Adding a "Director" trayectory to tracks about multitarget-tracker

[Nuzhny007]

Hi!
If you can to add this lines to this project then I will help you with trajectories postprocessing.

[isra60]

Do you mean a vector of cv::Points ??

[Nuzhny007]

I think this functionality does not apply directly to the tracker. I propose to design the current tracker as a shared library, and for your task to make a separate test case. I'll try to implement it this evening.

[Nuzhny007]

I make new PL: #104
Now project contains 3 folders: shared library with shared tracking library, previous examples that used this library and new cars counting example.
And in the future I will add lines in this new example.
Line is a two corners (cv::Point2f) in relative coordinates from 0 to 1. I can implement method that will check intersection with line. It will be enough?

[isra60]

mmmm.. maybe I don't explain well. I mean it's ok to have a counting car project . But what I want it that tracks has to follow a certain trayectory to avoid false detection (like image artifacts) that just appear on image and dont have a complete trayectory-

[Nuzhny007]

Hi!
I implemented code with line intersection: #105
You can see how it works: https://www.dropbox.com/s/ztd4eyi04bz3z00/counting2.avi?dl=0
And You can implement logic with road marking based on this functionality. It would be enough?

[isra60]

Yeah it's great but thats not the problem i'm refering to.
Yo can see in this video. You have correct detections of car but then The thermal image changes rapidly and then you have artifacts in the image that can lead to wrong line intersection. That last box does not have a real trayectory just appear and then cross the screen.

https://drive.google.com/file/d/1j5Z5egFY-6kYFUYe7uwwLeDv0X6LOt5n/view?usp=sharing

[isra60]

Also I have seen on your last pull request some changes involved Kalman filter code, is that related to this?
Thanks in advance

[Nuzhny007]

That last box does not have a real trayectory just appear and then cross the screen.

And you can create 2 road lines: https://github.com/Smorodov/Multitarget-tracker/blob/master/cars_counting/main.cpp#L44
And check intersection with they: no intersections - valid car. This lines aren't only for cars counting - they can be used for any logic and conditions.

Also I have seen on your last pull request some changes involved Kalman filter code, is that related to this?

Yes and no. After testing tracker on any videos with different parameters it was founded some bug. They was fixed.