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00040 #ifndef PCL_REGISTRATION_IMPL_CORRESPONDENCE_TYPES_H_
00041 #define PCL_REGISTRATION_IMPL_CORRESPONDENCE_TYPES_H_
00042
00043 #include <limits>
00044 #include <pcl/registration/eigen.h>
00045
00047 inline void
00048 pcl::registration::getCorDistMeanStd (const pcl::Correspondences &correspondences, double &mean, double &stddev)
00049 {
00050 if (correspondences.empty ())
00051 return;
00052
00053 double sum = 0, sq_sum = 0;
00054
00055 for (size_t i = 0; i < correspondences.size (); ++i)
00056 {
00057 sum += correspondences[i].distance;
00058 sq_sum += correspondences[i].distance * correspondences[i].distance;
00059 }
00060 mean = sum / static_cast<double> (correspondences.size ());
00061 double variance = (sq_sum - sum * sum / static_cast<double> (correspondences.size ())) / static_cast<double> (correspondences.size () - 1);
00062 stddev = sqrt (variance);
00063 }
00064
00066 inline void
00067 pcl::registration::getQueryIndices (const pcl::Correspondences& correspondences, std::vector<int>& indices)
00068 {
00069 indices.resize (correspondences.size ());
00070 for (size_t i = 0; i < correspondences.size (); ++i)
00071 indices[i] = correspondences[i].index_query;
00072 }
00073
00075 inline void
00076 pcl::registration::getMatchIndices (const pcl::Correspondences& correspondences, std::vector<int>& indices)
00077 {
00078 indices.resize (correspondences.size ());
00079 for (size_t i = 0; i < correspondences.size (); ++i)
00080 indices[i] = correspondences[i].index_match;
00081 }
00082
00083 #endif