A seminar on Virtual Keyboard by the Department of AOT MCA(5th sem) Students(Tapas Mukherjee,Gopal Krishna Talukder).

1. Presented By:-
Tapas Mukherjee
&
Gopal Krishna Talukder
Department
of
MCA

2. INTRODUCTION
Touching Typing Device
Compact and Faster
Uses Sensor Technology And AI
Uses Infrared Camera to Interact
Finger Tracking Based Interface
Works On Any Surface
Used When Normal Keyboard Fails

3. QWERTY kEYBOARD
QWERTY is the most
common keyboard
layout on English-language
computer
and typewriter
keyboards.
The most common keyboards are
101-key Enhanced keyboard
104-key Windows keyboard
82-key Apple standard keyboard
108-key Apple Extended keyboard

4. ON-SCREEN QWERTY kEYBOARD
Powerful Tool
Type Right Away
Use Different Templates
Used to Send Messages to Window
Float on Desktop
Used For Urgent Text

5. VIRTUAL kEYBOARD
Virtual keyboard is just another example of
today's computer trend of smaller and faster.
Virtual Keyboard uses sensor technology and
artificial intelligence to let users work
on any surface as if it were a keyboard.

6. VIRTUAL kEYBOARD
Virtual Devices have developed a flashlight-size
gadget that projects an image of a
keyboard on any surface and let’s people
input data by typing on the image.
The Virtual Keyboard uses light to project a
full-sized computer keyboard onto almost
any surface, and disappears when not in
use.
The device detects movement when fingers are
pressed down.

7. MODULES OF VIRTUAL KEYBOARD
This system comprises of three modules
1. The sensor module
2. IR-light source and
3. The pattern projector

8. MODULES OF VIRTUAL KEYBOARD
SENSOR MODULE
The Sensor Module serves as the
eyes of the Keyboard Perception
technology.
Keystroke information processes and can
then be output to host devices.
The Sensor Module operates by locating the user's fingers
in 3-D space and tracking the intended keystrokes.

9. MODULES OF VIRTUAL KEYBOARD
IR-LIGHT SOURCE
The Infrared Light Source emits
a beam of infrared light.
This helps in recognizing the hand
movements and the pressing of
keys.
This light beam is designed to overlap the area on which
the keyboard pattern projector or printed image resides.

10. MODULES OF VIRTUAL KEYBOARD
PATTERN PROJECTOR
The Pattern Projector or optional printed image
presents the image of the keyboard.
This image can be projected on
any flat surface.
The projected image is that of a standard QWERTY keyboard,
with all the keys and control functions as in the keyboard.

11. TYPES VIRTUAL kEYBOARD
Types Of Virtual Keyboard
1. VKB Projection
2. Sense Board
3. Scurry and
4.V-Type

12. TYPES VIRTUAL kEYBOARD
VKB Projection
Project laser image of a
keyboard on a flat surface .
Infrared cameras detect key
strokes .
Surface Impact Of
finger serves as a
typing feedback .

13. TYPES VIRTUAL kEYBOARD
SENSE BOARD
Consist of two rubber pads that slip into user hand .
Mussel movement in the palm are sensed .
Translate movement into key strokes by pattern recognized
method .

14. TYPES VIRTUAL kEYBOARD
SCURRY
Operates computer by moving two
hands in empty air .
Next generation glone like
It allows user to
punch in letters
without keyboard,
scroll up and down
control a cursor.
wearable device .

15. TYPES VIRTUAL kEYBOARD
V-TYPE
Detects key
stroke on air
with a data
glove .
Active finger
tracking method
used.

16. SYSTEM ARCHIRECTURE
The 3D range camera is
placed several cms over
the input surface, with
a well-defined angle
facing the working area.
The size of the working
area, limited by the spatial
resolution of the camera, is
15 cm × 25 cm, which is
comparable to a full-size
laptop-computer keyboard.
The display projector is mounted on the camera, facing the
same area, which would generate the visual feedback for
the keyboard and input information.

17. WORKING ARCHIRECTURE

18. ADVANTAGE
Laser can be projected on any surface or even in air.
Used where Low Noise is Essential.
Typing Does Not Required a Lot of Force.
Touching Type Paradigm can be Adjusted.
Plug and Play Device.
No Driver Software Necessary.
High Battery Life.

19. DRAWBACKS
VKB is Hard To Get Used to.
Typing in Thin Air Requires a Littlie Practice.
Projected Keyboard Should not be Used in
Bright Room.
The Device is Very Costly.

20. APPLICATION
In Operation Theater.
In High-tech Industrial Sector.
Used With Smartphone's, TAB and PAD’s.
In Word Processing, Email and Spread Sheet Tasks.
As a Computer/PDA Input.
Gaming Control
TV Remote Control

21. CONCLUTION
A virtual key boards claim to provide the convenience of
compactness with the advantages of a QWERTY keyboard.
A Virtual keyboard system based on a true-3D optical range
camera.
It is also used in 6th Sense Technology Device in which it
is not depends on surface. The feedback text and/or
graphics may be integrated with such projector, thus
enabling truly virtual working area.
Thus virtual keyboards will make typing easier, faster, and
almost a pleasure.

22. REFERENCE
http://en.wikipedia.org/wiki/Augmented_reality
 http://en.wikipedia.org/wiki/QWERTY_keyboard
http://encyclopedia2.thefreedictionary.com/typematic
http://en.wikipedia.org/wiki/Virtual_keyboard
http://whatis.techtarget.com/definition/virtual-keyboard
http://www.scribd.com/doc/27978273/12/Flow-Chart
http://www.webopedia.com/TERM/P/PDA.html