Image recognition over a raw image

Hi,

I would like to ask a question about my project. Right now, I am implementing a ROS communication between one of the ABB robots with Unity by the use of the ROS# package (https://github.com/siemens/ros-sharp). And instead of using a camera device connected to my computer (Windows), I would like to use the camera connected to ROS. I got a way of showing the camera that is running over ROS in the Unity environment, but I do not know how to implement the image recognition over it.

Is there a way of implementing the rendering from the "image target" over a sequence of raw images? or on the other hand, does Vuforia only recognize camera devices from the computer or from external cameras(https://library.vuforia.com/articles/Solution/external-camera.html)?

Thank you so much for your attention.