Determine the Center of Rotation from a set of images
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James Eder
on 12 May 2017
Commented: Morgan Facchin
on 19 Aug 2019
I would like an efficient algorithm to determine the center of rotation from a set of N images. The set of images are of the same scene in which the camera was rotated by a mechanical axis. For sure, the center of rotation is within the image, very close to the center of the image. I do know the amount of angular rotation of scene for each image, as this was commanded by the robot.
I can envision a brute force method using image registration with 3 dof (x,y,theta). However, I feel that there exists a more elegant way to get this done using a transform or some other method like taking the average of all images and looking for the "North Star" point. Thanks.
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Morgan Facchin
on 19 Aug 2019
Hello,
This post is a bit old but I'm asking anyway, I am trying so do the exact same thing, did you find any nice way of doing it? I also had that "North Star" thought but still can't do anything satisfactory!
Thanks ;)
Accepted Answer
Image Analyst
on 12 May 2017
Maybe use optical flow? Not sure it's any better than the method you're already using though.
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