how to assign manual control points and track it in a video?

4 次查看（过去 30 天）
RAJKUMAR Palaniappan
编辑： Livnat Landau 2017-3-23
I would like to know if there exist any function in matlab to select one or more feature points manually in the first frame and track the points in the consecutive frames and processes it to acquire information regarding the changes.
  1 个评论
RAJKUMAR Palaniappan
RAJKUMAR Palaniappan 2013-6-26
I already found a positive and working solution on my own, i used ginput, an inbuilt function to point any number of feature points manually and then i used KLT algorithm for the purpose of tracking

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

RAJKUMAR Palaniappan
I already found a positive and working solution on my own, i used ginput, an inbuilt function to point any number of feature points manually and then i used KLT algorithm for the purpose of tracking

更多回答（1 个）

Livnat Landau
Livnat Landau 2017-3-23
编辑：Livnat Landau 2017-3-23
Thanks for your Ginput idea. Here is a code to manually track points in video based on it --
%
%read & display multiple images from a folder
srcFiles = dir('*.tif'); % the folder in which our images exist
dist=[];
TF=0;
x_v=[];
y_v=[];
%display file order
for i = 1 : length(srcFiles)
strcat('\',srcFiles(i).name)
end
%manually track points
for i = 1 : length(srcFiles)
filename = strcat('\',srcFiles(i).name);
I = imread(filename);
imshow(I)
for j=1:size(x_v,2)
hold on;
plot(x_v(:,j),y_v(:,j),'+-', 'MarkerSize', 10);
end
hold on
[x,y]=ginput
x_v(i,:)=x;
y_v(i,:)=y;
close all
end

类别

在 Help Center 和 File Exchange 中查找有关 Video Formats and Interfaces 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by