IWR6843: Infinity velocity of points in people counting lab

Kai Yang1

Part Number: IWR6843

In the 3D people counting lab, I once got infinity velocity for some points while x,y,z coordinates are finite in 3D Point Cloud TLV. I was wondering if you ever see the same situation.

Thanks!

Kai

over 5 years ago

0 Vaibhav Mahimkar over 5 years ago

TI__Mastermind 23725 points

Hello

Can you please tell us how did you compute the velocity value and what data did you see from the demo?

Thank you,

Vaibhav

0 Kai Yang1 over 5 years ago in reply to Vaibhav Mahimkar

Expert 1400 points

Hi Vaibhav

Thanks for your quick reply.

The velocity value of 3D points is extracted in the same way as the visualizer in C:\ti\mmwave_industrial_toolbox_4_3_2__win\labs\people_counting\visualizer. I was processing the point cloud based its velocity. At one frame, the velocity of some points are infinity. However, I only see such velocity once in hundreds of tests I have been running. I was wondering if you ever see the same scenario as I did.

Thanks!

Kai

0 Justin Curewitz over 5 years ago in reply to Kai Yang1

TI__Mastermind 28055 points

Hi Kai,

We have not seen infinite velocity points. Since the rarity of seeing this is so low, is it possible that an undetected data transmission error happened in UART?

Regards,
Justin

0 Kai Yang1 over 5 years ago in reply to Justin Curewitz

Expert 1400 points

Hi Justin

It could be, but the x,y,z position of these points look good to me. Let's put this issue on hold now. If I have the same issue in the future, I will let you know.

Thanks!

Kai

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IWR6843: Infinity velocity of points in people counting lab