hObL=^F
close all;clear all;clc Fv~lasW[
N=512;x=1:N; q|D5
A|)
y=1:N;[x,y]=meshgrid(x,y);R=240;r=90; /L^g. ~
z=zeros(N); '3l TI
for i=1:N t$!zgUJ
for j=1:N zq};{~u(
if(sqrt((i-N/2)^2+(j-N/2)^2)<sqrt(R*R-r*r)) Q VTL}AT2:
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 yzS^8,
end ETHcZ
end N!K%aH~O
end Pm/<^z%
z=0.02*z; r{R-X3s
figure,mesh(z);xlabel('x'),ylabel('y'),zlabel('z') %%%物体的显示,三维 vywB{%p
f0=0.01;%%%----------------光栅条纹的频率即周期的倒数1/T--------------------------%% Wu][A\3D1
a=2*pi*x*f0; 64/ZfXD
cowx=(-1).*(-1).^floor(a/pi).*(2*a/pi-(2*floor(a/pi)+1)); D^[l~K
sowx=(-1).^round(a/pi).*(2*a/pi-2*round(a/pi)); A 6S0dX
noise=0; 6(8F4[D
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 0<m7:D
Gd
i02=0.5-0.5*sowx+noise.*rand(size(z)); ]\M{Abqd{
i03=0.5-0.5*cowx+noise.*rand(size(z)); _EMI%P&s
i04=0.5+0.5*sowx+noise.*rand(size(z)); '##?PQ*u
figure,imshow(i01);%%%光栅条纹的图像 ly%^\jW
% axis off;imwrite(i01,'C:\Documents and Settings\Administrator\My Documents\My Pictures\1.bmp','bmp'); o,rF 15
figure,imshow(i02);%%%光栅条纹的图像 2)=whnFS
% axis off;imwrite(i02,'C:\Documents and Settings\Administrator\My Documents\My Pictures\2.bmp','bmp'); *wTX
figure,imshow(i03);%%%光栅条纹的图像 W22S/s
% axis off;imwrite(i03,'C:\Documents and Settings\Administrator\My Documents\My Pictures\3.bmp','bmp'); /!H24[tnk1
figure,imshow(i04);%%%光栅条纹的图像 );0
% axis off;imwrite(i04,'C:\Documents and Settings\Administrator\My Documents\My Pictures\4.bmp','bmp'); Nh!`"B2B
% 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))); f+ r>ur}\)
q2=atan2((i04-i02),(i01-i03)); CPJ<A,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 ..`c# O&
%%%-------------------------------------%% <X8Urum
temp=ones(size(q2)); Ux_tzd0!
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--------------- lM\dK)p21O
figure,mesh(q21); i<ES/U\
% q21=my_unwrap(q2); [7@blU
b=2*pi*f0*x+2*pi*z; HJl?@&l/
cowx=(-1).*(-1).^floor(b/pi).*(2*b/pi-(2*floor(b/pi)+1)); lju5+0BSb
sowx=(-1).^round(b/pi).*(2*b/pi-2*round(b/pi)); m^ xTV-#l@
i1=0.5+0.5*cowx+noise.*rand(size(z));%%%%-------------投影到物体上的变形光栅像----------------------- |nQfgl=V
figure,imshow(i1)%%%携带物体信息的变形光栅条纹的图像 kZ%
AGc
% axis off;imwrite(i1,'C:\Documents and Settings\Administrator\My Documents\My Pictures\5.bmp','bmp'); Z[@ i/. I
i2=0.5-0.5*sowx+noise.*rand(size(z)); 5=TgOS]R
figure,imshow(i2)%%%携带物体信息的变形光栅条纹的图像 !4p{b f
% axis off;imwrite(i2,'C:\Documents and Settings\Administrator\My Documents\My Pictures\6.bmp','bmp'); ;?Pz0,{h
i3=0.5-0.5*cowx+noise.*rand(size(z)); 9
/H~hEVK
figure,imshow(i3)%%%携带物体信息的变形光栅条纹的图像 l+Wux$6U
% axis off;imwrite(i3,'C:\Documents and Settings\Administrator\My Documents\My Pictures\7.bmp','bmp'); 8>C4w 5kF
i4=0.5+0.5*sowx+noise.*rand(size(z)); fJLl-H
figure,imshow(i4)%%%携带物体信息的变形光栅条纹的图像 \Tz|COG5h\
% axis off;imwrite(i4,'C:\Documents and Settings\Administrator\My Documents\My Pictures\8.bmp','bmp'); ='"Yj
%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))); c^W;p2^
q1=atan2((i4-i2),(i1-i3)); Z|qI[ui O
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 u#ya
8
8-G )lyfj
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------------------%% =zn'0g,J4
% q11=my_unwrap(q1); gN/!w:
figure,mesh(q11); Y][12{I{
%%%------------------------------------%% =i)%AnZ^9
% qq=q11-q21; b=qq./(2*pi); ^(;x-d3
% wu=qq./(2*pi)-z; $oW=N
b=(q11-q21)./(2*pi); /g u
VA
wu=(q11-q21)./(2*pi)-z; UuIjtqW
%err2=max(max(wu)) #4AU&UM+i
figure,mesh(q21);xlabel('x'),ylabel('y'),zlabel('z')%%%--------------------参考面展开的相位,应该为一斜面--------------- 6/;YS[jX
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---%% 6[t<g=
figure,mesh(b);xlabel('x'),ylabel('y'),zlabel('z')%%%恢复的物体 NCk-[I?R
figure,mesh(wu);xlabel('x'),ylabel('y'),zlabel('z')%%%测量误差