Vineeth Acharya wrote:
> Hi every1
> I am doing a project on image registration. I have two aerial images
> taken at different times, which need to be registered.
>
> For feature detection, I used a Harris corner detector on both the
> images, and found a number of corners( or feature points). Though all
> points in 1 image dont correspond to a point in the the, there is
> quite a few matched pairs, if matched manually.
>
> But I need to do the image reg without manual interference. So could
> anyone please help me, as to what algorithm I can use to match the
> points.
This is a standard problem with satellite
imagery, particularly when processed by
national remote sensing centres. Last time
I looked (which was many years ago) they
were using template matching to find a 15x15
pixel image "chip" within the image to be
registered. Better techniques probably are
being used these days.
Try Googling for "automatic ground control
points", "automated GCP", etc, and see what
comes up.
--
Regards,
Martin Leese
E-mail: please@[EMAIL PROTECTED]
http://members.tripod.com/martin_leese/
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