I@n*[EC
close all;clear all;clc wgY6D!Y
N=512;x=1:N; 9wL!D3e
{Q
y=1:N;[x,y]=meshgrid(x,y);R=240;r=90; QVIcb;&:}
z=zeros(N); gjW\
XY
for i=1:N X<(6T
for j=1:N Q |
if(sqrt((i-N/2)^2+(j-N/2)^2)<sqrt(R*R-r*r)) a9[mZVMgUK
z(i,j)=.25*((sqrt(R*R-(i-N/2).*(i-N/2)-(j-N/2).*(j-N/2))-r)); %%%%修改第一个乘号前面的数字 Y!SE;N&
end }>2t&+v+
end Z6
;Wd_
end >n]oB~P%
z=0.02*z; Da-u-_~
figure,mesh(z);xlabel('x'),ylabel('y'),zlabel('z') %%%物体的显示,三维 glv ;C/l
f0=0.01;%%%----------------光栅条纹的频率即周期的倒数1/T--------------------------%% 9Ei5z6Vk/+
a=2*pi*x*f0; s(t eQ\
cowx=(-1).*(-1).^floor(a/pi).*(2*a/pi-(2*floor(a/pi)+1)); ^6Yd}
sowx=(-1).^round(a/pi).*(2*a/pi-2*round(a/pi)); ?TDvCL
noise=0; R7lYu\mA
i01=0.5+0.5*cowx+noise.*rand(size(z));%%%-----------投影的正弦条纹图,以下分别为相移后的条纹图,4步相移,共4帧 M~uMY+>
i02=0.5-0.5*sowx+noise.*rand(size(z)); 6N"m?g*Z
d
i03=0.5-0.5*cowx+noise.*rand(size(z)); $=/rGpAk
i04=0.5+0.5*sowx+noise.*rand(size(z)); jz*0`9&_
figure,imshow(i01);%%%光栅条纹的图像 d$pYo)8o({
% axis off;imwrite(i01,'C:\Documents and Settings\Administrator\My Documents\My Pictures\1.bmp','bmp'); `M&P[.9Pz
figure,imshow(i02);%%%光栅条纹的图像 9I85EcT^4"
% axis off;imwrite(i02,'C:\Documents and Settings\Administrator\My Documents\My Pictures\2.bmp','bmp'); Us'Cs+5XcG
figure,imshow(i03);%%%光栅条纹的图像 G\R*#4cF
% axis off;imwrite(i03,'C:\Documents and Settings\Administrator\My Documents\My Pictures\3.bmp','bmp'); kP@HG<~
figure,imshow(i04);%%%光栅条纹的图像 `19qq]
% axis off;imwrite(i04,'C:\Documents and Settings\Administrator\My Documents\My Pictures\4.bmp','bmp'); gNqAj# m
% q2=-atan2((i01*sin(0*pi/4)+i02*sin(2*pi/4)+i03*sin(4*pi/4)+i04*sin(6*pi/4)),(i01*cos(0*pi/4)+i02*cos(2*pi/4)+i03*cos(4*pi/4)+i04*cos(6*pi/4))); e,(a6X
q2=atan2((i04-i02),(i01-i03)); Oukd_Ryf
figure,mesh(q2);xlabel('x'),ylabel('y'),zlabel('z')%-----------q2为通过公式计算出的相位,被截断在幅角主值范围内 C,fY.CeI
%%%-------------------------------------%% J,??x0GDx,
temp=ones(size(q2)); I!P4(3skAB
q21=LingXingUnwrap2(q2,temp,100,100);%%%--------------------进行相位展开,成为展开的相位,应该为一斜面--------------- E>E*ZZuhj
figure,mesh(q21); }MP>]8Aq
% q21=my_unwrap(q2); Xx_tpC?
b=2*pi*f0*x+2*pi*z; ?ty>}.c t
cowx=(-1).*(-1).^floor(b/pi).*(2*b/pi-(2*floor(b/pi)+1)); vDsF-u1
sowx=(-1).^round(b/pi).*(2*b/pi-2*round(b/pi)); k@yh+ v5
i1=0.5+0.5*cowx+noise.*rand(size(z));%%%%-------------投影到物体上的变形光栅像----------------------- e!GZSk
figure,imshow(i1)%%%携带物体信息的变形光栅条纹的图像 S<"oUdkz
% axis off;imwrite(i1,'C:\Documents and Settings\Administrator\My Documents\My Pictures\5.bmp','bmp'); k)cP! %z
i2=0.5-0.5*sowx+noise.*rand(size(z)); ! D$Ooamq
figure,imshow(i2)%%%携带物体信息的变形光栅条纹的图像 &=X.*H%
% axis off;imwrite(i2,'C:\Documents and Settings\Administrator\My Documents\My Pictures\6.bmp','bmp'); pr_>b`p6
i3=0.5-0.5*cowx+noise.*rand(size(z)); X3<K 1/<
figure,imshow(i3)%%%携带物体信息的变形光栅条纹的图像 w9MoT.kI}
% axis off;imwrite(i3,'C:\Documents and Settings\Administrator\My Documents\My Pictures\7.bmp','bmp'); / 2xSNalC
i4=0.5+0.5*sowx+noise.*rand(size(z)); J/ vK6cO\
figure,imshow(i4)%%%携带物体信息的变形光栅条纹的图像 qw<HY$3=
% axis off;imwrite(i4,'C:\Documents and Settings\Administrator\My Documents\My Pictures\8.bmp','bmp'); 7\Co`J>p2
%q1=-atan2((i1*sin(0*pi/4)+i2*sin(2*pi/4)+i3*sin(pi)+i4*sin(6*pi/4)),(i1*cos(0*pi/4)+i2*cos(2*pi/4)+i3*cos(pi)+i4*cos(6*pi/4))); HJIC<U
q1=atan2((i4-i2),(i1-i3)); Huc|6~X
figure,mesh(q1);xlabel('x'),ylabel('y'),zlabel('z') %-----------q1为通过公式计算出的携带物体信息的相位,被截断在幅角主值范围内 $#e1SS32
^XG*z?Tt
q11=LingXingUnwrap2(q1,temp,100,100);%%%------携带物体信息的连续相位分布,此图像应为斜面上有高度起伏的现象的一幅图------------------%% `PgdJrE
% q11=my_unwrap(q1); &dr@6-xaq
figure,mesh(q11); f"dSr
%%%------------------------------------%% x:fW~!Xc6
% qq=q11-q21; b=qq./(2*pi); y \D=Z
N@
% wu=qq./(2*pi)-z; DN_W.o
b=(q11-q21)./(2*pi); ?{6s58Q{
wu=(q11-q21)./(2*pi)-z; &l m#
%err2=max(max(wu)) y! ~qbh[
figure,mesh(q21);xlabel('x'),ylabel('y'),zlabel('z')%%%--------------------参考面展开的相位,应该为一斜面--------------- B2Z_]q$n*
figure,mesh(q11);xlabel('x'),ylabel('y'),zlabel('z')%%%------携带物体信息的连续相位分布,此图像应为斜面上有高度起伏的现象的一幅图---%% MG{l~|\x)
figure,mesh(b);xlabel('x'),ylabel('y'),zlabel('z')%%%恢复的物体 >&Y-u%}U
figure,mesh(wu);xlabel('x'),ylabel('y'),zlabel('z')%%%测量误差