By Akilesh Manchikanti | 13th November, 2020 | 7 min Read
Augmented Reality has been around for a while. Back in 1968, Ivan Sutherland was the first person who created the first head mounted display.The term Augmented Reality was coined by Boeing researcher Tom Caudell in the year 1990.
The entire world is translating, breaking the communication barriers and creating new sensory awareness that makes seeing;hearing;tasting and touching brand new. Wearable devices and computers are becoming powerful and extending human capabilities.
This is called Augmented Reality. Read further to know about it.
This article mainly provides information about Augmented Reality but it’s worth understanding the difference between Augmented Reality(AR) and Virtual Reality(VR) .
In VR, you physically wear a special headset that completely blocks your view of the physical world and replaces it with a computer generated world.
In 1996, Hunter Hoffman and David Patterson developed the first Human Interface technology(HIT) lab. They have designed the first immersive VR world to help patients who suffer from wounds related to burning.
Hoffman explained how VR helps to alleviate pain by distracting them from the present world:
Pain requires conscious attention.The essence of VR is the illusion users have of going inside the computer generated environment. Being drawn into another world drains a lot of attentional resources, leaving less attention available to process the pain signals.
In AR, you still remain in the physical world and virtual objects or scenes enter your field of view by way of a pair of see-through digital glasses,a tablet or a wearable glasses.
You can still see and feel the real world with your senses, and AR digitally enhances it.
Watch this video to understand more about Augmented Reality(AR), Virtual Reality(VR) and Mixed reality(MR)
AR has really developed over the last few years. From attractive snapchat filters to interactive and immersive weather reports for fighter pilots in order for them to find their targets during the day or night, AR has proven as a powerful aid for various industries such as manufacturing and as well as to the general public.
The potential of augmented reality is endless.Here are the best examples of Augmented Reality till date.
One of the most popular games in early 2016 is Pokemon go. Although the game had some negative impacts, the application of AR can be visualized.
Pokemon Go allows you to catch your favourite pokemon by looking into your mobile phone -superimposing the pokemon into the real world.
This game had an overwhelming success and probably this might be the reason you noticed teens roaming around your neighbourhood looking at their mobile phones.
We have listed a very few applications of AR. However, there are many more industries that are adopting augmented Reality in order to benefit from its capabilities.
Many small and medium sized companies are hesitant to adopt AR as it requires huge investment. Whereas bigger organizations like BMW have started using Augmented Reality to differ from their competitors.
To show relevant information to the user AR uses computer vision, simultaneous Localization And Mapping(SLAM) and depth sensors(Sensors that are used to measure the distance to an object). This allows cameras to see, collect and process relevant content and show it to the users.
Computer vision is used to understand the world around the user. Once the environment is known, this allows to process digital content that is relevant to the user. Once the digital content is created , it needs to be displayed to the user in a realistic way and in such a manner that it is part of the real world.This is called rendering.
Augmented Reality can be divided into four 4 main phases:
Now lets us break it down and understand with the help of an example:
For instance imagine that you are at a new place and using AR navigation to navigate around.
When you place your phone, computer vision is used to process the surroundings from the image which is captured by the camera.
Now the rendering module augments the original frame with digital content making sure it precisely overlaps your frame and displays the information. In the figure above the digital content such as distance to nearest transit or a restaurant is provided. For this it uses 3D position and orientation determined by computer vision to properly orient the information.
For each and every Augmented reality experience the logic needs to be defined before hand.This specifies the digital content to be displayed when something is recognized. In live AR systems upon recognizing the digital content will be displayed and this step has to be very fast. This is the most challenging task for wearable devices like glasses.
Hardware: Hardware components such as processors,camera,sensors and display are used for AR. Modern computing devices such as mobile phones and tablets are equipped with cameras and various sensors such as accelerometer, gyroscope etc.
EyeGlasses: AR displays can be rendered on devices such as eyeglasses. The eyeglasses are equipped with cameras that capture the environment and re display its augmented view on the eyeglasses
HUD(Head-up Display):A head-up display or heads-up display, also known as a HUD, is any transparent display that presents data without requiring users to look away from their usual viewpoints. HUD’s are usually used in high end cars such as BMW, Audi, Lexus and maymore to assist drivers. This data consists of warning signals, speed, and navigation which are displayed directly on the windshield in the driver’s line of sight.
The different types of AR are: