A Seminar PowerPoint Presentation on Microsoft HoloLens. Working with Holograms

1. Sobhan S Kothari
15MI551
CSE
NIT HAMIRPUR

2. CONTENTS
 Introduction
 What are Holograms?
 What is HoloLens?
 Augmented and Virtual reality
 Hardware
 Inside the HoloLens
 Working
 Features
 Limitations
 Conclusion

3. INTRODUCTION
Microsoft HoloLens is the first self-contained, holographic computer,
enabling us to engage with our digital content and interact with
holograms in the world around us.
Specialized components—like multiple sensors, advanced optics, and
a custom holographic processing unit—enable us to go beyond
the screen.

4. WHAT IS HOLOLENS?
Microsoft HoloLens is the first holographic computer, built into a
headset, Powered by Windows 10.
It is completely unattached ( no wires, phones, or connection to a
PC needed).
Microsoft HoloLens is the fully untethered ,holographic computer
,enabling high definition holograms to integrate with your world.

5. Microsoft HoloLens place holograms in our locations we choose
and our digital content will feel more real than ever before.
Microsoft HoloLens is made up of specialized components that
together enable Holographic Computing.
The HPU processes a large amount(terabytes) of data per second.
All those components enable us to move freely and interact with
Holograms.

6. WHAT ARE HOLOGRAMS?
 A hologram is an object like any other object in the real world, with only one
difference: instead of being made of physical matter, a hologram is made
entirely of light.
 A three-dimensional image formed by the interference of light beams from a
laser or other coherent light source.
 A hologram is a physical structure
that diffracts light into image.
https://www.microsoft.com/en-us/hololens

7. UNDERSTANDING HOLOGRAMS
 Suppose we take a photograph of an apple. We hold a camera in front of it and,
when we press the shutter button to take picture, the camera lens opens lets
light through a single direction and enters a single lens, so the camera can
record only a two-dimensional pattern of light, dark, and colour.
 If we look at an apple, something different happens. Light reflects off the surface
of the apple into our two eyes and our brain merges their two pictures into a
single 3D image. If we move our head slightly, the rays of light reflected off the
apple have to travel along slightly different paths to meet our eyes, and parts of
the apple may now look lighter or darker or a different colour. Our brain
instantly recalculates everything and we see a slightly different picture. This is
why our eyes see a three-dimensional image.

8. CONTD…
A hologram is a cross between what happens when we take a
photograph and what happens when we look at something for
real. Like a photograph, a hologram is a permanent record of the
light reflected off an object. But a hologram also looks real and
three-dimensional and moves as we look around it, just like a real
object. That happens because of the unique way in which
holograms are made.

9. AUGMENTED AND VIRTUAL REALITY
http://www.yantramstudio.com

11. SO LETS SEE WHAT'S INSIDE
HOLOLENS? Cameras
 Computer
 Lenses
 Vent
 Sensors
 Buttons
 Speakers
 Projectors

12.  Camera:- HoloLens depth camera has a field of vision
that spans 120 by 120 degree, so it can sense what your hands are
doing even when they are nearly outstretched.
 Computer:- HoloLens is not just a visor, it is a computer on its own. HoloLens contain CPU,
battery, GPU and first of its kind HPU(holographic processing unit).
 Lenses:- They are made up of three layers- blue, green and red. The holographic images are
produced in these lenses.
 18 sensors flood the brain of the device with terabyte of data every seconds. These also
include accelerometer, gyroscope, magnetometer, retina sensor.

13.  Motion sensors detect wearers movement.
 The sensors can also see wearers hands, the hands are an Input system. User can
interact with whatever he sees by just touching it.
 Wearer also give gesture as input sensor enables the tracking of user movement.
 Vent:- the device is more powerful than a laptop but won’t overheat- warm air
flows to the sides, where it vents up and out.
 Buttons:- on the right side buttons allow user to adjust the volume and to
control the contrast of the hologram.

15. Ambient
Light
sensor
2MP Photo/HD Video Camera
Depth Camera
IR Camera
Hands Tracking +Surface Reconstruction + Object Position
4 Environment Understand Cameras
Gray Scale Camera
Create Map of Room

16. Battery: 16,500 mWh
Weight: 579g
• Memory
• Processor
• Graphics Processing Unit
• Custom made Holographic Processing Unit

17. WORKING
Microsoft HoloLens has User Interface so it takes voice , gaze and
gestures as input command.
Then internal computer works on input commands.
Now projection of hologram, for projection HoloLens use the
HUE(head up display) method two Nano projector located at
each side of head and semi transparent visor which reflect the
image as light on users eye.

18. WORKING (CONTD…)
The retina sensor will track our movements, watch your gaze
and transform what you see by blasting light at your eyes (it
doesn't hurt).
The goggles also have a camera that looks at the room, so the
HoloLens knows where tables, chairs and other objects are.

19. FEATURES
Microsoft HoloLens brings high-definition holograms to life in
our world, where they integrate with our physical places,
spaces, and things.
Our digital content and creations will be more relevant when
they come to life in the world around us.

20. FEATURES(CONTD…)
Explore places we have never been :- Scientists at NASA's Jet
Propulsion Laboratory will soon be exploring Mars using
holograms of Mars Rover images.
New ways to Teachand Learn :- It’s easier to show than to tell,
so do both.
These show images only the wearer can see. Everyone else will
just think you're wearing goofy-looking glasses

21. LIMITATIONS
There are 2 main limitations of HoloLens:-
 HoloLens need much sensitive gestures of hands to control.
 Less viewing, working and holographic content angles.

22. CONCLUSION
Microsoft HoloLens is more than a simple head-up display,
and its transparency means we never lose sight of the world
around us. High-definition holograms integrated with our
real world will unlock all-new ways to create, communicate,
work, and play.

23. REFERENCES
 http://www.yantramstudio.com
 http://www.augment.com
 https://www.microsoft.com/en-us/hololens
 https://en.wikipedia.org/wiki/Microsoft_HoloLens

24. THANK YOU.
YOU CAN CHANGE THE WORLD,
WHEN YOU CHANGE THE WAY YOU SEE THE WORLD.