zYJ`.,#C 5
close all;clear all;clc DQXx}%Px
N=512;x=1:N; _BaS\U%1(
y=1:N;[x,y]=meshgrid(x,y);R=240;r=90; !b8|{#qh.
z=zeros(N); z#67rh{
for i=1:N X"59`Yh
for j=1:N @!HMd{r
if(sqrt((i-N/2)^2+(j-N/2)^2)<sqrt(R*R-r*r)) ptL}F~
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 BnY|t2r
end znpZ0O\!
end FOyfk$
end yAkN2
z=0.02*z; %Ne>'252y
figure,mesh(z);xlabel('x'),ylabel('y'),zlabel('z') %%%物体的显示,三维 2*E<G|-F
f0=0.01;%%%----------------光栅条纹的频率即周期的倒数1/T--------------------------%% K4L#%KUPW
a=2*pi*x*f0; F<<H [,%0
cowx=(-1).*(-1).^floor(a/pi).*(2*a/pi-(2*floor(a/pi)+1)); [<Puh
sowx=(-1).^round(a/pi).*(2*a/pi-2*round(a/pi)); hpKc_|un
noise=0; wpMQ 7: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 0n^j 50Yq
i02=0.5-0.5*sowx+noise.*rand(size(z)); td$Jx}'A
i03=0.5-0.5*cowx+noise.*rand(size(z)); bTKxv<
i04=0.5+0.5*sowx+noise.*rand(size(z)); .b)(_*
figure,imshow(i01);%%%光栅条纹的图像 ~u1JR`y
% axis off;imwrite(i01,'C:\Documents and Settings\Administrator\My Documents\My Pictures\1.bmp','bmp'); I#e*,#'S
figure,imshow(i02);%%%光栅条纹的图像 r{;4(3E2
% axis off;imwrite(i02,'C:\Documents and Settings\Administrator\My Documents\My Pictures\2.bmp','bmp'); l'R`XGT
figure,imshow(i03);%%%光栅条纹的图像 !9Xex?et
% axis off;imwrite(i03,'C:\Documents and Settings\Administrator\My Documents\My Pictures\3.bmp','bmp'); j* ja)
figure,imshow(i04);%%%光栅条纹的图像 7nIMIkT:
% axis off;imwrite(i04,'C:\Documents and Settings\Administrator\My Documents\My Pictures\4.bmp','bmp'); ZXkAw sr
% 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))); Stx-(Kfn4
q2=atan2((i04-i02),(i01-i03)); l/M+JT~R
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 =~*u(0sJa
%%%-------------------------------------%% ovVU%2o1b
temp=ones(size(q2)); `buTP?]4.
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--------------- V!!'S
h
figure,mesh(q21); ,PAKPX9v_F
% q21=my_unwrap(q2); >0$5H]1u
b=2*pi*f0*x+2*pi*z; C*<LVW{P
cowx=(-1).*(-1).^floor(b/pi).*(2*b/pi-(2*floor(b/pi)+1)); '1*MiFxKq
sowx=(-1).^round(b/pi).*(2*b/pi-2*round(b/pi)); GQ8P}McA
i1=0.5+0.5*cowx+noise.*rand(size(z));%%%%-------------投影到物体上的变形光栅像----------------------- =]Bm>67"
figure,imshow(i1)%%%携带物体信息的变形光栅条纹的图像 H[oi? {L
% axis off;imwrite(i1,'C:\Documents and Settings\Administrator\My Documents\My Pictures\5.bmp','bmp'); t?Znil|o
i2=0.5-0.5*sowx+noise.*rand(size(z)); evP`&23tP
figure,imshow(i2)%%%携带物体信息的变形光栅条纹的图像 @UBp;pb}=h
% axis off;imwrite(i2,'C:\Documents and Settings\Administrator\My Documents\My Pictures\6.bmp','bmp'); / nRaxzf'
i3=0.5-0.5*cowx+noise.*rand(size(z)); W`kgYGnFG
figure,imshow(i3)%%%携带物体信息的变形光栅条纹的图像 N/p_6GYMa
% axis off;imwrite(i3,'C:\Documents and Settings\Administrator\My Documents\My Pictures\7.bmp','bmp'); s=+G%B'
i4=0.5+0.5*sowx+noise.*rand(size(z)); T[J_/DE@
figure,imshow(i4)%%%携带物体信息的变形光栅条纹的图像 XoOe=V?I )
% axis off;imwrite(i4,'C:\Documents and Settings\Administrator\My Documents\My Pictures\8.bmp','bmp'); 0U~JSmj:2K
%q1=-atan2((i1*sin(0*pi/4)+i2*sin(2*pi/4)+i3*sin(pi)+i4*sin(6*pi/4)),(i1*cos(0*pi/4)+i2*cos(2*pi/4)+i3*cos(pi)+i4*cos(6*pi/4))); B5S1F4
q1=atan2((i4-i2),(i1-i3)); !b_IH0]U
figure,mesh(q1);xlabel('x'),ylabel('y'),zlabel('z') %-----------q1为通过公式计算出的携带物体信息的相位,被截断在幅角主值范围内 C<ljBz`,t
_^ZII
q11=LingXingUnwrap2(q1,temp,100,100);%%%------携带物体信息的连续相位分布,此图像应为斜面上有高度起伏的现象的一幅图------------------%% n9ih^H
% q11=my_unwrap(q1); v4zARE9#
figure,mesh(q11); zSO9 U
%%%------------------------------------%% p`0Tpgi
% qq=q11-q21; b=qq./(2*pi); d?qz7#kc
% wu=qq./(2*pi)-z; /xnhHwJm
b=(q11-q21)./(2*pi); %0'f`P6
wu=(q11-q21)./(2*pi)-z; (C|%@6 1S
%err2=max(max(wu)) %-.GyG$i
figure,mesh(q21);xlabel('x'),ylabel('y'),zlabel('z')%%%--------------------参考面展开的相位,应该为一斜面--------------- ;!b(b%
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---%% R7>@-EG
figure,mesh(b);xlabel('x'),ylabel('y'),zlabel('z')%%%恢复的物体 J KGZ0yn
figure,mesh(wu);xlabel('x'),ylabel('y'),zlabel('z')%%%测量误差