D|9+:Y
close all;clear all;clc 4MS<t FH)
N=512;x=1:N; h`|04Q
y=1:N;[x,y]=meshgrid(x,y);R=240;r=90; ~'_cBJ
'XD
z=zeros(N); S\TXx79PhC
for i=1:N w2nReB z
for j=1:N 0M HiW=
if(sqrt((i-N/2)^2+(j-N/2)^2)<sqrt(R*R-r*r)) bGWfMu=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 l\s!A&L
end ls@]%pz.1d
end 2cYBm^o|x
end W r/-{Wt
z=0.02*z; rz "$zc.)
figure,mesh(z);xlabel('x'),ylabel('y'),zlabel('z') %%%物体的显示,三维 4 ThFC
f0=0.01;%%%----------------光栅条纹的频率即周期的倒数1/T--------------------------%% :k/Xt$`
a=2*pi*x*f0; v(2N@s<%
cowx=(-1).*(-1).^floor(a/pi).*(2*a/pi-(2*floor(a/pi)+1)); EG>?>K_D
sowx=(-1).^round(a/pi).*(2*a/pi-2*round(a/pi)); )]1hN;Nz
noise=0; h+[6i{
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/D)X=P1
i02=0.5-0.5*sowx+noise.*rand(size(z)); q?(]
Y*
i03=0.5-0.5*cowx+noise.*rand(size(z)); lME>U_E
i04=0.5+0.5*sowx+noise.*rand(size(z)); ~gfR1SE
figure,imshow(i01);%%%光栅条纹的图像 D!&(#Vl
_
% axis off;imwrite(i01,'C:\Documents and Settings\Administrator\My Documents\My Pictures\1.bmp','bmp'); 6TW7E}a.
figure,imshow(i02);%%%光栅条纹的图像 KMRPleF
% axis off;imwrite(i02,'C:\Documents and Settings\Administrator\My Documents\My Pictures\2.bmp','bmp'); Nwi|>'\C
figure,imshow(i03);%%%光栅条纹的图像 /\8Il+0
% axis off;imwrite(i03,'C:\Documents and Settings\Administrator\My Documents\My Pictures\3.bmp','bmp'); "313eeIt%i
figure,imshow(i04);%%%光栅条纹的图像 Urr%SIakvM
% axis off;imwrite(i04,'C:\Documents and Settings\Administrator\My Documents\My Pictures\4.bmp','bmp'); o
<q*3L5
% 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))); sAkr-x?+M
q2=atan2((i04-i02),(i01-i03)); $O%{l.-O
figure,mesh(q2);xlabel('x'),ylabel('y'),zlabel('z')%-----------q2为通过公式计算出的相位,被截断在幅角主值范围内 j!u)V1,
%%%-------------------------------------%% (&:gD4.
temp=ones(size(q2)); ~Bzzu %S
q21=LingXingUnwrap2(q2,temp,100,100);%%%--------------------进行相位展开,成为展开的相位,应该为一斜面--------------- IP62|~Ap
figure,mesh(q21); ShB]U5b:k
% q21=my_unwrap(q2); EA& 3rI>U)
b=2*pi*f0*x+2*pi*z; C%XO|sP
cowx=(-1).*(-1).^floor(b/pi).*(2*b/pi-(2*floor(b/pi)+1)); s*izhjjX
sowx=(-1).^round(b/pi).*(2*b/pi-2*round(b/pi)); l[}4
X/
i1=0.5+0.5*cowx+noise.*rand(size(z));%%%%-------------投影到物体上的变形光栅像----------------------- n<ZPWlJ
figure,imshow(i1)%%%携带物体信息的变形光栅条纹的图像 LIZB!S@V \
% axis off;imwrite(i1,'C:\Documents and Settings\Administrator\My Documents\My Pictures\5.bmp','bmp'); sl]<A[jR
i2=0.5-0.5*sowx+noise.*rand(size(z)); cSb;a\el$
figure,imshow(i2)%%%携带物体信息的变形光栅条纹的图像 )%7P?^>
% axis off;imwrite(i2,'C:\Documents and Settings\Administrator\My Documents\My Pictures\6.bmp','bmp'); x|6]+?l@6
i3=0.5-0.5*cowx+noise.*rand(size(z)); o<`hj&s
figure,imshow(i3)%%%携带物体信息的变形光栅条纹的图像 3P
cVE\GN
% axis off;imwrite(i3,'C:\Documents and Settings\Administrator\My Documents\My Pictures\7.bmp','bmp'); {a7~P0$
i4=0.5+0.5*sowx+noise.*rand(size(z)); oh9
;_~
figure,imshow(i4)%%%携带物体信息的变形光栅条纹的图像 W:]FYC
% axis off;imwrite(i4,'C:\Documents and Settings\Administrator\My Documents\My Pictures\8.bmp','bmp'); ~e{ @ 5.g
%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))); _wq?Pa<)e
q1=atan2((i4-i2),(i1-i3)); z5>I9R^q;
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 NQ9v[gv
O`5,L[i1y
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------------------%% 7zM:z,
% q11=my_unwrap(q1); ks4`h>i
figure,mesh(q11); C?<pD+]b_
%%%------------------------------------%% {7NGfzwp;6
% qq=q11-q21; b=qq./(2*pi); 7GgZ: $d
% wu=qq./(2*pi)-z; y0 * rY
b=(q11-q21)./(2*pi); X]0>0=^
wu=(q11-q21)./(2*pi)-z; )[Y B&
%err2=max(max(wu)) g52a
vG
figure,mesh(q21);xlabel('x'),ylabel('y'),zlabel('z')%%%--------------------参考面展开的相位,应该为一斜面--------------- D|;O9iks#
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---%% r"7n2
figure,mesh(b);xlabel('x'),ylabel('y'),zlabel('z')%%%恢复的物体 #.Rn6|V/4
figure,mesh(wu);xlabel('x'),ylabel('y'),zlabel('z')%%%测量误差