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pcriadoperez / p-surf

Automatically exported from code.google.com/p/p-surf
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Issues and Feature Requirements #1

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
I have compared p-surf against OpenCV surf implementation. I have found
following limitations of p-surf implementation

1. Scale per octave is not configurable in p-surf. For higher resolution
images, more scales per octave are required.

2. p-surf only implements SURF-64. SURF-128 is not implemented.

3. Salient points detected by OpenCV SURF and p-surf are not same. I did
comparison of two implementation by using recall-precision metric provided
by Mikolajczyk. OpenCV SURF performance significantly better than p-surf
under viewpoint changes, blur and lighting changes. In fact performance of
p-surf is even not acceptable under these deformations. What can be the
reason for this ?? How did you test your software ??

Original issue reported on code.google.com by sachin.f...@gmail.com on 12 May 2010 at 4:59

GoogleCodeExporter commented 8 years ago 
Thank you for your time.
As we explained in our paper, our implementation is partial. In particular, no 
refinement of the interest points detection is made. Futhermore, the descriptor 
of each point doesn't consider the orientation.
That's probably why there are differences between OpenCV SURF and P-Surf in 
your point 3.
The library is fully open and it can be extended by everyone. The details are 
all included inside the paper.
We are sorry about the paper because it's italian only. If you need help we can 
discuss about that.
P-Surf was a project made during our university studies, so at a certain point 
we had to conclude.
Thank you again for your message.

Alessandro

Original comment by alessand...@gmail.com on 4 Oct 2010 at 7:33

GoogleCodeExporter commented 8 years ago 
Thank you very much for support,

I would like to discuss about my query. I am dealing with high speed image 
processing. The camera capture speed is 500fps and 1000fps my desired 
computation time should be realtime 1/ 500 or 1/1000 ms. 

I implemented SURF algorithm and I found I can not achieve real time processing 
at high speed capturing. 

Is it possible processing to achieve real time image by using P SURF? What is 
the computation time of P SURF?

Please let me know about it.

Thank you,
Sushil
sushil.raut2080@gmail.com

Original comment by sushil.r...@gmail.com on 25 Apr 2013 at 8:29