In this, it presents monitors that project the virtual environment, and this reacts the commands of the controls. In RV of Projection the user is of the environment virtual, but if it communicates with it, the personages or objects of the virtual environment. This system, the Videoplace, captured images of the user and projected them in a great screen that represented the virtual world, and in this the users could interact ones with the others or objects. The Enhanced or Increased Reality uses visual devices transparent prisoners the head of the user, and virtual information or models are projected on these devices. In this type of RV, the virtual environment if mixture to the real world, therefore as displays the user is transparent does not leave of enxergar the real world.
These displays transparent are called head-up-displays (HUDS). In Telepresena remote cameras of video and microphones are used to deeply involve and to project the user in the virtual world. As example the control of robots is had and planetary exploration, also has research for use in medical applications. In surgical interventions; doctors already use cameras of video handles optical-fiber to visualize the bodies of its patients. Through the RV it can literally enter in the patient going direct to the interest point and/or inspect the operation made for others.
In the Displays Visually Connected the images they are shown directly the user, who must be looking at for a device that folloies the movements of its head. Generally it allows to sound stereo, will count to on special sensors, for detention of the movements of the head, this information is used in the feedback of the shown image. This is the classroom of systems generally more associated to the RV. The RV of Table is a subgroup of the traditional systems of RV. On the contrary of the use of head-mounted displays (HMDs), is used great monitors or some system of projection for presentation of the virtual environment.