Image stitching from a live video stream

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Hi,

I am trying to capture a live video from a GigE Camera and then would like to put the frames which i get from the capture into a function which stitches the frames and stacks it onto the result image. However, the function which stitches is very slow. I want the stitching to be done in a real time speed like say around 30 mph. How do i achieve this?

Wanted to know if using CUDA would help me in any way?