2 ///////////////////////////////////////////////////////////////////////////
3 // This program is free software: you can redistribute it and/or modify //
4 // it under the terms of the version 3 of the GNU General Public License //
5 // as published by the Free Software Foundation. //
7 // This program is distributed in the hope that it will be useful, but //
8 // WITHOUT ANY WARRANTY; without even the implied warranty of //
9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU //
10 // General Public License for more details. //
12 // You should have received a copy of the GNU General Public License //
13 // along with this program. If not, see <http://www.gnu.org/licenses/>. //
15 // Written by and Copyright (C) Francois Fleuret //
16 // Contact <francois.fleuret@idiap.ch> for comments & bug reports //
17 ///////////////////////////////////////////////////////////////////////////
21 // Takes the graph description file as input and produces a dot file.
23 // EXAMPLE: ./mtp ./graph2.txt | dot -T pdf -o- | xpdf -
33 //////////////////////////////////////////////////////////////////////
35 scalar_t detection_score(int true_label, scalar_t flip_noise) {
36 if((true_label > 0) == (drand48() < flip_noise)) {
37 return 1.0 + 0.2 * (drand48() - 0.5);
39 return - 1.0 + 0.2 * (drand48() - 0.5);
43 int main(int argc, char **argv) {
45 int nb_time_steps = 20;
46 int motion_amplitude = 1;
48 Tracker *tracker = new Tracker(nb_time_steps, nb_locations);
50 for(int l = 0; l < nb_locations; l++) {
51 for(int k = 0; k < nb_locations; k++) {
52 tracker->set_allowed_motion(l, k, abs(l - k) <= motion_amplitude);
54 tracker->set_as_exit(0, 1);
55 tracker->set_as_entrance(0, 1);
58 tracker->build_graph();
60 for(int r = 0; r < 10; r++) {
61 cout << "* ROUND " << r << endl;
63 // We generate synthetic detection scores at location
64 // nb_locations/2, with 10% false detection (FP or FN)
66 for(int t = 0; t < nb_time_steps; t++) {
67 for(int l = 0; l < nb_locations; l++) {
68 tracker->set_detection_score(t, l, detection_score(-1, 0.9));
70 tracker->set_detection_score(t, nb_locations/2, detection_score(1, 0.9));
75 for(int t = 0; t < tracker->nb_trajectories(); t++) {
78 << " [starting " << tracker->trajectory_entrance_time(t) << "]";
79 for(int u = 0; u < tracker->trajectory_duration(t); u++) {
80 cout << " " << tracker->trajectory_location(t, u);