tracking people using kalman filter with opencv

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Hi, I want to do my project of tracking people using kalman filter. I know theoretical how it works. Can you show me sample tracking people code with kalman filter in opencv.

Posted 12-Jan-14 17:08pm

Member 10366626

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[no name] 12-Jan-14 23:39pm

If only life were that simple. Have you posted this question at opencv.org? More importantly have you tried Google?

Member 10366626 13-Jan-14 0:53am

Can u please give me some hint abt how to use kalman filter in my application. What i should add for

measurement(0)
measurement(1)

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User 59241 · Accepted Answer · 2014-01-12T19:34:00

Solution 1

I don't think you have done enough work on this yourself. It is not simple stuff and this site is not for getting boilerplate code that you just slots into your project.

You can begin by reading this:
http://dasl.mem.drexel.edu/~noahKuntz/openCVTut9.html[^]

This gives you a place to start coding:
http://www.morethantechnical.com/2011/06/17/simple-kalman-filter-for-tracking-using-opencv-2-2-w-code/[^]

Posted 12-Jan-14 19:34pm

User 59241

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Member 10366626 14-Jan-14 23:07pm

I am getting the error related to cvRand, should i use any header file for this.
error:cvRand was not declared in this scope
cvRandSetRange was not declared in this scope
cvRandInit was not declared in this scope

Member 10366626 15-Jan-14 4:23am

I am able to solve the error myself. I have added the proper the header

Member 10366626 21-Jan-14 4:38am

I want to create arrays to hold the x and y co-ordinates.
The below code:
CvSeq* circles = cvHoughCircles( gray, cvCreateMemStorage(0),CV_HOUGH_GRADIENT, 2 , gray->height/6, 3 );
printf ("%d circles detected\n", circles->total);
int *px =new int[circles->total];
int *py =new int[circles->total];
if(circles->total > 0) {
int i = 0;
float * p = (float*)cvGetSeqElem( circles, i );
//px[i] is the X co-ordinate of the center
//py[i] is the Y co-ordinate of the center
px[i]=cvRound(p[0]);
py[i]=cvRound(p[1]);
int
radius = cvRound(p[2]);

Member 10366626 21-Jan-14 4:40am

I want to create arrays to hold the x and y co-ordinates.
The below code:
CvSeq* circles = cvHoughCircles( gray, cvCreateMemStorage(0),CV_HOUGH_GRADIENT, 2 , gray->height/6, 3 );
printf ("%d circles detected\n", circles->total);
int *px =new int[circles->total];
int *py =new int[circles->total];
if(circles->total > 0) {
int i = 0;
float * p = (float*)cvGetSeqElem( circles, i );
px[i]=cvRound(p[0]);
py[i]=cvRound(p[1]);
int radius = cvRound(p[2]);

This will draw a circle. Can u please tell me how can i create lines instead of circle.