How do I plot a trajectory of an object in video.
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I have a video of a test subject moving around and I need to plot it's where abouts over a time period. The subject has a distinctive red color while the background is mostly white. How can I record it's (x,y) whereabouts and then plot them?
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KSSV
2017년 12월 4일
Not clear...you have a video and you want to plot the trajectory of the object from video...or you want to make a video of the trajectory?
답변 (2개)
Image Analyst
2017년 12월 4일
Find the red object first. The Color Thresholder app on the Apps tab of the tool ribbon might be helpful. Or else see my File Exchange. https://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862&sort=downloads_desc
Then save the (row, column) or (x, y) location of the red object in a loop over frames and plot it.
x(frameNumber) = column;
y(frameNumber) = row;
cla;
plot(x, y, 'r-', 'LineWidth', 2);
grid on;
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Lucy Davidson
2020년 4월 3일
Did you manage to do this?? I am trying to do a smililar thing and I am quite confused. I had made the back ground white and the animal i am tracking black
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Help Center 및 File Exchange에서 Tracking and Motion Estimation에 대해 자세히 알아보기
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