void cvMatch2MyMatch(const DMatchVec& cvMatch , Matching& myMatch) {
int numMatch = cvMatch.size();
myMatch.reserve(numMatch);
for (int i = 0; i < numMatch; i++) {
myMatch.add(cvMatch[i].queryIdx, cvMatch[i].trainIdx, cvMatch[i].distance);
}
}
// Remove matches for which NN ratio is > than threshold
// return the number of removed points
int RobustMatcher::ratioTest(const DMatchVec2 &matches, DMatchVec &good_matches,
const KeyPointVec &kpts1, KeyPointVec &kpts1_out,
const KeyPointVec &kpts2, KeyPointVec &kpts2_out)
{
for(size_t i = 0; i < matches.size(); i++)
{
cv::DMatch first = matches[i][0];
float dist1 = matches[i][0].distance;
float dist2 = matches[i][1].distance;
if(dist1 < nn_match_ratio_ * dist2) {
kpts1_out.push_back(kpts1[first.queryIdx]);
kpts2_out.push_back(kpts2[first.trainIdx]);
good_matches.push_back(first);
}
}
return static_cast<int>(good_matches.size());
}