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On this page
  • Connect the camera to Skynode
  • Software requirements
  • The video2ros service
  • Alternative image resolutions
  • Camera calibration
  • Validate your setup
  1. App development
  2. Resources
  3. Skynode Vision Kit S

Set up the Vision Kit

PreviousSkynode Vision Kit SNextInstall and test a simple vision app

Last updated 8 months ago

Connect the camera to Skynode

Connect the camera to one of the USB ports on Skynode using the provided cable. Attach Skynode to your development PC and power it up as shown in: "".

Software requirements

In AuterionOS versions older than v3.5.6, video2ros is pre-installed.

The video2ros service

This service acquires raw video frames from the camera and makes them available to apps utilising the Auterion SDK Camera API (from v1.2.0). Additionally, it publishes these frames on the /camera/image_raw ROS 2 topic. This topic will be available within any other app or service running on the same device. Configure the video2ros settings according to the table below. To edit the settings, click the gear icon for the video2ros service in the Skynode Web UI and select Settings. Note that different settings are required, depending on the version of video2ros.

Setting
Value

Frame rate

15

Width

1280

Height

720

Device

/dev/videoCV

Input Format

UYVY

Output Format

yuv422

Brightness

0

Contrast

9

Gamma

220

Saturation

16

Sharpness

16

Use Custom Auto Exposure

false

Setting
Value

Frame rate

15

Width

1280

Height

720

Format

YUV422

Device

/dev/videoCV

Alternative image resolutions

The Vision Kit camera supports three resolutions, each with its own maximum frame rate. To use a different resolution, alter the video2ros settings to match one of the combinations below.

Width
Height
Frame Rate

1280

720

15

1920

1080

8

1920

1200

6

Camera calibration

The video2ros service provides an interface for specifying the intrinsic calibration parameters of the camera, if needed.

Please refer to the Camera Calibration documentation for more details.

Validate your setup

To verify that the image topic is being published, you can use the ROS 2 CLI commands within an app or service running on your device. For example, one can check the ROS 2 topic list directly from the video2ros service by executing the commands shown below:

# SSH into Skynode
pc> ssh root@10.41.1.1

# Open a shell in the video2ros service's Docker container
host> docker exec -ti com.auterion.video2ros.video2ros /bin/bash

# Source ROS 2 and list the available topics
video2ros> source /opt/ros/humble/setup.bash
video2ros> ros2 topic list

Go to the next page to install and run an example app making use of the Vision Kit.

The Vision Kit requires that the video2ros app and app-base-v2 are installed on Skynode. These can be downloaded from .

Verify the presence and status of these two apps on the Apps page of the Skynode Web UI on , as shown below.

Auterion Suite
http://10.41.1.1/apps
Connecting to a device
The Apps page in the Skynode Web UI, showing the app-base-v2 app and video2ros service.