/**
* Reads the recorded gesture data from the files and brings it in the format ready for training.
*/
vector<FeatureSet> GestureManagement::readData() {
// read all takes for each gesture
vector<FeatureSet> sets;
sets.clear();
for (int i=0; i<=NUMBER_OF_ROGGEN_SENSORS; ++i) {
FeatureSet s;
s.clear();
sets.push_back(s);
}
for (int f=0; f<config->getStrings("classification names").size(); ++f) {
if (config->getInt("verbosity") > 1) {
cout << "Training classification name number " << f << endl;
}
// cout << "Gesture: " << f << endl;
vector<float> varianceSums; // compute sums for every sensor within a gesture
varianceSums.clear();
for (int i=0; i<NUMBER_OF_ROGGEN_SENSORS; i++) {
varianceSums.push_back(0); // inital value
}
int sizeSum = 0;
// for (int i=1; i<=NUMBER_OF_TAKES; i++) { // for each of the 3 takes
for (int i=1; i<=config->getInt("number of takes"); ++i) {
// cout << "Take " << i << endl;
string fname = XML_SUBDIRECTORY+config->getStrings("classification names").at(f)+Helper::toString(i)+".xml";
// cout << "Filename: " << fname << endl;
if (!Helper::fileExists(fname.c_str())) {
cerr << fname << " not yet recorded!" << endl;
cerr << "No training possible" << endl;
sets.clear();
return sets;
} else {
vector<vector<int> > rd = convert(XmlFileHandling::readIntData(fname));
for (int sensor=0; sensor<NUMBER_OF_ROGGEN_SENSORS; ++sensor) { // for every sensor
// cout << "Sensor " << sensor << endl;
buffers.at(sensor)->clear();
buffers.at(sensor)->setUnlimited();
buffers.at(sensor)->put(RoggenBuffer::filter(0,config->getInts("IDs").at(sensor),rd));
maxGestureLength = Helper::getMax(maxGestureLength,buffers.at(sensor)->size());
FeatureSample fs;
fs.out = f;
fs.in.clear();
fs.in = extractFeatures(sensor);
sets.at(sensor).push_back(fs);
int size = buffers.at(sensor)->size();
sizeSum += size;
} // for every sensor
} // if fileexists
} // for every take
sizeSum /= config->getInt("number of takes") * NUMBER_OF_ROGGEN_SENSORS; // compute average size of one gesture
sizes.push_back(sizeSum); // store sizes (averages)
} // for every gesture
return sets;
}
void DatabaseSubsystem::getAvailableFeatures(Session& session,
const map<int, int>& clObjMap, FeatureSet& featureSet)
{
int ddType;
string featureName;
double featureParam1, featureParam2, featureParam3;
featureSet.clear();
ostringstream clObjIDs;
for (map<int, int>::const_iterator itr = clObjMap.begin();
itr != clObjMap.end(); ++itr)
{
if (itr != clObjMap.begin()) {
clObjIDs << ",";
}
clObjIDs << itr->first;
}
Statement stmt = (session <<
"SELECT DISTINCT "
" data_descriptor.type, data_feature.feature_name, "
" data_feature.feature_param1, data_feature.feature_param2, "
" data_feature.feature_param3 "
"FROM data_feature INNER JOIN data_descriptor "
"ON (data_feature.descr_id = data_descriptor.descr_id) "
"WHERE data_descriptor.descr_id IN ("
" SELECT descr_id FROM classification_object_data WHERE object_id IN ("
<< clObjIDs.str()
<< "))",
range(0, 1),
into(ddType), into(featureName), into(featureParam1),
into(featureParam2), into(featureParam3));
while (!stmt.done()) {
if (stmt.execute() == 1) {
featureSet.add(FeatureDescriptor(featureName,
(DataDescriptor::Type) ddType, featureParam1, featureParam2,
featureParam3));
}
}
}