# Setup

### Adding Markers

{% hint style="warning" %}
The placement of these markers should not be too far away from each other. Ideally, the camera should be able to see at least 4 of these markers per observation.
{% endhint %}

* Add a Measurement Point from the object tree, and place this point at the coordinate that matches the coordinate of a physical marker in the physical world.
* Repeat this process for all of your measurement points.

{% hint style="info" %}
It is a good idea to re-name these measurement points to something that is meaningful and easily identifiable.
{% endhint %}

### Adding the Alignment with Marker Tool

Once everything has been setup and the camera object is linked properly to the incoming data, the Lens Calibration process can begin.

Go to the camera object, and under the Tools tab, add a new tool under the Calibration folder. Depending on the different situation, a different tool can be used. For more information, click here.

![](/files/09e1PjGFsqVyqFl4UEjI)

There are different Calibration modes available depending on the situation with the tracking system and the setup.

| Name          | Description                                                                                                                |
| ------------- | -------------------------------------------------------------------------------------------------------------------------- |
| Tracking      | This mode is mainly used for a camera that can be tracked as it moves to different locations in the venue                  |
| Nodal Origin  | This mode is only used when lens needs to be swapped from the camera body and the nodal origin has been shifted slightly   |
| Rotation Only | This mode is mainly used for a camera that is on a tripod / pedestal and would only be rotating on top of a fixed location |
| Pan Tilt Head | This mode is mainly used for Pan Tilt Head like PTZ cameras only.                                                          |

Once the correct mode is chosen for the setup that you have, can click on the “Image Calibration” button to open up the Image Calibration Wizard, and select the video signal source of the camera from the Image Provider.


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