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OpenCV 4.5 simple optical flow GPU tutorial cuda::FarnebackOpticalFlow

This OpenCV tutorial is a very simple code example of GPU Cuda optical flow in OpenCV written in c++. The configuration of the project, code, and explanation are included for farneback Optical Flow method. Farneback algorithm is a dense method that is used to process all the pixels in the given image. The dense methods are slower but more accurate as all the pixels of the image are processed. In the following example, I am displaying just a few pixes based on a grid. I am not displaying all the pixes. In the opposite to dense method the sparse method like Lucas Kanade using just a selected subset of pixels. They are faster. Both methods have specific applications. Lucas-Kanade is widely used in tracking. The farneback can be used for the analysis of more complex movement in image scene and furder segmentation based on these changes. As dense methods are slightly slower, the GPU and Cuda implementation can lead to great performance improvements to calculate optical flow for all pixels o
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Opencv Multiple People Tracking. It is necessary to be perfect ?

Multiple people tracking 

Opencv tracking of multiple people example video and some ideas about the business behind.. 
I would like to mention that this video is not related on my any curent business. This is just love to computer vision. 

This short blog post should be about something else. 

Multi target tracking

Problem of computer vision business potencial

  • People point to any mistake of algorithm. Mistakes are visible. People dont care if the big data gives you huge statistics error. They are not able to count the milions line of something. 
  • They are able to count what they are really see on video. 
Where is the point. Even the error is visible and sometines huge. This gives you better result than one man counting the people from the window all day long. 
Are you able to track and monitor what every on screen doing and count targets and write the results somewhere. 

No

Do not sell video. Sell the data

This is important. Maybe the most important think. You are provide data about the day activity about the year activity what ever.  
Not the person for one day counting of the trafic on the Prague town center crossing. 

Video delivery or internet of things

You have to solve the problem with stream video delivery to cloud as cheap as it posible. 

There is one think. Internet of thinks. Maybe is better old aproach just manage the computer vision where the camera is located.. Computers are smaller and faster. The video delivery is problem.. You have to deal with so many problems. Insted of transfering just the data. 

Benefits are that the people infront of the monitor just see your mistakes.

Cost effective computer vision 

There is maybe question what is effective. Process the video in cloud has also many advantages. Scales. Updates. Your algorithm is under control. You can handle what ever resolution. This is only issue of the cost of your solution. It is not necesary with some cameras to manage your own HW in that solution. 

I have a lots of idea like that. I spent lots of time not only on algorithm itself. For example another huge topic is 

Self configuration of computer vision algorithm

Yes this one. Not a spend 3 hours or months to make perfect youtube video. There is no reason. 
Algorithm should be somehow self configurating.  And it may not be perfect. Let the rest of the world accept error also in computer vision. 

Have a nice evening and let me know. What do you think. 


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Comments

  1. UnknownMarch 17, 2017 at 10:30 PM

    hello sir, can you share source code for people tracking at binjagermath12@gmail.com

    ReplyDelete
  2. UnknownAugust 8, 2017 at 12:56 AM

    hello sir, can you share source code for people tracking at biencuong.hg@gmail.com

    ReplyDelete
  3. SumanchalisaAugust 18, 2017 at 8:25 AM

    hello sir, please share code if you are willing to sumanchalisa@gmail.com

    ReplyDelete
  4. UnknownOctober 22, 2017 at 10:22 AM

    Can you share your code to luis.j.gutierrez@inn2.cl ... Thank you.

    ReplyDelete
  5. UnknownOctober 31, 2017 at 12:03 PM

    Hi, I'm a computer science student and I'm very interested in your work. Could you please send the code to my email stefanyfer.sf@outlook.com ? Thank you very much.

    ReplyDelete
  6. Baybarshan Ekiz Academic RecordsNovember 14, 2017 at 12:31 PM

    Hi I am student of digital forensic engineering Dept. it's associate to my thesis and i really need this source code my mail adress: baybarshanekiz@gmail.com

    ReplyDelete
  7. UnknownNovember 16, 2017 at 4:06 AM

    Your work very interesting. I want to examine. Could you share source code? mgsenel@gmail.com Thank youu

    ReplyDelete
  8. UnknownDecember 4, 2017 at 11:04 AM

    Hi! I am a computer science student highly interesting in this work! I would be more than happy to look at the source code if you are willing to share it! heinrick.lu@gmail.com

    ReplyDelete
  9. UnknownFebruary 9, 2018 at 8:23 AM

    This comment has been removed by the author.

    ReplyDelete
  10. UnknownFebruary 9, 2018 at 8:25 AM

    I am interested on your project. It will help the advancement of my current project. Would you mind to share your code to fransiskusyoga@gmail.com? Thank you

    ReplyDelete
  11. UnknownFebruary 15, 2018 at 8:44 AM

    hello sir, can you share source code for people tracking at ale7savio@hotmail.com

    ReplyDelete
  12. UnknownFebruary 15, 2018 at 8:44 AM

    This comment has been removed by the author.

    ReplyDelete
  13. UnknownApril 5, 2018 at 3:21 AM

    hello sir, can you share source code for people tracking at s2loves2s2s2@gmail.com thank you

    ReplyDelete
  14. UnknownApril 22, 2018 at 9:12 AM

    hello sir, can you share source code for people tracking at aastha9198singh@gmail.com

    ReplyDelete
  15. amine djeddiApril 25, 2018 at 10:40 PM

    hello sir , i'm ineterested to you work , can you share the code source
    djeddi.amin@gmail.com

    ReplyDelete
  16. UnknownMay 3, 2018 at 6:24 AM

    hello sir , i'm ineterested to you work , can you share the code source
    dongnuik12@gmail.com

    ReplyDelete
  17. UnknownMay 18, 2018 at 12:24 AM

    This comment has been removed by the author.

    ReplyDelete
    Replies
    1. RDJune 28, 2018 at 1:23 AM

      Can you share your code with me?? my email id rashmitaduhdat26@gmail.com
      Thank You.

      Delete
  18. DEWI NUR AINIMay 29, 2018 at 7:50 AM

    I am interested on your project. It will help the advancement of my current project. Can you share the source code at dewi.defira@gmail.com? Thank you

    ReplyDelete
  19. 明儀:)May 29, 2018 at 8:14 AM

    Hi! I am student of civil engineering Dept, and I am studying transportation engineering now. The work you done is associated to my thesis. Would you mind sharing your code at r06521501@ntu.edu.tw? Thank you!

    ReplyDelete
  20. AnonymousMay 30, 2018 at 1:05 AM

    Hello sir, I am a student studying in Robotics. The work your had done is associated to my project. Would you mind sharing your code at arthur960304@gmail.com? Thank you so much!

    ReplyDelete
  21. UnknownJuly 2, 2018 at 3:49 PM

    Hi sir, I am a student studying pedestrian tracking. Would you mind sharing your code at guyiyang95@gmail.com? Thank you so much!!!!!!

    ReplyDelete
  22. UnknownJuly 18, 2018 at 2:32 AM

    Hello! Great result! Our command try to realize system for control of roads. We need in detection tracking and speed of cars, people and etc. Would you mind sharing your code at ph.begaev@gmail.com? Thank you so much!

    ReplyDelete
  23. UnknownAugust 14, 2018 at 2:21 AM

    hello sir, can you share source code for people tracking at kevincho840430@gmail.com

    ReplyDelete
  24. UnknownSeptember 6, 2018 at 6:28 AM

    hello sir, can you share source code for people tracking at a4799400123@gmail.com thank you

    ReplyDelete
  25. UnknownSeptember 17, 2018 at 3:56 AM

    Hello sir can you share the source for people tracking in opencv to madhurimadavuluru569@gmail.com I need this code for my project sir.. Thankyou

    ReplyDelete
  26. UnknownSeptember 30, 2018 at 7:32 AM

    Hello sir,
    Could you please share the source code to m.m.islam039@gmail.com

    ReplyDelete
  27. AlfaNovember 13, 2018 at 3:16 PM

    Hello sir, I am student of computer engineering, and now I am study about tracking for human detection, please share your code for me to solichaalfin15@gmail.com, that is very helpful for me, thank you sir.

    ReplyDelete
  28. UnknownNovember 17, 2018 at 8:52 AM

    I am very interested in your project. It will help me with the projects I am currently learning. Can you share the source code at cayy12y23@gmail.com? Thank you

    ReplyDelete
  29. UnknownJanuary 11, 2019 at 5:32 AM

    Hello sir,
    Could you please share the source code to kobak.rnd@gmail.com

    ReplyDelete
  30. larryMarch 1, 2019 at 1:27 PM

    Great job. Please send me source code blue299@gmail.com.

    ReplyDelete
  31. UnknownMarch 19, 2019 at 3:28 AM

    Oh my god!! . Im a student ( Koeran ) very impressive!! Please... send me source code rnehwls@gmail.com I will very very Thank you!! please.. I beg

    ReplyDelete
  32. saitama123March 30, 2019 at 11:59 PM

    hello sir can you share the code with me ,because were working on something similar it'd of great help to us shettysankalp1997@gamil.com thank you

    ReplyDelete
  33. Adithya RajMay 22, 2019 at 11:52 PM

    hi sir,
    Can u please send me the code to my email id "sendtoadithyaraj@gmail.com" , it would be really helpful for me.

    ReplyDelete
  34. Adithya RajJune 3, 2019 at 11:55 PM

    Could you please send me the source code to "sendtoadithyaraj@gmail.com"

    ReplyDelete
  35. UnknownJune 8, 2019 at 4:04 AM

    Hello, please, could you send me the source code to "aguvexvydd@gmail.com"

    ReplyDelete

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