Actually I want to detect object from dynamic background,Can you please post the code of RANSAC method to eliminate the abnormal feature points?

I already applied SIFT algorithm to finish image feature extraction for image matching between frames.so in order to obtain the accurate parameters of affine transformation model, RANSAC method is used to eliminate the abnormal feature points.Please give me some easy code because i am new in this. Thank you

Answer 1

[Walter Roberson]

http://www.mathworks.com/discovery/ransac.html

[Rutvi Modi]

sir, I want to know that can we use this Rasac after that SIFT transformation? sorry, for asking silly question. but i am totally new in this area.

[Walter Roberson]

Sure, why not? RANSAC is for fitting a model, so RANSAC does not care how the data is obtained, only that you give it an expression for a model that does not crash when it is run with the data.

Whether it makes sense to use RANSAC after SIFT is a matter for theory that should be researched somewhere else. But you can do it.

See also http://www.mathworks.com/matlabcentral/fileexchange/30849-image-mosaic-using-sift