• Not Answered

Lucas Kanade optic flow

Prodigy 190 points

Vestaproman

Hello every one,

I have got a question about how to use the "VLIB_trackFeaturesLucasKanade_7x7" function.

I have two successive images of 160 x 160 pixels from a video camera.

I detect the good features to track using VLIB function : "VLIB_harrisScore_7x7"

That work fine.

But after I want to track the points using the Lucas-Kanade method and I same results in outx and x, and outy and y.

But when I try with OPENCV on PC computer I use the Harris VLIB function for corner detection and Lucas-Kanade OPENCV function that work fine.

In the OPENCV function, they use a pyramid image.

Did anyone has an idea how to use correctly the "VLIB_trackFeaturesLucasKanade_7x7" function

Thanks a lot

Jérôme

Prodigy 190 points

Vestaproman

• Nov 26, 2010 3:24 PM
• Reply
• Cancel
• Cancel

• Reply Suggest as Answer Use rich formatting

42 Replies

• Intellectual 1450 points

  

  Senthil Kumar Yogamani

  

  • Nov 30, 2010 10:34 AM

   

  Hello Jérôme,

  Please provide your email id.

  I will share an example demo code for Lucas Kanade function.

  Regards,

  Senthil
  

  
  

  Regards,

  Senthil

  • Reply
  • Cancel
  • Cancel

  • Reply Suggest as Answer Use rich formatting
• Prodigy 190 points

  

  Vestaproman

  

  • Nov 30, 2010 10:55 AM

  In reply to Senthil Kumar Yogamani:

  Thanks senthil,

  Great,

  Here my email adress vestaproman(at)gmail(dot)com

  Thanks a lot

  Jérôme

  • Reply
  • Cancel
  • Cancel

  • Reply Suggest as Answer Use rich formatting
• Intellectual 630 points

  

  Igor

  

  • Feb 4, 2011 12:56 AM

  In reply to Senthil Kumar Yogamani:

  Dear Senthil!

  I have the same question. Please send me demo code for Lucas Kanade function too. My email:  ir@nfosecur.ru.  

  Thank you. 

  • Reply
  • Cancel
  • Cancel

  • Reply Suggest as Answer Use rich formatting
• Intellectual 1450 points

  

  Senthil Kumar Yogamani

  

  • Feb 8, 2011 6:08 AM

  In reply to Igor:

   

  Igor,

  I sent you the demo project.

  But I think it bounced back because of security settings of your mail server.

  Could you provide an alternate email id?

  Regards,

  Senthil

  Regards,

  Senthil

  • Reply
  • Cancel
  • Cancel

  • Reply Suggest as Answer Use rich formatting
• Intellectual 630 points

  

  Igor

  

  • Feb 8, 2011 12:39 PM

  In reply to Senthil Kumar Yogamani:

  Senthil,

  ars-mob(at)mail(dot)ru

  Thank you very much.

  Igor.

  • Reply
  • Cancel
  • Cancel

  • Reply Suggest as Answer Use rich formatting
• Prodigy 120 points

  

  chrigima

  

  • May 30, 2011 12:48 PM

  In reply to Igor:

  Hey Senthil

  
  Same problem here. Would be great if you could send me a demo :)

  marty(at)gmx(dot)ch

  thanks a lot!

  hitsch

  • Reply
  • Cancel
  • Cancel

  • Reply Suggest as Answer Use rich formatting
• Intellectual 1450 points

  

  Senthil Kumar Yogamani

  

  • Jun 7, 2011 6:17 PM

  In reply to chrigima:

   

  Hitsch,

  I sent you the demo project.

  Please let me know if it is useful for you.

  Regards,

  Senthil

  Regards,

  Senthil

  • Reply
  • Cancel
  • Cancel

  • Reply Suggest as Answer Use rich formatting
• Expert 1300 points

  

  weber de souza calixto

  

  • Aug 4, 2011 1:48 PM

  In reply to Senthil Kumar Yogamani:

  Hi Mr. Kumar,

  Could you please send to my email weber@pumatronix.com.br the VLIB's Lucas-Kanade demo code?

  Thank you very much.

  Weber de Souza Calixto

  • Reply
  • Cancel
  • Cancel

  • Reply Suggest as Answer Use rich formatting
• Intellectual 1450 points

  

  Senthil Kumar Yogamani

  

  • Aug 6, 2011 12:57 PM

  In reply to weber de souza calixto:

   

  Hello Weber,

  I emailed you the project.
  Please let me know if it is useful.

  Regards,

  Senthil

  Regards,

  Senthil

  • Reply
  • Cancel
  • Cancel

  • Reply Suggest as Answer Use rich formatting
• Prodigy 70 points

  

  Mohammed Suhayil

  

  • Aug 7, 2011 6:58 AM

  In reply to Senthil Kumar Yogamani:

  hi Senthil,

   

  I'm also trying to implement Lucas Kanade, can you please send me the example. my email id is mohammedsuhayil at gmail dot  com

   

  Thanks and Regards,

  Suhayil.

  • Reply
  • Cancel
  • Cancel

  • Reply Suggest as Answer Use rich formatting