Question about PTZ

 

I have a question to ask you.

It seems that zoom calibration works well when using a ptz camera.

However, the location calibration does not seem to work (when pan,tilt).

I would like to know the solution.

Attached is the video.
Thanks

https://drive.google.com/file/d/1rai2PlIm5X4i0-jul-7nYLgbrZrJBNP3/view?usp=sharing



   Basictech

 
Profile Image
Eifert@Aximmetry
  -  

Hi,

We suspect that this is still an issue with zoom calibration.
In the video, the real-world object (chair) moves (rotates) with the camera's motion but not as much as the camera. This can mean that the zoom (FOV) is different in the real world as in the virtual world.
You should probably do a new calibration with new calibration points. And follow closely our documentation on Basic Lens Calibration: https://aximmetry.com/learn/tutorials/for-studio-operators/basic-lens-calibration-without-lens-distortion/ 

Or, you didn't add the lens calibration data to your Camera inside Aximmetry Composer:
https://aximmetry.com/learn/tutorials/for-studio-operators/basic-lens-calibration-without-lens-distortion/#using-the-created-lens-data

Warmest regards,

 
Profile Image
Basictech
  -  

Hello.

I tried it again and again.

But the results were the same. (as in the attached video)

I have no idea which part is wrong compared to the manual.

I attached an additional picture.

I look forward to hearing from you soon.

Thanks!


 
Profile Image
Eifert@Aximmetry
  -  

Hi,

You should not set the Zoom Device for the same device as the Tracking device:

(later, you correctly set it up in the Aximmetry composer and you didn't set it as a zoom device)

You should only set Zoom Device if you have a separate encoder that transmits only the zoom values. Since the newest Aximmetry version (2022.1.0), Zoom devices are listed under the Zoom Encoders, you should probably remove your Free-D device from there, as it sends both tracking and zoom data:


Also, you can probably deactivate the External Lens data. Usually, only professional tracking systems send such data, and PTZ cameras don't send such data:

Warmest regards,


 
Profile Image
Basictech
  -  

PTZ Camera Calibration using Aximetry Basic Calibrator.

As shown in the picture, the Virtual floor is not the right size for the studio.

Can you tell me how to do it?

* In addition, is the original Virtual Floor not user-adjustable?

 
Profile Image
Eifert@Aximmetry
  -  

Hi,

The extent of the virtual floor is not adjustable.
However, you can move the markers wherever you want:

There is no reason to move the chair even further away. Having the chair that far away should be enough to do a proper calibration.

Warmest regards,