# Basics

In this part, you will load a video, add your first blocks, connect sockets, run one frame at a time, and select the golf ball as a reference.

{% stepper %}
{% step %}

### Download the sample video

Download the sample video below.

{% file src="/files/La3aUpMZcBZ3rffKrjGz" %}
{% endstep %}

{% step %}

### Add the Video block

Return to AugeLab Studio and drag the **Video** block from the blocks bar into the scenario.

![](/files/gs4Db1bBsRc9N54oqoeS)

Click **Select Video File** inside the block and load the video.

![](/files/b45jI0CWDvaXtGMVlcpo)

Disable real-time streaming by clicking **Real-time**.

![](/files/gZbFmPUK6xB9za2gcSMT)
{% endstep %}

{% step %}

### Add Image ROI Select

Go to **Detections/Shapes** in the blocks bar and drag **Image ROI Select** into the scenario.

![](/files/8bD4C8EYa9ZuBfiMc8Fh)

When it is first added, the block is empty because no image is connected yet.

![](/files/r555V1qUNcJryI2ORUYB)
{% endstep %}

{% step %}

### Connect the blocks

Click the **Image** output socket of the **Video** block.

![](/files/SyahtfyLuFieeAlo0pyE)

Move the cursor to the **Image** input socket of **Image ROI Select** and click again to create the connection.

![](/files/oHkpTjgv9WmtenJ3w95b)
{% endstep %}

{% step %}

### Run one frame

Press **Run Step** from the menu bar to process one video frame.

![](/files/MEEaXJqNJmG7Okmu91Tt)

You should now see the frame in the ROI block.

![](/files/ximTuhlq7nbcIIT2nti1)
{% endstep %}

{% step %}

### Select the golf ball

Click, drag, and release around the golf ball to define the ROI.

![](/files/nEtRj6QTcjsMbF7XEUcj)

This selected area will be used as the reference in the next part.
{% endstep %}

{% step %}

### Move and zoom the scenario

Press and hold the middle mouse button to move around the scenario.

![](/files/99VD5Ln1bn3pttKtKPZF)

Use the mouse wheel to zoom in and out.

![](/files/DxI5irTEEPvm5xmz3y5n)
{% endstep %}
{% endstepper %}

You now know the basics: adding blocks, connecting sockets, running a step, selecting an ROI, and navigating the scenario. Continue with the detection page.


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