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What-is-Augmented-Reality

 

What is Augmented Reality

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Introduction-

Augmented reality is made up of the word “augment” which means to make something great by adding something to it. Augmented reality is a method by which we can alter our real world by adding some digital elements to it. AR Enriches Perception with Virtual Elements in the Physical World i.e. to bring computer generated objects into the real world, which only the user can see. Users can see their products in 3D in a real-life environment and in real-time through tablets or smartphones to drive sales and improve user engagement. This app is available on both, IOS and Android platform, ARCore launched by Google on Android operating system or ARKit is launched by Apple for iOS operating system.

Augmented reality combines real and computer-based scenes and images to deliver a unified but enhanced view of the world or say AR allows the user to see the real world, with virtual objects superimposed upon or composited with the real world.

Augmented reality apps are written in special 3D programs that allow the developer to tie animation or contextual digital information in the computer program to an augmented reality "marker" in the real world. When a computing device's AR app or browser plug-in receives digital information from a known marker, it begins to execute the marker's code and layer the correct image or images. Customers can view the images in 3D by rotating them and viewing all the augmented content before deciding to buy.

AR applications for smartphones typically include global positioning system (GPS) to pinpoint the user's location and its compass to detect device orientation. AR devices have a display, input device, sensor, and processor. These devices can be monitors, head-mounted displays, eyeglasses, contact lenses, gaming consoles, and smartphones, among others. An example of this is an app on your cell phone that turns on the camera and overlays information about the things and places it is pointed at.  A scene might include the date of construction for the building the camera is pointed at, along with local weather information.

   
There are 4 types of augmented reality-
  • Marker-based AR-  Marker-based augmented reality can be called Object/Image Recognition, uses a camera and some type of visual marker, such as a QR/2D code, to produce a result, 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. Simple patterns like QR code are used as the markers, because they can be easily recognized and do not require a lot of processing power to read.
  • Marker-less AR- Marker-less augmented reality also called location-based, position-based, or GPS, uses a GPS, digital compass, velocity meter, or accelerometer 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-centric mobile applications.
  • Projection-based AR- 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 AR- 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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