91av视频/亚洲h视频/操亚洲美女/外国一级黄色毛片 - 国产三级三级三级三级

資源簡介

matlab對點云數據進行曲面分析,對三維點云配準算法有很大的改進作用。

資源截圖

代碼片段和文件信息

function?[output_gaussian?output_mean?output_k1?output_k2]?=?MLS_curvature_computing(input_pnts?input_normals?eval_pnts?number_of_neighbor?gaussian_param)
%?Direct?computing?of?point-set?surface?curvatures??
%
%?[out_a??out_b??out_c??out_d]?=?MLS_curvature_computing?(in_1??in_2??in_3??in_4??in_5)
%
%?Description?:
%?Direct?computing?of?surface?curvatures?for?point-set?surfaces?based?on??
%?a?set?of?analytical?equations?derived?from?MLS.
%
%?Parameters?[IN?]:
%?in_1?:?input?synthetic/real?point?data?which?will?define?an?MLS?surface
%?in_2?:?corresponding?normals?of?the?input?synthetic/real?point?data
%?in_3?:?positions?where?to?evaluate?surface?curvatures
%?in_4?:?number?of?neighbor?points?which?will?contribute?to?the?curvature
%????????computing?at?each?evaluation?position
%?in_5?:?Gaussian?scale?parameter?that?determines?the?width?of?the?Gaussian
%????????kernel
%
%?Returns?[?OUT?]:
%?out_a?:?output?gaussian?curvatures
%?out_b?:?output?mean?curvatures
%?out_c?:?output?maximum?principal?curvatures??
%?out_d?:?output?minimum?principal?curvatures
%
%?Example?:
%?see?the?demo
%
%?References?:
%??Yang?P.?and?Qian?X.?“Direct?computing?of?surface?curvatures?for
%??point-set?surfaces“?Proceedings?of?2007?IEEE/Eurographics?Symposium?
%??on?Point-based?Graphics(PBG)?Prague?Czech?Republic?Sep.?2007.
%
%?Authors?:?Pinghai?Yang
%?Created?:?Sep.?25?2007
%?Version?:?1.0
%?Matlab?Version?:?7.0?(?Windows?)
%
%?Copyright?(c)?2007?CDM?Lab?Illinois?Institute?of?Technology??U.S.A.
%?%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%?Output?Gaussian?curvature
output_gaussian?=?zeros(size(eval_pnts2)size(eval_pnts3));
%?Output?Mean?curvature
output_mean?=?zeros(size(eval_pnts2)size(eval_pnts3));

for?i?=?1:size(eval_pnts2)
????for?j?=?1:size(eval_pnts3)

????????%?Coordinates?of?the?current?point
????????eval_pnt?=?eval_pnts(:ij);
????????neighbor_index?=?nearestneighbour(eval_pnt?input_pnts?‘NumberOfNeighbours‘?number_of_neighbor);
????????neighbor_pnts?=?input_pnts(:neighbor_index);

????????%?Difference?vectors?from?neighbor?points?to?the?evaluation?point?
????????diff_vec?=?repmat(eval_pnt?1?number_of_neighbor)?-?neighbor_pnts;

????????dist_squared?=?diff_vec(1:).*diff_vec(1:)?+?diff_vec(2:).*diff_vec(2:)?+?diff_vec(3:).*diff_vec(3:);
????????weight?=?exp(-?dist_squared?/?gaussian_param^2);

????????%?Delta_g?of?the?current?point
????????neighbor_normals?=?input_normals(:neighbor_index);
????????for?ii?=?1:3
????????????eval_normal(ii1)?=?sum(weight.*neighbor_normals(ii:));
????????end

????????normalized_eval_normal?=?eval_normal/norm(eval_normal);

????????projected_diff_vec?=?diff_vec(1:).*normalized_eval_normal(11)?+?diff_vec(2:).*normalized_eval_normal(21)...
????????????+?diff_vec(3:).*normalized_eval_normal(31);

????????%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
????????%delta_g
???

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2007-10-04?20:55??demo_MLS-My\
?????文件????????8400??2007-09-30?00:55??demo_MLS-My\demo_evaluation_data.txt
?????文件??????281617??2007-09-30?00:55??demo_MLS-My\demo_input_data.txt
?????文件???????11647??2007-09-30?01:18??demo_MLS-My\demo_resulting_curvatures.txt
?????文件????????7484??2007-09-30?01:16??demo_MLS-My\MLS_curvature_computing.m
?????文件????????1854??2007-09-30?01:27??demo_MLS-My\MLS_demo.m
?????文件????????1182??2007-09-30?01:29??demo_MLS-My\MLS_energy.asv
?????文件????????1196??2007-09-30?01:29??demo_MLS-My\MLS_energy.m
?????文件????????2000??2007-09-30?01:29??demo_MLS-My\MLS_projection.asv
?????文件????????2000??2007-09-30?01:31??demo_MLS-My\MLS_projection.m
?????文件????????9365??2006-11-14?23:30??demo_MLS-My\nearestneighbour.m
?????文件?????????975??2007-09-30?01:37??demo_MLS-My\readme.txt

評論

共有 條評論