drawing trajectory of detected people in video

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Juan Garay
Juan Garay 2014-5-20
评论： Walter Roberson 2019-1-2
Im studying kalman filtering and people detection, and using Matlab example "multiObjectTracking.m" with my own video, my idea is detecting the people in the video but also display the trajectory of the people, drawing it on the video with a line or something, is there a function or method to do that? Something that uses the collected data to draw the trajectory of the detected object like the image below xD

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回答（2 个）

Dima Lisin
Dima Lisin 2014-7-1
There is currently no special built-in function to draw the trajectories. But once you have the points, you can use the insertShape(I, 'Line', ...) to draw a polyline, and/or you can use the insertMarker() function to mark the individual points with markers of a consistent color.
  2 个评论
TIMOTHY YIN HONG
TIMOTHY YIN HONG 2019-1-2
i don't get it. is it insertShape(input , 'Line', [red] );
something like this?
Walter Roberson
Walter Roberson 2019-1-2
insertShape(input , 'Line', [xstart, ystart, xend, yend], 'Color', 'r' );
for appropriate xstart, ystart, xend, yend values.

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Katie Doggett
Katie Doggett 2017-6-11
Did you ever figure this out? I'm trying to do something similar
  1 个评论
Image Analyst
Image Analyst 2017-6-11
Once you have the trajectory coordinates, you can simply use plot() to draw line/curve into the overlay above the image.

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