资源简介
Matlab实现的经典icp点云数据配准算法,内含三个实例,二维平面下、三位平面下点云数据配准matlab实现程序

代码片段和文件信息
function [TRTTdata] = icp(modeldatamaxIterminItercritFunthres)
% ICP (iterative closest point) algorithm
%
% # point-to-point distance minimization
%
% # robust criterion function using IRLS (optional)
%
%
% Simple usage (least-squares minimization):
%
% [RTdata2] = icp(modeldata)
%
% ICP fits points in data to the points in model.
% (default) Fit with respect to minimize the sum of square
% errors with the closest model points and data points.
% (optional) Using a robust criterion function
%
% INPUT:
%
% model - matrix with model points [ X_1 X_2 ... X_M ]
% data - matrix with data points [ P_1 P_2 ... P_N ]
%
% OUTPUT:
%
% R - rotation matrix
% T - translation vector
% data2 - matrix with transformed data points [ P_1 P_2 ... P_N ]
%
% data2 = R*data + T
%
%
% Usage:
%
% [RTdata2] = icp(modeldatamaxIterminItercritFunthres)
%
% INPUT:
%
% maxIter - maximum number of iterations. Default = 100
%
% minIter - minimum number of iterations. Default = 5
%
% critFun - 0 Fit with respect to minimize the sum of square errors. (default)
% 1 Huber criterion function (robust)
% 2 Tukey‘s bi-weight criterion function (robust)
% 3 Cauchy criterion function (robust)
% 4 Welsch criterion function (robust)
%
% thres - error differens threshold to stop iterations. Default = 1e-5
%
% m-file can be downloaded for free at
% http://www.mathworks.com/matlabcentral/fileexchange/12627-iterative-closest-point-method
%
% icp version 1.6
%
% written by Per Bergstr?m 2016-12-11
%
% Reference:
%
% Bergstr?m P. and Edlund O. 2014 ‘Robust registration of point sets using iteratively reweighted least squares‘
% Computational Optimization and Applications vol 58 no. 3 pp. 543-561 10.1007/s10589-014-9643-2
%
% Check input arguments
if nargin<2
error(‘To few input arguments‘);
elseif nargin<6
thres=1e-5; % threshold to stop icp iterations
if nargin<5
critFun=0; % critFun method LS
if nargin<4
minIter=5; % min number of icp iterations
if nargin<3
maxIter=100; % max number of icp iterations
end
end
end
end
if or(isempty(model)isempty(data))
error(‘Something is wrong with the model points and data points‘);
end
% Use default values
if isempty(maxIter)
maxIter=100;
end
if isempty(minIter)
minIter=5;
end
if isempty(critFun)
critFun=0;
end
if isempty(thres)
thres=1e-5;
end
% Size of model points and data points
if (size(model2) mTranspose=true;
m=size(model2);
M=size(model1);
else
mTranspose=false;
m=size(model1);
M=size(model2);
end
if (size(data2) data=data‘;
end
if m~=size(
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
文件 1837 2020-05-14 18:11 icpexam2.m
文件 2613 2020-05-14 18:12 icpexam3.m
文件 8321 2020-05-14 18:14 icp.m
文件 767 2020-05-14 18:12 icpexam.m
----------- --------- ---------- ----- ----
13538 4
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