Jun 15, 2018

Augmented Reality vs. Virtual Reality

Augmented reality (AR) is the result of using technology to superimpose information, such as sounds, images, and text on the world we see. It adds to what we see. An example is Google glasses. It displays videos and sounds onto the screen. The heads-up displays in many fighter aircraft shows information about the attitude, direction, and speed of the plane, and can show which objects in the field of view are targets. Some cars have begun showing a digital display on the windshield so drivers do not need to look down at the dash.
Phones and tablets offer AR, such as the Star Walk app, which allows a user to point the camera at the sky and see the names of stars and planets superimposed on the image. Another app called Layar uses the smartphone's GPS and its camera to collect information about the user's surroundings and displays information about nearby restaurants, stores, and points of interest. Another example is an app that allows translation of signs into a user's own language.

Virtual reality (VR) means computer-generated environments for you to interact with, and be immersed in. It replaces what we see by using a head set to block out the real world. As you move your head, the picture or video moves in the same direction, allowing a person to view a 360 degree virtual scene.

Researchers are developing holograms, which can take VR and AR a step further, since holograms can be seen and heard without a headset.

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