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Video Stabilization for moving camera

asked 2013-09-23 05:02:54 -0500

TimeManx gravatar image

updated 2013-09-23 05:04:24 -0500

berak gravatar image

I need to stabilize the shakes that a moving camera gets, for example, when a person is walking with the camera in his hand.

Till now, I've been able to detect the features of both frames using the FAST feature detector and calculate the displacement of the points.

What should I do next? Other posts suggest calculating the homography matrix and then using it to warp the new frame but will that not distort the linear motion of the camera as well? I just need to remove the shakes.

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answered 2013-09-23 05:20:28 -0500

Michael Burdinov gravatar image

Maybe this post will help you.

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You're post looks all mumbo-jumbo to me (only because I'm a computer vision noob, you've explained it very nicely). I don't even know what Hough voting is. What I'm doing right now is matching the FAST features of the two frames using the FLANNBASED descriptor matcher and discarding feature movements which are below a certain threshold. But I don't get very good results with this. Are there any improvements/flaws that you see here? Or should I dig deeper into your post?

TimeManx gravatar imageTimeManx ( 2013-09-23 16:50:11 -0500 )edit
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Dig deeper in his posts! If you don't get his vocabulary, google it and learn about it. Hough voting is about as basic in computer vision as it can get for many complexer algorithms :)

StevenPuttemans gravatar imageStevenPuttemans ( 2013-09-24 02:53:21 -0500 )edit
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answered 2013-09-24 02:36:36 -0500

JohannesZ gravatar image

Look at these slides:

http://inside.mines.edu/~whoff/courses/EENG512/lectures/15-SIFTBasedObjectRecog.pdf

It is build around SIFT, but the principle with hough voting is much the same.

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Asked: 2013-09-23 05:02:54 -0500

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Last updated: Sep 24 '13