h,t|V}Wb
close all;clear all;clc F}?<v8#z0
N=512;x=1:N; t={0(
y=1:N;[x,y]=meshgrid(x,y);R=240;r=90; U\<-mXv
z=zeros(N); +",S2Qmo
for i=1:N _ *(bmJM
for j=1:N SOh-,c\C
if(sqrt((i-N/2)^2+(j-N/2)^2)<sqrt(R*R-r*r)) [uuj?Rbd
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 {+T/GBF-K=
end {aq9i
end X~U >LLr
end -e -e9uP
z=0.02*z; cSD{$B:
figure,mesh(z);xlabel('x'),ylabel('y'),zlabel('z') %%%物体的显示,三维 %|Qw9sbd
f0=0.01;%%%----------------光栅条纹的频率即周期的倒数1/T--------------------------%% 3!9Z=-tD
a=2*pi*x*f0; %IZ)3x3l
cowx=(-1).*(-1).^floor(a/pi).*(2*a/pi-(2*floor(a/pi)+1)); \ {|ImCH
sowx=(-1).^round(a/pi).*(2*a/pi-2*round(a/pi)); }<m{~32M
noise=0; Q4'C;<\@(Q
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 @s*,xHE
i02=0.5-0.5*sowx+noise.*rand(size(z)); E)p9eU[#
i03=0.5-0.5*cowx+noise.*rand(size(z)); $^% N U
i04=0.5+0.5*sowx+noise.*rand(size(z)); ETw]!
br
figure,imshow(i01);%%%光栅条纹的图像 $xW**&
% axis off;imwrite(i01,'C:\Documents and Settings\Administrator\My Documents\My Pictures\1.bmp','bmp'); x1[?5n6
figure,imshow(i02);%%%光栅条纹的图像 #;r]/)>
% axis off;imwrite(i02,'C:\Documents and Settings\Administrator\My Documents\My Pictures\2.bmp','bmp'); 2Oc$+St~8
figure,imshow(i03);%%%光栅条纹的图像 Y*YFB|f?
% axis off;imwrite(i03,'C:\Documents and Settings\Administrator\My Documents\My Pictures\3.bmp','bmp'); %e%7oqR?
figure,imshow(i04);%%%光栅条纹的图像 (|h:h(C
% axis off;imwrite(i04,'C:\Documents and Settings\Administrator\My Documents\My Pictures\4.bmp','bmp'); v"lf-c
% 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))); 4jwu'7Q
q2=atan2((i04-i02),(i01-i03)); +&v\
/
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 7k8n@39?
%%%-------------------------------------%% )/t6" "
temp=ones(size(q2)); |"7Pv
skT
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--------------- ,Qc.;4s-
figure,mesh(q21); Fz"ff4Bx [
% q21=my_unwrap(q2); kA?_%fi1
b=2*pi*f0*x+2*pi*z; L:f)i,S"5q
cowx=(-1).*(-1).^floor(b/pi).*(2*b/pi-(2*floor(b/pi)+1)); UZxmhsv
sowx=(-1).^round(b/pi).*(2*b/pi-2*round(b/pi)); h[Tk;h
i1=0.5+0.5*cowx+noise.*rand(size(z));%%%%-------------投影到物体上的变形光栅像----------------------- &y.dmW
figure,imshow(i1)%%%携带物体信息的变形光栅条纹的图像 o#hI5
% axis off;imwrite(i1,'C:\Documents and Settings\Administrator\My Documents\My Pictures\5.bmp','bmp'); yY=<'{!
i2=0.5-0.5*sowx+noise.*rand(size(z)); MWwJzVL8
figure,imshow(i2)%%%携带物体信息的变形光栅条纹的图像 D guB
% axis off;imwrite(i2,'C:\Documents and Settings\Administrator\My Documents\My Pictures\6.bmp','bmp'); ';YgG<u
i3=0.5-0.5*cowx+noise.*rand(size(z)); HkjEiU
figure,imshow(i3)%%%携带物体信息的变形光栅条纹的图像 '1+.t$"/tU
% axis off;imwrite(i3,'C:\Documents and Settings\Administrator\My Documents\My Pictures\7.bmp','bmp');
nB@UKX
i4=0.5+0.5*sowx+noise.*rand(size(z)); !k&)EWP?
figure,imshow(i4)%%%携带物体信息的变形光栅条纹的图像 F'W>
8
% axis off;imwrite(i4,'C:\Documents and Settings\Administrator\My Documents\My Pictures\8.bmp','bmp'); 4('JwZw\!
%q1=-atan2((i1*sin(0*pi/4)+i2*sin(2*pi/4)+i3*sin(pi)+i4*sin(6*pi/4)),(i1*cos(0*pi/4)+i2*cos(2*pi/4)+i3*cos(pi)+i4*cos(6*pi/4))); fEqC] *s
q1=atan2((i4-i2),(i1-i3));
ZXXiL#^
figure,mesh(q1);xlabel('x'),ylabel('y'),zlabel('z') %-----------q1为通过公式计算出的携带物体信息的相位,被截断在幅角主值范围内 &"S/Lt
S7sb7c'4 k
q11=LingXingUnwrap2(q1,temp,100,100);%%%------携带物体信息的连续相位分布,此图像应为斜面上有高度起伏的现象的一幅图------------------%% .]t5q%}j
% q11=my_unwrap(q1); Ie_I7YJ
figure,mesh(q11); kq/u,16@
%%%------------------------------------%% f\o
R:%
% qq=q11-q21; b=qq./(2*pi); !D:k!
% wu=qq./(2*pi)-z; zJl_ t0
b=(q11-q21)./(2*pi); otriif@+Z
wu=(q11-q21)./(2*pi)-z; EZj1jpL
%err2=max(max(wu)) C3"&sdLb$
figure,mesh(q21);xlabel('x'),ylabel('y'),zlabel('z')%%%--------------------参考面展开的相位,应该为一斜面--------------- `iYc<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---%% \+B?}P8N*l
figure,mesh(b);xlabel('x'),ylabel('y'),zlabel('z')%%%恢复的物体 3E|;r
_;
8
figure,mesh(wu);xlabel('x'),ylabel('y'),zlabel('z')%%%测量误差