Contribution: circles and hough transform

Austin Chungath austincv at gmail.com
Wed Jun 18 08:19:45 EDT 2014


Thanks for the quick reply.
I will give a shot at random fraction of all points but I have a feeling
that it's not going to get it under one second.
It makes sense why it's taking so much time.

Regards,
Austin


On Wed, Jun 18, 2014 at 2:58 AM, François Boulogne <fboulogne at sciunto.org>
wrote:

>
> > 1. Is it possible to get the time taken for ellipse detection to under
> > a second?
> > 2. Are there any suggestions for improving the execution time?
> >
> >
> It's coded in cython, so it's pretty optimized and Johannes helped me on
> that. I think it's pretty well optimized.
>
> You are trying to find a point is a space with 5 dimensions, so it takes
> times.
> The time directly depends on the number of (let's say black) points in
> your binary image. If you have a lot of points, you may try to reduce
> the quantity. I never tried so far, but it probably works if you take
> randomly a fraction of all your points. The peak in the 5D space will be
> smaller and perhaps wider, but depending on the fraction, you may find a
> compromise.
>
> Best,
>
> --
> François Boulogne.
> http://www.sciunto.org
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