Can multiple users have their own display?

Different variants of this question have been asked in the past, but I haven't been able to fully understand the answers. Here's my scenario. I would like to be able to have a service account log into a machine and have it's own virtual display/keyboard/mouse that doesn't disrupt the desktop environment of the logged in user. I also need CV and OCR working in this environment. Is that possible? This is on Linux, specifically CentOS-7.