** Copyright (C) 1983-2000 Kevin Rosenberg
+**
+** $Id: ctrec.cpp,v 1.1 2000/06/07 02:29:05 kevin Exp $
+** $Log: ctrec.cpp,v $
+** Revision 1.1 2000/06/07 02:29:05 kevin
+** Initial C++ versions
+**
+** Revision 1.13 2000/06/05 01:33:25 kevin
+** BSpline changes
+**
+** Revision 1.12 2000/05/24 22:50:04 kevin
+** Added support for new SGP library
+**
+** Revision 1.11 2000/05/16 04:33:59 kevin
+** Improved option processing
+**
+** Revision 1.10 2000/05/11 01:06:30 kevin
+** Changed sprintf to snprintf
+**
+** Revision 1.9 2000/05/08 20:02:32 kevin
+** ANSI C changes
+**
+** Revision 1.8 2000/05/04 18:16:34 kevin
+** renamed filter definitions
+**
+** Revision 1.7 2000/05/03 08:49:50 kevin
+** Code cleanup
+**
+** Revision 1.6 2000/05/02 15:31:47 kevin
+** code cleaning
+**
+** Revision 1.5 2000/04/30 11:41:06 kevin
+** Cleaned up debugging code
+**
+** Revision 1.4 2000/04/30 10:13:27 kevin
+** Fixed MPI bugs
+**
+** Revision 1.3 2000/04/30 04:06:13 kevin
+** Update Raysum i/o routines
+** Fix MPI bug in ctrec (scatter_raysum) that referenced rs_global
+**
+** Revision 1.2 2000/04/29 23:24:56 kevin
+** *** empty log message ***
+**
+** Revision 1.1.1.1 2000/04/28 13:02:44 kevin
+** Initial CVS import for first public release
+**
+**
+**
+** 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
+** published by the Free Software Foundation.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+** GNU General Public License for more details.
+**
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software
+** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+******************************************************************************/
+
+/* FILE
+ * ctrec.c Reconstruct an image from raysums
+ *
+ * DATE
+ * Aug 84
+ * Jul 99 -- Converted to ANSI C
+ * Added MPI parallel processing
+ */
+
+#include "ct.h"
+
+enum {O_INTERP, O_FILTER, O_FILTER_PARAM, O_BACKPROJ, O_VERBOSE, O_TRACE, O_HELP, O_DEBUG, O_VERSION};
+
+static struct option my_options[] =
+{
+ {"interp", 1, 0, O_INTERP},
+ {"filter", 1, 0, O_FILTER},
+ {"filter-param", 1, 0, O_FILTER_PARAM},
+ {"backproj", 1, 0, O_BACKPROJ},
+ {"trace", 1, 0, O_TRACE},
+ {"debug", 0, 0, O_DEBUG},
+ {"verbose", 0, 0, O_VERBOSE},
+ {"help", 0, 0, O_HELP},
+ {"version", 0, 0, O_VERSION},
+ {0, 0, 0, 0}
+};
+
+void
+ctrec_usage (const char *program)
+{
+ fprintf(stdout,"usage: %s raysum-file image-file nx-image ny-image [OPTIONS]\n", kbasename(program));
+ fprintf(stdout,"Image reconstruction from raysum projections\n");
+ fprintf(stdout,"\n");
+ fprintf(stdout," raysum-file Input raysum file\n");
+ fprintf(stdout," image-file Output image file in SDF2D format\n");
+ fprintf(stdout," nx-image Number of columns in output image\n");
+ fprintf(stdout," ny-image Number of rows in output image\n");
+ fprintf(stdout," --interp Interpolation method during backprojection\n");
+ fprintf(stdout," nearest Nearest neighbor interpolation\n");
+ fprintf(stdout," linear Linear interpolation\n");
+#if HAVE_BSPLINE_INTERP
+ fprintf(stdout," bspline B-spline interpolation\n");
+#endif
+ fprintf(stdout," --filter Filter name\n");
+ fprintf(stdout," abs_bandlimit Abs * Bandlimiting (default)\n");
+ fprintf(stdout," abs_sinc Abs * Sinc\n");
+ fprintf(stdout," abs_cos Abs * Cosine\n");
+ fprintf(stdout," abs_hamming Abs * Hamming\n");
+ fprintf(stdout," shepp Shepp-Logan\n");
+ fprintf(stdout," bandlimit Bandlimiting\n");
+ fprintf(stdout," sinc Sinc\n");
+ fprintf(stdout," cos Cosine\n");
+ fprintf(stdout," triangle Triangle\n");
+ fprintf(stdout," hamming Hamming\n");
+ fprintf(stdout," --backproj Backprojection Method\n");
+ fprintf(stdout," trig Trigometric functions at every point\n");
+ fprintf(stdout," table Trigometric functions with precalculated table\n");
+ fprintf(stdout," diff Difference method\n");
+ fprintf(stdout," diff2 Optimized difference method (default)\n");
+ fprintf(stdout," idiff2 Optimized difference method with integer math\n");
+ fprintf(stdout," --filter-param Alpha level for Hamming filter\n");
+ fprintf(stdout," --trace Set tracing to level\n");
+ fprintf(stdout," none No tracing (default)\n");
+ fprintf(stdout," text Text level tracing\n");
+ fprintf(stdout," phm Trace phantom\n");
+ fprintf(stdout," rays Trace allrays\n");
+ fprintf(stdout," plot Trace plotting\n");
+ fprintf(stdout," clipping Trace clipping\n");
+ fprintf(stdout," --verbose Turn on verbose mode\n");
+ fprintf(stdout," --debug Turn on debug mode\n");
+ fprintf(stdout," --version Print version\n");
+ fprintf(stdout," --help Print this help message\n");
+}
+
+
+#ifdef MPI_CT
+static void mpi_scatter_rs (RAYSUM *rs_global, RAYSUM *rs_local, const int debug);
+#endif
+
+static void print_raysum_info(const RAYSUM *rs);
+
+int
+ctrec_main (const int argc, char *const argv[])
+{
+ IMAGE *im_global = NULL;
+ RAYSUM *rs_global = NULL;
+ char *rs_name, *im_filename = NULL;
+ char remark[MAXREMARK];
+ char filt_name[80];
+ int nx, ny;
+ double time_start = 0, time_end = 0;
+ char *endptr;
+ int opt_verbose = 0;
+ int opt_debug = 0;
+ int opt_trace = TRACE_NONE;
+ double opt_filter_param = 1;
+ FilterType opt_filter = FILTER_ABS_BANDLIMIT;
+ InterpolationType opt_interp = I_LINEAR;
+ int opt_interp_param = 1;
+ BackprojType opt_backproj = O_BPROJ_DIFF2;
+#ifdef MPI_CT
+ IMAGE *im_local;
+ RAYSUM *rs_local;
+ int mpi_argc = argc;
+ char **mpi_argv = (char **) argv;
+ int mpi_nview, mpi_ndet;
+ double mpi_detinc, mpi_rotinc, mpi_phmlen;
+ double mpi_t1, mpi_t2, mpi_t, mpi_t_g;
+ int ix;
+
+ MPI_Init(&mpi_argc, &mpi_argv);
+ MPI_Comm_dup (MPI_COMM_WORLD, &mpi_ct.comm);
+ MPI_Comm_size(mpi_ct.comm, &mpi_ct.nproc);
+ MPI_Comm_rank(mpi_ct.comm, &mpi_ct.my_rank);
+
+ if (mpi_ct.nproc > MPI_MAX_PROCESS) {
+ sys_error(ERR_FATAL, "Number of mpi processes (%d) exceeds max processes (%d)",
+ mpi_ct.nproc, MPI_MAX_PROCESS);
+ exit(1);
+ }
+#endif
+
+#ifdef MPI_CT
+ time_start = MPI_Wtime();
+#else
+ time_start = td_current_sec();
+#endif
+
+#ifdef MPI_CT
+ if (mpi_ct.my_rank == 0) {
+#endif
+ while (1) {
+ int c = getopt_long(argc, argv, "", my_options, NULL);
+ char *endptr = NULL;
+
+ if (c == -1)
+ break;
+
+ switch (c)
+ {
+ case O_INTERP:
+ if ((opt_interp = opt_set_interpolation(optarg)) < 0) {
+ ctrec_usage(argv[0]);
+ return (1);
+ }
+ break;
+ case O_FILTER:
+ if ((opt_filter = opt_set_filter(optarg)) < 0) {
+ ctrec_usage(argv[0]);
+ return (1);
+ }
+ break;
+ case O_BACKPROJ:
+ if ((opt_backproj = opt_set_backproj(optarg)) < 0) {
+ ctrec_usage(argv[0]);
+ return (1);
+ }
+ break;
+ case O_FILTER_PARAM:
+ opt_filter_param = strtod(optarg, &endptr);
+ if (endptr != optarg + strlen(optarg)) {
+ ctrec_usage(argv[0]);
+ }
+ break;
+ case O_VERBOSE:
+ opt_verbose = 1;
+ break;
+ case O_DEBUG:
+ opt_debug = 1;
+ break;
+ case O_TRACE:
+ if ((opt_trace = opt_set_trace(optarg)) < 0) {
+ ctrec_usage(argv[0]);
+ return (1);
+ }
+ break;
+ case O_VERSION:
+#ifdef VERSION
+ fprintf(stdout, "Version %s\n", VERSION);
+#else
+ fprintf(stderr, "Unknown version number");
+#endif
+ exit(0);
+ case O_HELP:
+ case '?':
+ ctrec_usage(argv[0]);
+ return (0);
+ default:
+ ctrec_usage(argv[0]);
+ return (1);
+ }
+ }
+
+ if (optind + 4 != argc) {
+ ctrec_usage(argv[0]);
+ return (1);
+ }
+
+ rs_name = argv[optind];
+
+ im_filename = argv[optind + 1];
+
+ nx = strtol(argv[optind + 2], &endptr, 10);
+ ny = strtol(argv[optind + 3], &endptr, 10);
+
+ if (opt_filter == FILTER_G_HAMMING || opt_filter == FILTER_ABS_G_HAMMING)
+ snprintf (filt_name, sizeof(filt_name), "%s: alpha = %.2f",
+ name_of_filter (opt_filter), opt_filter_param);
+ else
+ snprintf (filt_name, sizeof(filt_name), "%s", name_of_filter (opt_filter));
+
+ snprintf (remark, sizeof(remark), "Reconstruct: %dx%d, %s, %s, %s",
+ nx, ny, filt_name, name_of_interpolation (opt_interp), name_of_backproj(opt_backproj));
+
+ if (opt_verbose)
+ fprintf (stdout, "%s\n", remark);
+#ifdef MPI_CT
+ }
+#endif
+
+#ifdef MPI_CT
+ if (mpi_ct.my_rank == 0) {
+ rs_global = raysum_open (rs_name);
+ raysum_read (rs_global);
+ if (opt_verbose)
+ print_raysum_info(rs_global);
+
+ mpi_ndet = rs_global->ndet;
+ mpi_nview = rs_global->nview;
+ mpi_detinc = rs_global->det_inc;
+ mpi_phmlen = rs_global->phmlen;
+ mpi_rotinc = rs_global->rot_inc;
+ }
+
+ mpi_t1 = MPI_Wtime();
+ MPI_Bcast(&opt_verbose, 1, MPI_INT, 0, mpi_ct.comm);
+ MPI_Bcast(&opt_debug, 1, MPI_INT, 0, mpi_ct.comm);
+ MPI_Bcast(&opt_trace, 1, MPI_INT, 0, mpi_ct.comm);
+ MPI_Bcast(&opt_filter, 1, MPI_INT, 0, mpi_ct.comm);
+ MPI_Bcast(&opt_interp, 1, MPI_INT, 0, mpi_ct.comm);
+ MPI_Bcast(&opt_filter_param, 1, MPI_DOUBLE, 0, mpi_ct.comm);
+ MPI_Bcast(&opt_interp_param, 1, MPI_INT, 0, mpi_ct.comm);
+ MPI_Bcast(&opt_backproj, 1, MPI_INT, 0, mpi_ct.comm);
+ MPI_Bcast(&mpi_ndet, 1, MPI_INT, 0, mpi_ct.comm);
+ MPI_Bcast(&mpi_nview, 1, MPI_INT, 0, mpi_ct.comm);
+ MPI_Bcast(&mpi_detinc, 1, MPI_DOUBLE, 0, mpi_ct.comm);
+ MPI_Bcast(&mpi_phmlen, 1, MPI_DOUBLE, 0, mpi_ct.comm);
+ MPI_Bcast(&mpi_rotinc, 1, MPI_DOUBLE, 0, mpi_ct.comm);
+ MPI_Bcast(&nx, 1, MPI_INT, 0, mpi_ct.comm);
+ MPI_Bcast(&ny, 1, MPI_INT, 0, mpi_ct.comm);
+ if (opt_verbose) {
+ mpi_t2 = MPI_Wtime();
+ mpi_t = mpi_t2 - mpi_t1;
+ MPI_Reduce(&mpi_t, &mpi_t_g, 1, MPI_DOUBLE, MPI_MAX, 0, mpi_ct.comm);
+ if (mpi_ct.my_rank == 0)
+ printf("Time to Bcast vars = %f secs, Max time = %f\n", mpi_t, mpi_t_g);
+ }
+
+ mpi_ct_calc_work_units(mpi_nview);
+
+ rs_local = raysum_create (NULL, mpi_ct.local_work_units[mpi_ct.my_rank], mpi_ndet);
+
+ rs_local->ndet = mpi_ndet;
+ rs_local->nview = mpi_nview;
+ rs_local->det_inc = mpi_detinc;
+ rs_local->phmlen = mpi_phmlen;
+ rs_local->rot_inc = mpi_rotinc;
+
+ if (opt_verbose)
+ mpi_t1 = MPI_Wtime();
+ mpi_scatter_rs(rs_global, rs_local, opt_debug);
+ if (opt_verbose) {
+ mpi_t2 = MPI_Wtime();
+ mpi_t = mpi_t2 - mpi_t1;
+ MPI_Reduce(&mpi_t, &mpi_t_g, 1, MPI_DOUBLE, MPI_MAX, 0, mpi_ct.comm);
+ if (mpi_ct.my_rank == 0)
+ printf("Time to scatter rs = %f secs, Max time = %f sec\n", mpi_t, mpi_t_g);
+ }
+
+ if (mpi_ct.my_rank == 0) {
+ im_global = image_create (im_filename, nx, ny);
+ sdf_add_label (LT_HISTORY, rs_global->remark, rs_global->calctime, im_global->dfp_2d->dfp);
+ sdf_add_empty_label (im_global->dfp_2d->dfp);
+ }
+ im_local = image_create (NULL, nx, ny);
+
+#else
+ rs_global = raysum_open (rs_name);
+ raysum_read (rs_global);
+ if (opt_verbose)
+ print_raysum_info(rs_global);
+
+ im_global = image_create (im_filename, nx, ny);
+ sdf_add_label (LT_HISTORY, rs_global->remark, rs_global->calctime, im_global->dfp_2d->dfp);
+ sdf_add_empty_label (im_global->dfp_2d->dfp);
+#endif
+
+#ifdef MPI_CT
+ mpi_t1 = MPI_Wtime();
+ image_reconst (im_local, rs_local, opt_filter, opt_filter_param,
+ opt_interp, opt_interp_param, opt_backproj, opt_trace);
+ mpi_t2 = MPI_Wtime();
+ mpi_t = mpi_t2 - mpi_t1;
+ MPI_Reduce(&mpi_t, &mpi_t_g, 1, MPI_DOUBLE, MPI_MAX, 0, mpi_ct.comm);
+ if (mpi_ct.my_rank == 0 && opt_verbose)
+ printf("Time to reconstruct = %f, Max time = %f\n", mpi_t, mpi_t_g);
+#else
+ image_reconst (im_global, rs_global, opt_filter, opt_filter_param,
+ opt_interp, opt_interp_param, opt_backproj, opt_trace);
+#endif
+
+#ifdef MPI_CT
+ if (opt_verbose)
+ mpi_t1 = MPI_Wtime();
+
+ for (ix = 0; ix < im_local->nx; ix++) {
+ void *recvbuf = NULL;
+ if (mpi_ct.my_rank == 0)
+ recvbuf = im_global->v[ix];
+
+ MPI_Reduce(im_local->v[ix], recvbuf, im_local->ny, MPI_FLOAT, MPI_SUM, 0, mpi_ct.comm);
+ }
+
+ if (opt_verbose) {
+ mpi_t2 = MPI_Wtime();
+ mpi_t = mpi_t2 - mpi_t1;
+ MPI_Reduce(&mpi_t, &mpi_t_g, 1, MPI_DOUBLE, MPI_MAX, 0, mpi_ct.comm);
+ if (mpi_ct.my_rank == 0)
+ printf("Time to reduce image = %f secs, max time = %f\n", mpi_t, mpi_t_g);
+ }
+
+ if (mpi_ct.my_rank == 0)
+ time_end = MPI_Wtime();
+#else
+ time_end = td_current_sec();
+#endif
+
+
+#ifdef MPI_CT
+ if (mpi_ct.my_rank == 0)
+#endif
+ {
+ raysum_close (rs_global);
+ strncpy (im_global->remark, remark, sizeof(im_global->remark));
+ im_global->calctime = time_end - time_start;
+ image_save (im_global);
+ if (opt_verbose)
+ fprintf (stdout, "Time active = %.2f\n", im_global->calctime);
+ }
+
+#ifdef MPI_CT
+ MPI_Finalize();
+#endif
+
+ return (0);
+}
+
+
+#ifdef MPI_CT
+static void mpi_scatter_rs (RAYSUM *rs_global, RAYSUM *rs_local, const int opt_debug)
+{
+ int iproc;
+ int end_work_unit;
+ int iw = 0;
+
+ if (mpi_ct.my_rank == 0) {
+ for (iproc = 0; iproc < mpi_ct.nproc; iproc++) {
+ end_work_unit = mpi_ct.start_work_unit[iproc] + mpi_ct.local_work_units[iproc] - 1;
+
+ for (iw = mpi_ct.start_work_unit[iproc]; iw <= end_work_unit; iw++) {
+ MPI_Send(&rs_global->view[iw]->ndet, 1, MPI_INT, iproc, 0, mpi_ct.comm);
+ MPI_Send(&rs_global->view[iw]->view_angle, 1, MPI_DOUBLE, iproc, 0, mpi_ct.comm);
+ MPI_Send(rs_global->view[iw]->detval, rs_global->ndet, MPI_FLOAT, iproc, 0, mpi_ct.comm);
+ }
+ }
+ }
+
+ if (opt_debug)
+ fprintf(stdout, "Receiving rs data in process %d\n", mpi_ct.my_rank);
+
+ end_work_unit = mpi_ct.local_work_units[mpi_ct.my_rank] - 1;
+ for (iw = 0; iw <= end_work_unit; iw++) {
+ MPI_Status status;
+
+ MPI_Recv(&rs_local->view[iw]->ndet, 1, MPI_INT, 0, 0, mpi_ct.comm, &status);
+ MPI_Recv(&rs_local->view[iw]->view_angle, 1, MPI_DOUBLE, 0, 0, mpi_ct.comm, &status);
+ MPI_Recv(rs_local->view[iw]->detval, rs_local->ndet, MPI_FLOAT, 0, 0, mpi_ct.comm, &status);
+ }
+ rs_local->nview = mpi_ct.local_work_units[mpi_ct.my_rank];
+ if (opt_debug) {
+ MPI_Barrier(MPI_COMM_WORLD);
+ fprintf(stdout, "Done with mpi_scatter_rs in process %2d\n", mpi_ct.my_rank);
+ }
+}
+
+#endif
+
+static void print_raysum_info(const RAYSUM *rs)
+{
+ printf ("Number of detectors: %d\n", rs->ndet);
+ printf (" Number of views: %d\n", rs->nview);
+ printf (" Remark: %s\n", rs->remark);
+ printf (" phmlen: %f\n", rs->phmlen);
+ printf (" det_start: %f\n", rs->det_start);
+ printf (" det_inc: %f\n", rs->det_inc);
+ printf (" rot_start: %f\n", rs->rot_start);
+ printf (" rot_inc: %f\n", rs->rot_inc);
+}
+
+#ifndef NO_MAIN
+int
+main (const int argc, char *const argv[])
+{
+ return (ctrec_main(argc, argv));
+}
+#endif
+
projects / ctsim.git / blobdiff