[Olena-patches] 3307: Update icp.

https://svn.lrde.epita.fr/svn/oln/trunk/milena Index: ChangeLog from Thierry Geraud &lt;thierry.geraud(a)lrde.epita.fr&gt; Update icp. * mln/registration/icp2.hh (remove_too_far_sites): Factor code and change threshold. icp2.hh | 35 ++++++++++++++++++++++++++++------- 1 file changed, 28 insertions(+), 7 deletions(-) Index: mln/registration/icp2.hh --- mln/registration/icp2.hh (revision 3306) +++ mln/registration/icp2.hh (working copy) @@ -67,6 +67,7 @@ #include <mln/core/image/extension_fun.hh> #include <mln/accu/histo.hh> +#include <mln/accu/sum.hh> #include <mln/debug/histo.hh> @@ -278,14 +279,37 @@ template <typename P, typename F> p_array<P> - remove_too_far_sites(image3d<value::rgb8>& out, const p_array<P>& P_bak, + remove_too_far_sites(image3d<value::rgb8>& out, const p_array<P>& P_, const F& closest_point, const std::pair<algebra::quat,mln_vec(P)>& pair, const p_array<P>& X, p_array<P>& removed_set, unsigned r) { - float sd = compute_standard_deviation(P_bak, pair, closest_point); + mln_piter(p_array<P>) p(P_); + accu::histo<value::int_u8> h; +// float sd = compute_standard_deviation(P_, pair, closest_point); + + float sd; + int d_min, d_max; + { + accu::sum<float> s, s2; + for_all(p) + { + vec3d_f Pk_i = pair.first.rotate(p.to_vec()) + pair.second; + unsigned d_i = closest_point.dmap_X_(Pk_i); + h.take(d_i); + s.take(d_i); + s2.take(d_i * d_i); + } + float mean = s / P_.nsites(); + sd = std::sqrt(s2 / P_.nsites() - mean * mean); + d_min = int(mean - sd); + d_max = int(mean + sd); + } + + std::cout << "Standard deviation = " << sd << std::endl; + std::cout << "d thresholds = " << d_min << ' ' << d_max << std::endl; p_array<P> tmp; unsigned removed = 0; @@ -293,16 +317,13 @@ data::fill(out, literal::white); data::fill((out | X).rw(), literal::black); - accu::histo<value::int_u8> h; - mln_piter(p_array<P>) p(P_bak); for_all(p) { vec3d_f Pk_i = pair.first.rotate(p.to_vec()) + pair.second; vec3d_f Yk_i = closest_point(Pk_i).to_vec(); - float norm = norm::l2_distance(Yk_i, Pk_i); - h.take(closest_point.dmap_X_(Pk_i)); - if (norm < sd && norm > sd / 2) + int d_i = closest_point.dmap_X_(Pk_i); + if (d_i >= d_min && d_i <= d_max) { tmp.append(p); out(Pk_i) = literal::green;