7 ms·

Source for Predator Object Tracking (OpenCV)

116 points by helwr 16y ago

helper 16y ago
Predator Object Tracking explanation: http://www.geek.com/articles/chips/predator-takes-visual-object-tracking-to-new-heights-2011044/ http://www.geek.com/articles/chips/predator-takes-visual-obj...
- SandB0x 16y ago
  I'm not sure that counts as an explanation :) For details you could read his published papers on the subject: http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/2010_icip.pdf http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/20... http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/2010_icpr.pdf http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/20... http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/2010_cvpr.pdf http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/20... http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/2009_olcv.pdf http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/20...
- reemrevnivek 16y ago
  That article adds little to nothing to the author's original explanation. I'd suggest you read this page instead: http://info.ee.surrey.ac.uk/Personal/Z.Kalal/tld.html http://info.ee.surrey.ac.uk/Personal/Z.Kalal/tld.html That page also has links to the papers referenced by SandB0x.
weaksauce 16y ago
I thought he wasn't releasing this... why is Henrik Abelsson releasing this and not Zdeneki Kalai?
- wladimir 16y ago
  He already released it, and once you release something under GPL you can't take it back. You can stop hosting it, but someone else is free to develop further on it.
  - Tycho 16y ago
    My bet is this won't do what the video was showing. I'd love to be contradicted.
    - elitrium 16y ago
      It does (works amazingly), why don't you download the compiled demo and see for yourself? =) -- http://info.ee.surrey.ac.uk/Personal/Z.Kalal/tld.html http://info.ee.surrey.ac.uk/Personal/Z.Kalal/tld.html
  - SandB0x 16y ago
    Even so, I'm not sure this is a polite thing to do. I think it would be nice to respect the author's wishes for the moment: We have received hundreds of emails asking for the source code ranging from practitioners, students, researchers up to top companies. The range of proposed projects is exciting and it shows that TLD is ready to push the current technology forward. This shows that we have created something "bigger" than originally expected and therefore we are going to postpone the release of our source code until announced otherwise. Thank you for understanding. http://info.ee.surrey.ac.uk/Personal/Z.Kalal/tld.html http://info.ee.surrey.ac.uk/Personal/Z.Kalal/tld.html However as most of the tracking code is in Matlab - i.e. you can't just port this to your phone - I don't think the author has a great deal to lose here. If someone wants to re-implement the algorithms they may well need his expertise. (Edit: Looking at the code in more detail SammoJ may well be right, and this paragraph may be wrong.) In fact, Henrik Abelsson may have more to lose if this is seen as poor etiquette, but I'm speculating here.
    - kragen 16y ago
      Thank you for posting that link! I didn't know the background. You probably could get Octave running on rooted Android without too much pain.
    - SammoJ 16y ago
      Translating MATLAB -> C isn't too bad and could be done without any domain knowledge. Just remember the pesky 1 start for MATLAB arrays... Having a quick glance through the code I haven't seen any major reliance on MATLAB built-ins. Also "most of the tracking code is in MATLAB" is false. The tracking builds upon the Lucas-Kanade tracker in lk.cpp which uses OpenCVs implementation. I'd estimate a couple of full days of work tops to re-write in C. Qualifications: I have had to speed up (i.e. rewrite in C) a lot of complex MATLAB code.
helwr 16y ago
Follow-up on http://news.ycombinator.com/item?id=2403290 http://news.ycombinator.com/item?id=2403290
SammoJ 16y ago
You will need at least the image processing toolbox and statistics toolbox for MATLAB to run the code.
- sparky 16y ago
  And at least version R2009B, to get the new syntax for unused function arguments or return values ("~"). Otherwise, search and replace them with dummy variable names to get it to run. Should just take a couple minutes.
mrleinad 16y ago
IMHO, Zdenek Kalal has some short sighted view for business. Even if someone offered him a plane filled with money for his algorithm, or if he thought "hey, I can sell this shit! fuck the world! show me the money!", he fails at acknowledging that it doesn't really matter whether you created one of the best algorithms for image recognition: what matters is if you can do it again. What I'm talking about is, what if instead of selling one of the golden eggs, you give that for free and create a reputation for yourself worldwide, so more people will be willing to hire the golden egg's goose? Anyway.. Somewhere, Richard Stallman is smiling.. and I'm happy for that.
- mrleinad 16y ago
  Also, I predict that after this source code leak, the link to the source code will be put back at his site.
  - alexsb92 16y ago
    And you were right.
- helwr 16y ago
  Some people make things just because they love to make things.
  - lwat 16y ago
    Well he got a PhD for this one, that's something.
- maak 16y ago
  Let's not jump to conclusions...
helwr 16y ago
Official source: https://github.com/zk00006/OpenTLD https://github.com/zk00006/OpenTLD

116 points by helwr 16y ago

Predator Object Tracking explanation: http://www.geek.com/articles/chips/predator-takes-visual-object-tracking-to-new-heights-2011044/ http://www.geek.com/articles/chips/predator-takes-visual-obj...

SandB0x 16y ago
I'm not sure that counts as an explanation :) For details you could read his published papers on the subject: http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/2010_icip.pdf http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/20... http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/2010_icpr.pdf http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/20... http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/2010_cvpr.pdf http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/20... http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/2009_olcv.pdf http://info.ee.surrey.ac.uk/Personal/Z.Kalal/Publications/20...
reemrevnivek 16y ago
That article adds little to nothing to the author's original explanation. I'd suggest you read this page instead: http://info.ee.surrey.ac.uk/Personal/Z.Kalal/tld.html http://info.ee.surrey.ac.uk/Personal/Z.Kalal/tld.html That page also has links to the papers referenced by SandB0x.

weaksauce 16y ago

I thought he wasn't releasing this... why is Henrik Abelsson releasing this and not Zdeneki Kalai?

wladimir 16y ago
He already released it, and once you release something under GPL you can't take it back. You can stop hosting it, but someone else is free to develop further on it.
- Tycho 16y ago
  My bet is this won't do what the video was showing. I'd love to be contradicted.
  - elitrium 16y ago
    It does (works amazingly), why don't you download the compiled demo and see for yourself? =) -- http://info.ee.surrey.ac.uk/Personal/Z.Kalal/tld.html http://info.ee.surrey.ac.uk/Personal/Z.Kalal/tld.html
- SandB0x 16y ago
  Even so, I'm not sure this is a polite thing to do. I think it would be nice to respect the author's wishes for the moment: We have received hundreds of emails asking for the source code ranging from practitioners, students, researchers up to top companies. The range of proposed projects is exciting and it shows that TLD is ready to push the current technology forward. This shows that we have created something "bigger" than originally expected and therefore we are going to postpone the release of our source code until announced otherwise. Thank you for understanding. http://info.ee.surrey.ac.uk/Personal/Z.Kalal/tld.html http://info.ee.surrey.ac.uk/Personal/Z.Kalal/tld.html However as most of the tracking code is in Matlab - i.e. you can't just port this to your phone - I don't think the author has a great deal to lose here. If someone wants to re-implement the algorithms they may well need his expertise. (Edit: Looking at the code in more detail SammoJ may well be right, and this paragraph may be wrong.) In fact, Henrik Abelsson may have more to lose if this is seen as poor etiquette, but I'm speculating here.
  - kragen 16y ago
    Thank you for posting that link! I didn't know the background. You probably could get Octave running on rooted Android without too much pain.
  - SammoJ 16y ago
    Translating MATLAB -> C isn't too bad and could be done without any domain knowledge. Just remember the pesky 1 start for MATLAB arrays... Having a quick glance through the code I haven't seen any major reliance on MATLAB built-ins. Also "most of the tracking code is in MATLAB" is false. The tracking builds upon the Lucas-Kanade tracker in lk.cpp which uses OpenCVs implementation. I'd estimate a couple of full days of work tops to re-write in C. Qualifications: I have had to speed up (i.e. rewrite in C) a lot of complex MATLAB code.

helwr 16y ago

Follow-up on http://news.ycombinator.com/item?id=2403290 http://news.ycombinator.com/item?id=2403290

SammoJ 16y ago

You will need at least the image processing toolbox and statistics toolbox for MATLAB to run the code.

sparky 16y ago
And at least version R2009B, to get the new syntax for unused function arguments or return values ("~"). Otherwise, search and replace them with dummy variable names to get it to run. Should just take a couple minutes.

mrleinad 16y ago

IMHO, Zdenek Kalal has some short sighted view for business. Even if someone offered him a plane filled with money for his algorithm, or if he thought "hey, I can sell this shit! fuck the world! show me the money!", he fails at acknowledging that it doesn't really matter whether you created one of the best algorithms for image recognition: what matters is if you can do it again. What I'm talking about is, what if instead of selling one of the golden eggs, you give that for free and create a reputation for yourself worldwide, so more people will be willing to hire the golden egg's goose? Anyway.. Somewhere, Richard Stallman is smiling.. and I'm happy for that.

mrleinad 16y ago
Also, I predict that after this source code leak, the link to the source code will be put back at his site.
- alexsb92 16y ago
  And you were right.
helwr 16y ago
Some people make things just because they love to make things.
- lwat 16y ago
  Well he got a PhD for this one, that's something.
maak 16y ago
Let's not jump to conclusions...

helwr 16y ago

Official source: https://github.com/zk00006/OpenTLD https://github.com/zk00006/OpenTLD