current position:Home>[Physical application] Simulation of lane detection based on Matlab

[Physical application] Simulation of lane detection based on Matlab

2022-09-23 02:09:58matlab_dingdang

1 Introduction

Simulation is to replace the real system with virtual models under real conditions and parameters for experiments and research. This paper expounds the application of simulation based on MATLAB software in college physics teaching and experiments based on examples.Physics teaching and experiment play an important role in simplifying teaching for college teachers and deepening students' understanding.

2 part code

function ellipse_wp = call_create_ellipse(lane_type,arc_length,a,b,lane_width)

%arc_length=0.1; %10cm

precision=0.001;

theta=0:precision:2*pi;

%lane_width=1.15;

%a=2.5; b=1.5;2

switch lane_type

case 1

color='green.';

case 2

color='red.';

a=a/lane_width; b=b/lane_width;

case 3

color='blue.';

a=a*lane_width; b=b*lane_width;

otherwise

disp('Unknown method.')

end

x=a*cos(theta);

y=b*sin(theta);

%plot(x,y,'red.')

point_x=[];

point_y=[];

for i=1:length(x)-1

dist_points(i)=sqrt((x(i+1)-x(i))^2+(y(i+1)-y(i))^2);

if sum(dist_points)>=arc_length

point_x=[point_x x(i)];

point_y=[point_y y(i)];

dist_points=dist_points*0;

end

end

%check arc_length equals to 10cm

mean_arc=[];

for i=1:length(point_x)-1

arc_length=sqrt((point_x(i+1)-point_x(i))^2+(point_y(i+1)-point_y(i))^2);

mean_arc=[mean_arc arc_length];

end

mean_arc=mean(mean_arc);

ellipse_xy=[point_x',point_y'];

ellipse_wp=cast(ellipse_xy,'single');

3 Run Results

4 References

[1] Zhang Liping, Huang Jinying, Pan Hongxia. Multi-lane line detection and MATLAB simulation based on mathematical morphology[J]. Agricultural Equipment and Vehicle Engineering, 2006(8):3.

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