Detecting particular objects in the image i.e image segmentation with opencv

I have to select any particular object visible in my image on i-phone. Basically my project is to segment image objects on the basis of my touch.

The method I am following is to first detect contours of the image and then select a particular sequence based on finger touch. Is there any other method which would be more robust because I have to run it on video frames?

I am using OpenCV and iphone for the project. 开发者_开发百科PLease help if there is any other idea which has been implemented or is feasible to implement.

Have you looked at SIFT or SURF implementations? They both track object features and are resilient (to a certain degree) to rotation, translation and scale.

Also check out FAST which is a corner detection algorithm which might help you, they have an app on the app store showing how quick it is too.