2. • Introduction
• Working Principle of AR & VR
• Working Principle of AR & VR
• Differences b/n AR & VR
• Application area
3. ❖ We spend a lot of time at screens these days
❖ Computers, smart phones & televisions have become a big part of our life
➢ They are a means to get news, watch videos, use social medias …
❖ Virtual reality (VR) and augmented reality (AR) are two technologies that are changing
the way we use screens, creating new and exciting interactive experiences
❖ Virtual reality uses a headset to place you in a computer-generated world that you can
explore
➢ With virtual reality, you could explore an underwater environment
❖ Augmented reality, on the other hand, instead of transporting you to a virtual world, it
❖ Augmented reality, on the other hand, instead of transporting you to a virtual world, it
takes digital images and layers them on the real world around you through the use of
either a clear visor or smartphone
➢ With augmented reality, you could see fish swimming through the world around
you
➢ The other concept is Mixed Reality (MR), or hybrid reality, which is the
merging of real & virtual worlds to produce new environments &
visualizations where physical & digital objects co-exist & interact in real-
time.
➢ This means placing new imagery within a real space in such a way that the new
imagery is able to interact to an extent, with what is real in the physical world we
know
4. • Augmented Reality (AR) is a perfect blend of the
digital world & the physical elements to create an
artificial environment
o E.g. AR technology helps to display score overlays on
telecasted sport games & pop out 3D photos, text
messages & emails
o AR uses computer vision, mapping & depth tracking in
order to show appropriate content to the user
order to show appropriate content to the user
o This functionality allows cameras to collect, send &
process data to show digital content appropriate to what
any user is looking
o In AR, the user’s physical environment is enhanced with
contextually relevant digital content in real-time
o We can experience AR with a Smartphone or with special
hardware
5. • Virtual Reality (VR) is a computer-generated simulation of an alternate world
or reality
o It is used in 3D movies & video games
o It helps to create simulations similar to the real-world & “immerse” the viewer using
computers & sensory devices like headsets & gloves
o Apart from games & entertainment, VR is also used for training, education &
science
o The focus of VR is on simulating the vision
o The user needs to put VR headset screen in front of his/her eyes, eliminating any
interaction with the real world
Two lenses are placed between the screen & user needs to adjust eyes based on
o Two lenses are placed between the screen & user needs to adjust eyes based on
individual movement of eye & it’s positioning
o The visuals on the screen can be rendered by using HDMI cable connected to PC or
mobile phone
o Speakers, goggles (protection eye glasses) & handheld wearable's can be used to
simulate a real-world experience
o In VR, we can also employ visual, auditory, & haptic (touch) stimulations, so that
the constructed reality is immersive
o These headsets also use a technology called head tracking, which allows you to
look around the environment by physically moving your head
o The display will follow whichever direction you move, giving you a 360-degree
view of the virtual environment
6. Types of VR
At the moment, there are two major types of VR headsets
o The first type has a screen built in to the headset
o These devices connect to a computer and require a pretty powerful system to operate smoothly
o They have great graphics and perform well, but they're also pretty expensive
o A few popular examples of these include the Oculus Rift, the Vive, and the PlayStation VR, which
o A few popular examples of these include the Oculus Rift, the Vive, and the PlayStation VR, which
connects to the PlayStation 4 game console
o Some of these devices come with handheld controllers that track your hands' movements as well,
providing for a more interactive experience
o The other type of headset houses your phone and uses its screen as the display
o These don't require a computer and run completely off of apps on your smart phone
o The graphics and performance levels on these headsets aren't quite as good as those with a built-in
screen, but they do tend to be much cheaper
o Some popular examples include Google Cardboard and the Gear VR
7. Augmented Reality Virtual Reality
The system augments the real-world scene Completely immersive virtual environment
AR user always have a sense of presence in
the real world
In VR, visual senses are under control of the
system
AR is 25% virtual & 75% real VR is 75% virtual & 25% real
This technology partially immerses the user This technology fully immerses the user into
This technology partially immerses the user
into the action
This technology fully immerses the user into
the action
AR requires upwards of 100Mbps BW VR requires at least 50Mbps connection
AR headset is optional VR headset is required
End-users are still in touch with the real-
world while interacting with virtual objects
nearer to them
VR user is isolated from the real world &
immerses himself in a completely fictional
world
It is used to enhance both real & virtual
worlds
It is used to enhance fictional reality for the
gaming world
8. • Education
o Affordable learning materials, avoids money for physical
learning materials (poster, digital illustrations, physical models
& prototypes),
o Allows students to get access & interact with at anytime
o Interactive lessons & higher student engagement
o Medicine
o Reduce the risks associated with minimally invasive surgery
o Reduce the risks associated with minimally invasive surgery
o Better informed decisions about the right treatment & illness
prevention
o Better aftercare
o Medical training & education
o Assistance in medical procedures & routine tasks
o Entertainment
o Music, games, movies (TV), sports
