ROS learning - call the computer camera in rviz

1. Install related software packages

install uvc camera

sudo apt-get install ros-kinetic-uvc-camera

Install image-related feature packages

sudo apt-get install ros-kinetic-image-* 
sudo apt-get install ros-kinetic-rqt-image-view

Remember to replace kinetic with your own ros version.

2. Start ros and call the camera

• Start ros in terminal 1

roscore

• Run the uvc_camera node in terminal 2, and the computer camera starts working

rosrun uvc_camera uvc_camera_node

• View topic messages in Terminal 3

rostopic list

• View the image's info in Terminal 3

rostopic echo /camera_info

• Open rviz to complete the relevant configuration

rosrun rviz rviz

Click "Add" in the lower left corner --> click "By display type" --> click "image" --> click "ok"

Change the parameter of "Image Topic " under "Image" in the left column to " /image_raw "

After configuration, you will find that the image captured by the camera appears in the lower left corner of rviz interface