What is Augmented Reality(AR) Technology?

What is Augmented reality Technology?

Augmented reality is the ability to insert an overlay digital and virtual information into the real world.That’s so geeky definition, but what it actually meant is:Augmented reality helps to enhance the real world with a set of magical virtual objects in it.When a person’s real environment is supplemented or augmented with computer-generated images usually motion tracked then that’s AR.

Augmented Reality Definition

An enhanced version of reality where live direct or indirect views of physical real-world environments are augmented with superimposed computer-generated images over a user’s view of the real-world, thus enhancing one’s current perception of reality.

Augmented Reality examples

If you have ever watched Ironman series, then you’ve already experienced augmented reality. All those things that pop up inside Ironman’s helmet are created using AR.

Not just in Ironman, by knowingly or unknowingly you’ve already used and harnessed the power of AR in your day to day life. Here are few examples.

Gaming: Augmented reality is first used in Gaming industries. Pokémon is the first AR game that grabbed almost all people’s attention. This game literally made people crazy.

Car industry: Now even car companies are taking advantage of AR to repair their customer’s car. Mechanics will able to view the parts of the cars overlaying.
They can easily mantle or dismantle the spare parts. This will save time and money.

Healthcare: Now surgeons use AR applications to operate complicated operations. AR app will give them a better visibility of the human body which makes them easily operate.

Unlike virtual reality, which requires you to inhabit an entirely virtual environment, augmented reality uses your existing natural environment and simply overlays virtual information on top of it. As both virtual and real worlds harmoniously coexist, users of augmented reality experience a new and improved natural world where virtual information is used as a tool to provide assistance in everyday activities.

Types of Augmented Reality

Marker Based Augmented Reality

Marker-based augmented reality (also called Image Recognition) uses a camera and some type of visual marker, such as a QR/2D code, to produce a result only when the marker is sensed by a reader. Marker based applications use a camera on the device to distinguish a marker from any other real world object. Distinct, but simple patterns (such as a QR code) are used as the markers, because they can be easily recognized and do not require a lot of processing power to read. The position and orientation is also calculated, in which some type of content and/or information is then overlaid the marker.

Markerless Augmented Reality

As one of the most widely implemented applications of augmented reality, marker less (also called location-based, position-based, or GPS) augmented reality, uses a GPS, digital compass, velocity meter, or accelerator which is embedded in the device to provide data based on your location. A strong force behind marker-less augmented reality technology is the wide availability of smartphones and location detection features they provide. It is most commonly used for mapping directions, finding nearby businesses, and other location-centrist mobile applications.

Projection Based Augmented Reality

Projection based augmented reality works by projecting artificial light onto real world surfaces. Projection based augmented reality applications allow for human interaction by sending light onto a real world surface and then sensing the human interaction (i.e. touch) of that projected light. Detecting the user’s interaction is done by differentiating between an expected (or known) projection and the altered projection (caused by the user’s interaction). Another interesting application of projection based augmented reality utilizes laser plasma technology to project a three-dimensional (3D) interactive hologram-into mid-air.

Superimposition Based Augmented Reality

Superimposition based augmented reality either partially or fully replaces the original view of an object with a newly augmented view of that same object. In superimposition based augmented reality, object recognition plays a vital role because the application cannot replace the original view with an augmented one if it cannot determine what the object is. A strong consumer-facing example of superimposition based augmented reality could be found in the Ikea augmented reality furniture catalogue. By downloading an app and scanning selected pages in their printed or digital catalogue, users can place virtual ikea furniture in their own home with the help of augmented reality.

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