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Original question:

CCS/IWR1443: What algorithm is used to determine the target information of people counting demo?

CCS/IWR1443: About the EKF in pplcount demo

user5903056
Intellectual 910 points
Part Number: IWR1443

Tool/software: Code Composer Studio

Hi,

I would like ask whether the EKF is used in the pplcount demo instead of KF? Is it because that the input of tracking algorithm is in polar coordinate, which is nonlinear? If I want to add the tracking algorithm on the zone occupancy demo of IWR1443, which means the input of tracking algorithm is in the Cartesian space, whether it is okay to use Kalman Filter instead of the extended version?

Thanks in advance!

Regards,

Jie

  • 0
    TI__Mastermind 28055 points

    Hi,

    This paper discusses why EKF is used. My recommendation is to simply convert the returned coordinates to polar, so that gtrack can accept that input.

    Regards,

    Justin

  • 0 in reply to Justin Curewitz
    Intellectual 910 points

    Hi Justin, 

    Thanks for your reply!

    I have some further questions based on your recommendation. Because I notice IWR1443 doesn't have DSP to process the tracking algorithm, I decided to realize the gtrack by Matlab code. But you suggest I can simply convert the returned coordinates to polar and feed them to the gtrack. I want to know whether I can directly call the gtrack module for IWR1443? Does that mean the tracking function can also be implemented in firmware for IWR1443?

    Regards, 

    Jie

  • 0 in reply to user5903056
    TI__Mastermind 28055 points

    Hi Jie,

    The tracking algorithm runs on the Cortex R4F in all of the applications TI has released. So it can be fit on the Cortex R4F along with the Signal chain, you will probably have to make some allowances for memory.

    Regards,

    Justin