l2[{T^
close all;clear all;clc }_GI%+t
N=512;x=1:N; Uc>$w?oA
y=1:N;[x,y]=meshgrid(x,y);R=240;r=90; ^+b ??K
z=zeros(N); jJU9~5i?
for i=1:N 9EI Oa/*
for j=1:N {S2?
}
if(sqrt((i-N/2)^2+(j-N/2)^2)<sqrt(R*R-r*r)) ZL{\M|@jz
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 E>2~cC*
end X@cO`P
end 8&2W^f5
end Gj9WUv[P
z=0.02*z; G;k#06
figure,mesh(z);xlabel('x'),ylabel('y'),zlabel('z') %%%物体的显示,三维 8 "5^mj
f0=0.01;%%%----------------光栅条纹的频率即周期的倒数1/T--------------------------%% D @bnm
s
a=2*pi*x*f0; t.YY?5l
cowx=(-1).*(-1).^floor(a/pi).*(2*a/pi-(2*floor(a/pi)+1)); !GL
kAV
sowx=(-1).^round(a/pi).*(2*a/pi-2*round(a/pi)); 6'YsSde".
noise=0; 1w|C+m/(
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+ljg&fy
i02=0.5-0.5*sowx+noise.*rand(size(z)); fRT4,;
i03=0.5-0.5*cowx+noise.*rand(size(z)); y?4%eD
i04=0.5+0.5*sowx+noise.*rand(size(z)); y/d/#}\:
figure,imshow(i01);%%%光栅条纹的图像 "pLWJvj6-
% axis off;imwrite(i01,'C:\Documents and Settings\Administrator\My Documents\My Pictures\1.bmp','bmp'); [<H'JsJl
figure,imshow(i02);%%%光栅条纹的图像 2zQ62t}
% axis off;imwrite(i02,'C:\Documents and Settings\Administrator\My Documents\My Pictures\2.bmp','bmp'); ?r"QJa>
figure,imshow(i03);%%%光栅条纹的图像 R-\a3q
% axis off;imwrite(i03,'C:\Documents and Settings\Administrator\My Documents\My Pictures\3.bmp','bmp'); [ _Nw5_
figure,imshow(i04);%%%光栅条纹的图像 20Rj
Rd
% axis off;imwrite(i04,'C:\Documents and Settings\Administrator\My Documents\My Pictures\4.bmp','bmp'); LH_rc
% 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))); @}[yC['
q2=atan2((i04-i02),(i01-i03)); Yj-JB
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 G:k]tZ*`
%%%-------------------------------------%% zv>3Tc0R
temp=ones(size(q2)); (|kcSnF0
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--------------- |2'u@<(Z/
figure,mesh(q21); )!tqock*v
% q21=my_unwrap(q2); KDQqN]rg
b=2*pi*f0*x+2*pi*z; /%4wm?(eA
cowx=(-1).*(-1).^floor(b/pi).*(2*b/pi-(2*floor(b/pi)+1)); L2GUrf
sowx=(-1).^round(b/pi).*(2*b/pi-2*round(b/pi)); $MPh\T
i1=0.5+0.5*cowx+noise.*rand(size(z));%%%%-------------投影到物体上的变形光栅像----------------------- vC1D}=Fp
figure,imshow(i1)%%%携带物体信息的变形光栅条纹的图像 "jFRGgd79
% axis off;imwrite(i1,'C:\Documents and Settings\Administrator\My Documents\My Pictures\5.bmp','bmp'); y53f73Cg
i2=0.5-0.5*sowx+noise.*rand(size(z)); piv/QP-X
figure,imshow(i2)%%%携带物体信息的变形光栅条纹的图像 BZr$x8%ki
% axis off;imwrite(i2,'C:\Documents and Settings\Administrator\My Documents\My Pictures\6.bmp','bmp'); 40ZHDtIu<
i3=0.5-0.5*cowx+noise.*rand(size(z)); ^xZ o.P
figure,imshow(i3)%%%携带物体信息的变形光栅条纹的图像 npD`9ff
% axis off;imwrite(i3,'C:\Documents and Settings\Administrator\My Documents\My Pictures\7.bmp','bmp'); |)'6U3
i4=0.5+0.5*sowx+noise.*rand(size(z)); %hnv
go:^g
figure,imshow(i4)%%%携带物体信息的变形光栅条纹的图像 ML9nfB^z!
% axis off;imwrite(i4,'C:\Documents and Settings\Administrator\My Documents\My Pictures\8.bmp','bmp'); #x^dR-@
%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))); @s[Vtw%f
q1=atan2((i4-i2),(i1-i3));
Q+ tUxa+
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 9PZY](/
h'D-e5i
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------------------%% .>A`FqV$~+
% q11=my_unwrap(q1); k_$9cVA
figure,mesh(q11); ]u\K}n6[q
%%%------------------------------------%% 1>wQ&{
% qq=q11-q21; b=qq./(2*pi); gs?=yNL
% wu=qq./(2*pi)-z; iJH;OV;P
b=(q11-q21)./(2*pi); PRo;NE
wu=(q11-q21)./(2*pi)-z; ud}B#{6
%err2=max(max(wu)) XC NM
figure,mesh(q21);xlabel('x'),ylabel('y'),zlabel('z')%%%--------------------参考面展开的相位,应该为一斜面--------------- :p6.v>s8
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---%% N=hhuKt]
figure,mesh(b);xlabel('x'),ylabel('y'),zlabel('z')%%%恢复的物体 {y0 `p1
figure,mesh(wu);xlabel('x'),ylabel('y'),zlabel('z')%%%测量误差