bool Engine::continueRendering() const
{
auto frameBuffer = _frameBuffers[0];
return _parametersManager.getAnimationParameters().isPlaying() ||
(frameBuffer->getAccumulation() &&
(frameBuffer->numAccumFrames() <
_parametersManager.getRenderingParameters().getMaxAccumFrames()));
}
real calcMAP() const {
real mAP = 0.0;
size_t count = 0;
for (map<size_t, size_t>::const_iterator it = numPos_.begin();
it != numPos_.end();
++it) {
size_t label = it->first;
size_t labelNumPos = it->second;
if (labelNumPos == 0 || allTruePos_.find(label) == allTruePos_.end())
continue;
vector<pair<real, size_t>> labelTruePos = allTruePos_.find(label)->second;
vector<pair<real, size_t>> labelFalsePos =
allFalsePos_.find(label)->second;
// Compute average precision.
vector<size_t> tpCumSum;
getAccumulation(labelTruePos, &tpCumSum);
vector<size_t> fpCumSum;
getAccumulation(labelFalsePos, &fpCumSum);
std::vector<real> precision, recall;
size_t num = tpCumSum.size();
// Compute Precision.
for (size_t i = 0; i < num; ++i) {
CHECK_LE(tpCumSum[i], labelNumPos);
precision.push_back(static_cast<real>(tpCumSum[i]) /
static_cast<real>(tpCumSum[i] + fpCumSum[i]));
recall.push_back(static_cast<real>(tpCumSum[i]) / labelNumPos);
}
// VOC2007 style
if (apType_ == "11point") {
vector<real> maxPrecisions(11, 0.0);
int startIdx = num - 1;
for (int j = 10; j >= 0; --j)
for (int i = startIdx; i >= 0; --i) {
if (recall[i] < j / 10.) {
startIdx = i;
if (j > 0) maxPrecisions[j - 1] = maxPrecisions[j];
break;
} else {
if (maxPrecisions[j] < precision[i])
maxPrecisions[j] = precision[i];
}
}
for (int j = 10; j >= 0; --j) mAP += maxPrecisions[j] / 11;
++count;
} else if (apType_ == "Integral") {
// Nature integral
real averagePrecisions = 0.;
real prevRecall = 0.;
for (size_t i = 0; i < num; ++i) {
if (fabs(recall[i] - prevRecall) > 1e-6)
averagePrecisions += precision[i] * fabs(recall[i] - prevRecall);
prevRecall = recall[i];
}
mAP += averagePrecisions;
++count;
} else {
LOG(FATAL) << "Unkown ap version: " << apType_;
}
}
if (count != 0) mAP /= count;
return mAP * 100;
}
