6-_g1vq
close all;clear all;clc h2Nt@
N=512;x=1:N; `5?0yXK
y=1:N;[x,y]=meshgrid(x,y);R=240;r=90; ITw *m3
z=zeros(N); Zpkd8@g@
for i=1:N ?Te#lp;`~
for j=1:N H}F
UgA;
if(sqrt((i-N/2)^2+(j-N/2)^2)<sqrt(R*R-r*r)) /f1]U
LmC:
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 H%vfRl3rB
end ?pW1}:z
end 7! >0
end Qy" Jt ]O
z=0.02*z; qhxMO[f
figure,mesh(z);xlabel('x'),ylabel('y'),zlabel('z') %%%物体的显示,三维
)Ri!
f0=0.01;%%%----------------光栅条纹的频率即周期的倒数1/T--------------------------%% ]{6/6jl
a=2*pi*x*f0; f%o[eW#
cowx=(-1).*(-1).^floor(a/pi).*(2*a/pi-(2*floor(a/pi)+1)); *pwkv7Zh
sowx=(-1).^round(a/pi).*(2*a/pi-2*round(a/pi)); D#&9zR86F
noise=0; HXKM<E{j
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 {k3ItGQ_
i02=0.5-0.5*sowx+noise.*rand(size(z)); mBErU6?X,A
i03=0.5-0.5*cowx+noise.*rand(size(z)); f-|?He4O]
i04=0.5+0.5*sowx+noise.*rand(size(z)); UF!qp
figure,imshow(i01);%%%光栅条纹的图像 o(SPT?ao~
% axis off;imwrite(i01,'C:\Documents and Settings\Administrator\My Documents\My Pictures\1.bmp','bmp'); r&4Xf#QD6
figure,imshow(i02);%%%光栅条纹的图像 ]H !ru
% axis off;imwrite(i02,'C:\Documents and Settings\Administrator\My Documents\My Pictures\2.bmp','bmp'); L8h3kT
figure,imshow(i03);%%%光栅条纹的图像 R BHDfm'~7
% axis off;imwrite(i03,'C:\Documents and Settings\Administrator\My Documents\My Pictures\3.bmp','bmp'); @FN|=?8%
figure,imshow(i04);%%%光栅条纹的图像 n>, :*5"G
% axis off;imwrite(i04,'C:\Documents and Settings\Administrator\My Documents\My Pictures\4.bmp','bmp'); k5Cy/gR
% 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))); (& SU)Uvu
q2=atan2((i04-i02),(i01-i03)); LsWD^JE.
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 W9%v#;2
%%%-------------------------------------%% e&z@yy$
temp=ones(size(q2)); \.mVLLtG
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--------------- Pb'(Y
figure,mesh(q21); BwWSztJ+B
% q21=my_unwrap(q2); n/5T{ NfG
b=2*pi*f0*x+2*pi*z; jlj ge=#c2
cowx=(-1).*(-1).^floor(b/pi).*(2*b/pi-(2*floor(b/pi)+1)); xkDK5&V
sowx=(-1).^round(b/pi).*(2*b/pi-2*round(b/pi)); 1;( h0j
i1=0.5+0.5*cowx+noise.*rand(size(z));%%%%-------------投影到物体上的变形光栅像----------------------- >; MJm
figure,imshow(i1)%%%携带物体信息的变形光栅条纹的图像 Nf )YG!
% axis off;imwrite(i1,'C:\Documents and Settings\Administrator\My Documents\My Pictures\5.bmp','bmp'); i4|R0>b
i2=0.5-0.5*sowx+noise.*rand(size(z)); AaYH(2m-
figure,imshow(i2)%%%携带物体信息的变形光栅条纹的图像 -fPiHKJ
% axis off;imwrite(i2,'C:\Documents and Settings\Administrator\My Documents\My Pictures\6.bmp','bmp'); @6'~RD.
i3=0.5-0.5*cowx+noise.*rand(size(z)); ({j8|{)+
figure,imshow(i3)%%%携带物体信息的变形光栅条纹的图像 IADHe\.
% axis off;imwrite(i3,'C:\Documents and Settings\Administrator\My Documents\My Pictures\7.bmp','bmp'); &K0b3AWc
i4=0.5+0.5*sowx+noise.*rand(size(z)); GmR3
a
figure,imshow(i4)%%%携带物体信息的变形光栅条纹的图像 We{@0K/O
% axis off;imwrite(i4,'C:\Documents and Settings\Administrator\My Documents\My Pictures\8.bmp','bmp'); F
`o9GLxM}
%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))); U)8yd,qG[%
q1=atan2((i4-i2),(i1-i3)); j$q5m 24L
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 j2Dw7"f3
p Run5 )7
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------------------%% @??3d9I
% q11=my_unwrap(q1); CK n2ZL
figure,mesh(q11); "HJ^>%ia
%%%------------------------------------%% 0fewMS*
% qq=q11-q21; b=qq./(2*pi); BjfVNF;hk:
% wu=qq./(2*pi)-z; :+/8n+@#
b=(q11-q21)./(2*pi); 9iG&9tB@
wu=(q11-q21)./(2*pi)-z; 6
^3RfF^W
%err2=max(max(wu)) [bHm-X]
figure,mesh(q21);xlabel('x'),ylabel('y'),zlabel('z')%%%--------------------参考面展开的相位,应该为一斜面--------------- *eoH"UFYQ#
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---%% Fy{yg]O"
figure,mesh(b);xlabel('x'),ylabel('y'),zlabel('z')%%%恢复的物体 R0INpF';
figure,mesh(wu);xlabel('x'),ylabel('y'),zlabel('z')%%%测量误差