71AYDO
close all;clear all;clc !xR9I0V5
N=512;x=1:N; 9%NsW3|
y=1:N;[x,y]=meshgrid(x,y);R=240;r=90; ;4b=/1M'
z=zeros(N); L(Twclrb
for i=1:N O-UA2?N@j
for j=1:N #>:S&R?2t
if(sqrt((i-N/2)^2+(j-N/2)^2)<sqrt(R*R-r*r)) EFVZAY"+!;
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 A. tGr(r
end 4<UAT|L^`
end 0F- +)S?M[
end b~tu;:
z=0.02*z; dg#Pb@7a
figure,mesh(z);xlabel('x'),ylabel('y'),zlabel('z') %%%物体的显示,三维 M"s:*c_6
f0=0.01;%%%----------------光栅条纹的频率即周期的倒数1/T--------------------------%% 7Rtjm
a=2*pi*x*f0; ;Krs*3
s
cowx=(-1).*(-1).^floor(a/pi).*(2*a/pi-(2*floor(a/pi)+1)); (#>X*~6
sowx=(-1).^round(a/pi).*(2*a/pi-2*round(a/pi)); .,qh,m\Fo
noise=0; v07A3oj
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 #P}n+w_@
i02=0.5-0.5*sowx+noise.*rand(size(z)); o@360#njF
i03=0.5-0.5*cowx+noise.*rand(size(z)); %$ o[,13=
i04=0.5+0.5*sowx+noise.*rand(size(z)); ]5a3e+
figure,imshow(i01);%%%光栅条纹的图像 .K4)#oC
% axis off;imwrite(i01,'C:\Documents and Settings\Administrator\My Documents\My Pictures\1.bmp','bmp'); zJ}abo6rVw
figure,imshow(i02);%%%光栅条纹的图像 3p HI+a
% axis off;imwrite(i02,'C:\Documents and Settings\Administrator\My Documents\My Pictures\2.bmp','bmp'); <Bn0wr8)\
figure,imshow(i03);%%%光栅条纹的图像 #0h}{y
E
% axis off;imwrite(i03,'C:\Documents and Settings\Administrator\My Documents\My Pictures\3.bmp','bmp'); *^G,
figure,imshow(i04);%%%光栅条纹的图像 =BR+J9
% axis off;imwrite(i04,'C:\Documents and Settings\Administrator\My Documents\My Pictures\4.bmp','bmp'); %4M,f.[e
% 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))); fHZ9wK>
q2=atan2((i04-i02),(i01-i03)); l}(HE+?
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 M'R
] ''
%%%-------------------------------------%% Y[PC<-fyf
temp=ones(size(q2)); F%lC%~-qh
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--------------- 6l4=
figure,mesh(q21); ipGxi[Vav
% q21=my_unwrap(q2); q!U$\Q&
b=2*pi*f0*x+2*pi*z; g^|R;s{
cowx=(-1).*(-1).^floor(b/pi).*(2*b/pi-(2*floor(b/pi)+1)); 0wTOdCvmb
sowx=(-1).^round(b/pi).*(2*b/pi-2*round(b/pi)); R%2.N!8v
i1=0.5+0.5*cowx+noise.*rand(size(z));%%%%-------------投影到物体上的变形光栅像----------------------- qk^/&j
figure,imshow(i1)%%%携带物体信息的变形光栅条纹的图像 ,']CqhL6=R
% axis off;imwrite(i1,'C:\Documents and Settings\Administrator\My Documents\My Pictures\5.bmp','bmp'); vmNI$KZM
i2=0.5-0.5*sowx+noise.*rand(size(z)); {0,6-dd5
figure,imshow(i2)%%%携带物体信息的变形光栅条纹的图像 <a_(qh@B
% axis off;imwrite(i2,'C:\Documents and Settings\Administrator\My Documents\My Pictures\6.bmp','bmp'); I<<1mEk
i3=0.5-0.5*cowx+noise.*rand(size(z)); -:r<sv$
figure,imshow(i3)%%%携带物体信息的变形光栅条纹的图像 =#Jx~d [C
% axis off;imwrite(i3,'C:\Documents and Settings\Administrator\My Documents\My Pictures\7.bmp','bmp'); _XY(Qd
i4=0.5+0.5*sowx+noise.*rand(size(z)); w1zMY:9
figure,imshow(i4)%%%携带物体信息的变形光栅条纹的图像 zXlerQWUv
% axis off;imwrite(i4,'C:\Documents and Settings\Administrator\My Documents\My Pictures\8.bmp','bmp'); ,{(XT7hr
%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))); ~-H3]
q1=atan2((i4-i2),(i1-i3)); uR2|> m
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 (4q/LuP^d
`mD!z.`U
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------------------%% 8"d??3ZXJ
% q11=my_unwrap(q1); e&!c8\F
figure,mesh(q11); U8>4Cl J4
%%%------------------------------------%% g#6R(
% qq=q11-q21; b=qq./(2*pi); AH'3
5Kf)
% wu=qq./(2*pi)-z; 7 J6Z?
b=(q11-q21)./(2*pi); g<^A(zM
wu=(q11-q21)./(2*pi)-z; .C+(E@ey A
%err2=max(max(wu)) ^gyI-S(;
figure,mesh(q21);xlabel('x'),ylabel('y'),zlabel('z')%%%--------------------参考面展开的相位,应该为一斜面--------------- S^D@8<6GJ
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---%% BL>~~
figure,mesh(b);xlabel('x'),ylabel('y'),zlabel('z')%%%恢复的物体 UB8n,+R
figure,mesh(wu);xlabel('x'),ylabel('y'),zlabel('z')%%%测量误差