# Regions Of Interest

The tool supports various shapes for Regions of Interest (ROI) tools to help focus annotation efforts on the most relevant parts of the scene.

{% hint style="success" %} <img src="https://3895963154-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FTcOUG6rfWxqGM0N4db2P%2Fuploads%2FGOAkLkFFY9H0DEt10649%2Fbold_idea_icon.png?alt=media&#x26;token=5e795075-b5f4-4e03-a9dd-c01069ceac8b" alt="" data-size="line"> These ROI tools help streamline the annotation process, reduce visual clutter, and enhance productivity by focusing only where it matters.
{% endhint %}

![](https://content.gitbook.com/content/TcOUG6rfWxqGM0N4db2P/blobs/KdgWlQwbBIbRYdisoWRi/image)

The ROI feature supports:

* Rectangular ROI: Draw rectangular-shaped ROIs by defining the desired dimension.
* Cylinder ROI: Circular ROIs can also be created.
* Multiple ROIs: Create and manage multiple ROI shapes within a single frame.
* Visual Cue: Points inside the defined ROI appear brighter to improve visibility and focus.

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## Use cases

Customers often require annotations in specific areas, such as:

* The lane directly ahead of the ego vehicle – critical for path planning and obstacle detection.
* A designated area on the opposite side of the road – useful for monitoring incoming traffic or specific scenarios.
* A zone equidistant from the ego vehicle across all sides – helpful for uniform object detection analysis.
* Blind spots caused by the ego vehicle’s size or structure – important for safety-critical annotation tasks.

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## Steps to use Regions of Interest

### Cylinder

{% stepper %}
{% step %}

### Enable Regions of Interest

* Navigate to Tool Settings.
* Scroll to the bottom and toggle Regions of Interest to ON.
  {% endstep %}

{% step %}

### Add a cylinder

* Click the ‘+’ button next to Add Cylinder.
* A default 10-meter radius cylinder will be added.
* Adjust the radius as needed to suit your use case.
  {% endstep %}
  {% endstepper %}

{% hint style="info" %}
Tip: Use the ‘+’ icon to add more cylinders/boxes if multiple regions are required.
{% endhint %}

### Box

{% stepper %}
{% step %}

### Enable Regions of Interest

* Navigate to Tool Settings.
* Scroll to the bottom and toggle Regions of Interest to ON.
  {% endstep %}

{% step %}

### Add a box

* Click the ‘+’ button next to Add Box.
* A default 10-meter radius box will be added.
* Adjust the box dimensions as needed to suit your use case.
  {% endstep %}
  {% endstepper %}

{% hint style="success" %} <img src="https://3895963154-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FTcOUG6rfWxqGM0N4db2P%2Fuploads%2FGOAkLkFFY9H0DEt10649%2Fbold_idea_icon.png?alt=media&#x26;token=5e795075-b5f4-4e03-a9dd-c01069ceac8b" alt="" data-size="line"> Users can create Regions of Interest using both cylinder and cuboid shapes, depending on the area and context of annotation.
{% endhint %}