Ejemplo n.º 1
0
int main(int argc, char** argv) {
  // default values:
  double res = 0.1;

  if (argc < 2)
    printUsage(argv[0]);

  string graphFilename = std::string(argv[1]);

  double maxrange = -1;
  int max_scan_no = -1;
  int skip_scan_eval = 5;

  int arg = 1;
  while (++arg < argc) {
    if (! strcmp(argv[arg], "-i"))
      graphFilename = std::string(argv[++arg]);
    else if (! strcmp(argv[arg], "-res"))
      res = atof(argv[++arg]);
    else if (! strcmp(argv[arg], "-m"))
      maxrange = atof(argv[++arg]);
    else if (! strcmp(argv[arg], "-n"))
      max_scan_no = atoi(argv[++arg]);
    else {
      printUsage(argv[0]);
    }
  }

  cout << "\nReading Graph file\n===========================\n";
  ScanGraph* graph = new ScanGraph();
  if (!graph->readBinary(graphFilename))
    exit(2);
  
  size_t num_points_in_graph = 0;
  if (max_scan_no > 0) {
    num_points_in_graph = graph->getNumPoints(max_scan_no-1);
    cout << "\n Data points in graph up to scan " << max_scan_no << ": " << num_points_in_graph << endl;
  }
  else {
    num_points_in_graph = graph->getNumPoints();
    cout << "\n Data points in graph: " << num_points_in_graph << endl;
  }

  cout << "\nCreating tree\n===========================\n";
  OcTree* tree = new OcTree(res);

  size_t numScans = graph->size();
  unsigned int currentScan = 1;
  for (ScanGraph::iterator scan_it = graph->begin(); scan_it != graph->end(); scan_it++) {

    if (currentScan % skip_scan_eval != 0){
      if (max_scan_no > 0) cout << "("<<currentScan << "/" << max_scan_no << ") " << flush;
      else cout << "("<<currentScan << "/" << numScans << ") " << flush;
      tree->insertPointCloud(**scan_it, maxrange);
    } else
      cout << "(SKIP) " << flush;

    if ((max_scan_no > 0) && (currentScan == (unsigned int) max_scan_no))
      break;

    currentScan++;
  }

  tree->expand();

  
  cout << "\nEvaluating scans\n===========================\n";
  currentScan = 1;
  size_t num_points = 0;
  size_t num_voxels_correct = 0;
  size_t num_voxels_wrong = 0;
  size_t num_voxels_unknown = 0;


  for (ScanGraph::iterator scan_it = graph->begin(); scan_it != graph->end(); scan_it++) {

    if (currentScan % skip_scan_eval == 0){
      if (max_scan_no > 0) cout << "("<<currentScan << "/" << max_scan_no << ") " << flush;
      else cout << "("<<currentScan << "/" << numScans << ") " << flush;


      pose6d frame_origin = (*scan_it)->pose;
      point3d sensor_origin = frame_origin.inv().transform((*scan_it)->pose.trans());

      // transform pointcloud:
      Pointcloud scan (*(*scan_it)->scan);
      scan.transform(frame_origin);
      point3d origin = frame_origin.transform(sensor_origin);

      KeySet free_cells, occupied_cells;
      tree->computeUpdate(scan, origin, free_cells, occupied_cells, maxrange);

      num_points += scan.size();

      // count free cells
      for (KeySet::iterator it = free_cells.begin(); it != free_cells.end(); ++it) {
        OcTreeNode* n = tree->search(*it);
        if (n){
          if (tree->isNodeOccupied(n))
            num_voxels_wrong++;
          else
            num_voxels_correct++;
        } else
          num_voxels_unknown++;
      } // count occupied cells
      for (KeySet::iterator it = occupied_cells.begin(); it != occupied_cells.end(); ++it) {
        OcTreeNode* n = tree->search(*it);
        if (n){
          if (tree->isNodeOccupied(n))
            num_voxels_correct++;
          else
            num_voxels_wrong++;
        } else
          num_voxels_unknown++;
      }


    }

    if ((max_scan_no > 0) && (currentScan == (unsigned int) max_scan_no))
      break;

    currentScan++;


  }

  cout << "\nFinished evaluating " << num_points <<"/"<< num_points_in_graph << " points.\n"
      <<"Voxels correct: "<<num_voxels_correct<<" #wrong: " <<num_voxels_wrong << " #unknown: " <<num_voxels_unknown
      <<". % correct: "<< num_voxels_correct/double(num_voxels_correct+num_voxels_wrong)<<"\n\n";


  delete graph;
  delete tree;
  
  return 0;
}
Ejemplo n.º 2
0
int main(int argc, char** argv) {
  // default values:
  double res = 0.1;
  string graphFilename = "";
  string treeFilename = "";
  double maxrange = -1;
  int max_scan_no = -1;
  bool detailedLog = false;
  bool simpleUpdate = false;
  bool discretize = false;
  unsigned char compression = 1;

  // get default sensor model values:
  OcTree emptyTree(0.1);
  double clampingMin = emptyTree.getClampingThresMin();
  double clampingMax = emptyTree.getClampingThresMax();
  double probMiss = emptyTree.getProbMiss();
  double probHit = emptyTree.getProbHit();


  timeval start; 
  timeval stop; 

  int arg = 0;
  while (++arg < argc) {
    if (! strcmp(argv[arg], "-i"))
      graphFilename = std::string(argv[++arg]);
    else if (!strcmp(argv[arg], "-o"))
      treeFilename = std::string(argv[++arg]);
    else if (! strcmp(argv[arg], "-res") && argc-arg < 2)
      printUsage(argv[0]);
    else if (! strcmp(argv[arg], "-res"))
      res = atof(argv[++arg]);
    else if (! strcmp(argv[arg], "-log"))
      detailedLog = true;
    else if (! strcmp(argv[arg], "-simple"))
      simpleUpdate = true;
    else if (! strcmp(argv[arg], "-discretize"))
      discretize = true;
    else if (! strcmp(argv[arg], "-compress"))
      OCTOMAP_WARNING("Argument -compress no longer has an effect, incremental pruning is done during each insertion.\n");
    else if (! strcmp(argv[arg], "-compressML"))
      compression = 2;
    else if (! strcmp(argv[arg], "-m"))
      maxrange = atof(argv[++arg]);
    else if (! strcmp(argv[arg], "-n"))
      max_scan_no = atoi(argv[++arg]);
    else if (! strcmp(argv[arg], "-clamping") && (argc-arg < 3))
      printUsage(argv[0]);
    else if (! strcmp(argv[arg], "-clamping")){
      clampingMin = atof(argv[++arg]);
      clampingMax = atof(argv[++arg]);
    }
    else if (! strcmp(argv[arg], "-sensor") && (argc-arg < 3))
      printUsage(argv[0]);
    else if (! strcmp(argv[arg], "-sensor")){
      probMiss = atof(argv[++arg]);
      probHit = atof(argv[++arg]);
    }
    else {
      printUsage(argv[0]);
    }
  }

  if (graphFilename == "" || treeFilename == "")
    printUsage(argv[0]);

  // verify input:
  if (res <= 0.0){
    OCTOMAP_ERROR("Resolution must be positive");
    exit(1);
  }

  if (clampingMin >= clampingMax || clampingMin < 0.0 || clampingMax > 1.0){
    OCTOMAP_ERROR("Error in clamping values:  0.0 <= [%f] < [%f] <= 1.0\n", clampingMin, clampingMax);
    exit(1);
  }

  if (probMiss >= probHit || probMiss < 0.0 || probHit > 1.0){
    OCTOMAP_ERROR("Error in sensor model (hit/miss prob.):  0.0 <= [%f] < [%f] <= 1.0\n", probMiss, probHit);
    exit(1);
  }


  std::string treeFilenameOT = treeFilename + ".ot";
  std::string treeFilenameMLOT = treeFilename + "_ml.ot";

  cout << "\nReading Graph file\n===========================\n";
  ScanGraph* graph = new ScanGraph();
  if (!graph->readBinary(graphFilename))
    exit(2);

  unsigned int num_points_in_graph = 0;
  if (max_scan_no > 0) {
    num_points_in_graph = graph->getNumPoints(max_scan_no-1);
    cout << "\n Data points in graph up to scan " << max_scan_no << ": " << num_points_in_graph << endl;
  }
  else {
    num_points_in_graph = graph->getNumPoints();
    cout << "\n Data points in graph: " << num_points_in_graph << endl;
  }

  // transform pointclouds first, so we can directly operate on them later
  for (ScanGraph::iterator scan_it = graph->begin(); scan_it != graph->end(); scan_it++) {

    pose6d frame_origin = (*scan_it)->pose;
    point3d sensor_origin = frame_origin.inv().transform((*scan_it)->pose.trans());

    (*scan_it)->scan->transform(frame_origin);
    point3d transformed_sensor_origin = frame_origin.transform(sensor_origin);
    (*scan_it)->pose = pose6d(transformed_sensor_origin, octomath::Quaternion());

  }


  std::ofstream logfile;
  if (detailedLog){
    logfile.open((treeFilename+".log").c_str());
    logfile << "# Memory of processing " << graphFilename << " over time\n";
    logfile << "# Resolution: "<< res <<"; compression: " << int(compression) << "; scan endpoints: "<< num_points_in_graph << std::endl;
    logfile << "# [scan number] [bytes octree] [bytes full 3D grid]\n";
  }



  cout << "\nCreating tree\n===========================\n";
  OcTree* tree = new OcTree(res);

  tree->setClampingThresMin(clampingMin);
  tree->setClampingThresMax(clampingMax);
  tree->setProbHit(probHit);
  tree->setProbMiss(probMiss);


  gettimeofday(&start, NULL);  // start timer
  unsigned int numScans = graph->size();
  unsigned int currentScan = 1;
  for (ScanGraph::iterator scan_it = graph->begin(); scan_it != graph->end(); scan_it++) {
    if (max_scan_no > 0) cout << "("<<currentScan << "/" << max_scan_no << ") " << flush;
    else cout << "("<<currentScan << "/" << numScans << ") " << flush;

    if (simpleUpdate)
      tree->insertPointCloudRays((*scan_it)->scan, (*scan_it)->pose.trans(), maxrange);
    else
      tree->insertPointCloud((*scan_it)->scan, (*scan_it)->pose.trans(), maxrange, false, discretize);

    if (compression == 2){
      tree->toMaxLikelihood();
      tree->prune();
    }

    if (detailedLog)
      logfile << currentScan << " " << tree->memoryUsage() << " " << tree->memoryFullGrid() << "\n";

    if ((max_scan_no > 0) && (currentScan == (unsigned int) max_scan_no))
      break;

    currentScan++;
  }
  gettimeofday(&stop, NULL);  // stop timer
  
  double time_to_insert = (stop.tv_sec - start.tv_sec) + 1.0e-6 *(stop.tv_usec - start.tv_usec);

  // get rid of graph in mem before doing anything fancy with tree (=> memory)
  delete graph;
  if (logfile.is_open())
    logfile.close();



  cout << "\nDone building tree.\n\n";
  cout << "time to insert scans: " << time_to_insert << " sec" << endl;
  cout << "time to insert 100.000 points took: " << time_to_insert/ ((double) num_points_in_graph / 100000) << " sec (avg)" << endl << endl;


  std::cout << "Pruned tree (lossless compression)\n" << "===========================\n";
  outputStatistics(tree);

  tree->write(treeFilenameOT);

  std::cout << "Pruned max-likelihood tree (lossy compression)\n" << "===========================\n";
  tree->toMaxLikelihood();
  tree->prune();
  outputStatistics(tree);


  cout << "\nWriting tree files\n===========================\n";
  tree->write(treeFilenameMLOT);
  std::cout << "Full Octree (pruned) written to "<< treeFilenameOT << std::endl;
  std::cout << "Full Octree (max.likelihood, pruned) written to "<< treeFilenameMLOT << std::endl;
  tree->writeBinary(treeFilename);
  std::cout << "Bonsai tree written to "<< treeFilename << std::endl;
  cout << endl;

  delete tree;

  exit(0);
}