Question

运动目标检测matlab程序

Answer 1

function cat_mouse

clear

clc

mov=avifile('cat_mouse.avi');

ts=0:0.005:0.5;

x0=[0,0];

[t,x]=ode45(@cat_m,ts,x0);

n=length(x);

figure(1)

plot(0,0,'.')

hold on

h1=line( 'Color' ,[0 0 1], 'Marker' , '.' , 'MarkerSize' ,40, 'EraseMode' , 'xor' );

h2=line(15,0,'MarkerFaceColor',[0 1 0],'Marker','h', 'MarkerSize' ,15, 'EraseMode' , 'xor');

plot(15,0,'.')

line([15 15],[0 11],'LineWidth',2)

axis equal

axis([0 16 0 11])

title('猫追耗子动画演示')

for i=1:n-1

plot(x([i i+1],1),x([i i+1],2))

set(h1, 'xdata' ,x(i+1,1), 'ydata' ,x(i+1,2));

set(h2, 'xdata' ,15, 'ydata' ,20*t(i+1));

drawnow; % 刷新屏幕

pause(0.005)

f=getframe(gcf);

mov=addframe(mov,f);

end

hold off

mov=close(mov);

后面是子程序
function dx=cat_m(t,x)

a=20;b=40;c=15;

s=sqrt((c-x(1))^2+(a*t-x(2))^2);

dx=[b*(c-x(1))/s;b*(a*t-x(2))/s];

上次看到一个网友做的猫捉老鼠的实现，其实就是导弹追踪问题