6"_pCkn;c<
close all;clear all;clc <oXBkCi0r
N=512;x=1:N; f%PLR9Nh5@
y=1:N;[x,y]=meshgrid(x,y);R=240;r=90; =R:O`qdC4e
z=zeros(N); 3D6&0xTq
for i=1:N &j~9{ C
for j=1:N `Ij EwKra
if(sqrt((i-N/2)^2+(j-N/2)^2)<sqrt(R*R-r*r)) R?1Z[N
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 .$s']' =
end ;HCK iHC
end '`;=d<'
end COsy.$|4
z=0.02*z; </kuJh\
figure,mesh(z);xlabel('x'),ylabel('y'),zlabel('z') %%%物体的显示,三维 nP[Z6h
f0=0.01;%%%----------------光栅条纹的频率即周期的倒数1/T--------------------------%% 0xZ^ f}@L
a=2*pi*x*f0; O)W+rmToI
cowx=(-1).*(-1).^floor(a/pi).*(2*a/pi-(2*floor(a/pi)+1)); kB?/_a`]
sowx=(-1).^round(a/pi).*(2*a/pi-2*round(a/pi)); <cZ/_+H%C
noise=0; i+(>w'=m
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 } J?,?>Z
i02=0.5-0.5*sowx+noise.*rand(size(z)); CA|l|
t^
i03=0.5-0.5*cowx+noise.*rand(size(z)); aA$\iFYA
i04=0.5+0.5*sowx+noise.*rand(size(z)); 9Tr ceL;
figure,imshow(i01);%%%光栅条纹的图像
Qq6'[Od
% axis off;imwrite(i01,'C:\Documents and Settings\Administrator\My Documents\My Pictures\1.bmp','bmp'); PCwc=
figure,imshow(i02);%%%光栅条纹的图像 \5tG>>c i
% axis off;imwrite(i02,'C:\Documents and Settings\Administrator\My Documents\My Pictures\2.bmp','bmp'); ?Sh"%x
figure,imshow(i03);%%%光栅条纹的图像 ?#a&eW
% axis off;imwrite(i03,'C:\Documents and Settings\Administrator\My Documents\My Pictures\3.bmp','bmp'); )^8[({r~
figure,imshow(i04);%%%光栅条纹的图像 K. B\F)K
% axis off;imwrite(i04,'C:\Documents and Settings\Administrator\My Documents\My Pictures\4.bmp','bmp'); :ek^M (
% 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))); -uN{28;@
q2=atan2((i04-i02),(i01-i03)); }Tk:?U{
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 8VG}-
%%%-------------------------------------%% w;Azxcw
temp=ones(size(q2)); 5MG4S
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--------------- T-yEn&r4)
figure,mesh(q21); kIa16m
% q21=my_unwrap(q2); //N="9)@
b=2*pi*f0*x+2*pi*z; ogSDV
cowx=(-1).*(-1).^floor(b/pi).*(2*b/pi-(2*floor(b/pi)+1)); .h4NG4FIF
sowx=(-1).^round(b/pi).*(2*b/pi-2*round(b/pi)); f?ycZ
i1=0.5+0.5*cowx+noise.*rand(size(z));%%%%-------------投影到物体上的变形光栅像----------------------- UUDbOxD^w
figure,imshow(i1)%%%携带物体信息的变形光栅条纹的图像 Z79 6;qk
% axis off;imwrite(i1,'C:\Documents and Settings\Administrator\My Documents\My Pictures\5.bmp','bmp'); ?f9M59(l
i2=0.5-0.5*sowx+noise.*rand(size(z)); EZ>(}
figure,imshow(i2)%%%携带物体信息的变形光栅条纹的图像 v6DjNyg<x
% axis off;imwrite(i2,'C:\Documents and Settings\Administrator\My Documents\My Pictures\6.bmp','bmp'); x~uDCbL
i3=0.5-0.5*cowx+noise.*rand(size(z)); O*/%zr
figure,imshow(i3)%%%携带物体信息的变形光栅条纹的图像 $aEv*{$y
% axis off;imwrite(i3,'C:\Documents and Settings\Administrator\My Documents\My Pictures\7.bmp','bmp'); G11KAq(
i4=0.5+0.5*sowx+noise.*rand(size(z)); fJ\?+,
figure,imshow(i4)%%%携带物体信息的变形光栅条纹的图像 x] `F#5j
% axis off;imwrite(i4,'C:\Documents and Settings\Administrator\My Documents\My Pictures\8.bmp','bmp'); Ohgu*5!o
%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))); f99"~)B|
q1=atan2((i4-i2),(i1-i3)); 66-\}8f8a
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 "*/IP9?]
~$>JYJj
q11=LingXingUnwrap2(q1,temp,100,100);%%%------携带物体信息的连续相位分布,此图像应为斜面上有高度起伏的现象的一幅图------------------%% z9&j
% q11=my_unwrap(q1); BPkL3Ev1V
figure,mesh(q11); EdqB4-#7
%%%------------------------------------%% Uc_}="
% qq=q11-q21; b=qq./(2*pi); Z #
% wu=qq./(2*pi)-z; 4$, W\d
b=(q11-q21)./(2*pi); $bp$[fX(e
wu=(q11-q21)./(2*pi)-z; zqrqbqK5R
%err2=max(max(wu)) F0&ubspt