The WorldKit system is an innovative computing interface designed to create adaptable, interactive digital overlays on any surface using a depth camera and projector. It simplifies user interaction by allowing touch events and gestures to be recognized in real-time, enabling applications in various environments like offices and homes. Despite its advantages, such as user-friendliness and affordability, it also faces challenges like limited resolution and accuracy in gesture recognition.

1. Presented By
Relan Akash Sanjay
Under the Guidance of
Prof.S.S.Deore
DEPARTMENT OF COMPUTER ENGINEERING
S.S.V.P.S.’s B.S. DEORE COLLEGE OF ENGINEERING, DHULE.
2013-14
Worldkit System

2. o Introduction
o Ad-Hoc Network in Short..
o Structure
o Basic Methodology
o Features
o Advantages and Disadvantages
o Applications
o Future of Worldkit System
o Conclusion
o Bibliography
Outline
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3. Introduction
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 A form of computing that offers ―a natural way of interacting
with system‖ rather than using the ―traditional user interface‖.
 The persistent goal of research areas such as augmented
reality , and mobile computing is creating interfaces in the
world, where and when we need them.
 It gives the user the potential to create interfaces that can
exist anywhere - even on our own bodies. This next generation
of interface represents a trend known as Digital Overlay.
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4. Introduction
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This trend features ‗virtual‘ controls that are designed to
intuitively appear and disappear as needed, allowing for new
modes of computing, navigation.
 Digital Overlay:
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5. Ad-Hoc Network
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 A wireless ad hoc network is a
decentralized type of wireless
network.
 Basically, an ad hoc network is a
temporary network connection
created for a specific purpose.
 An ad hoc network typically refers
to any set of networks where all
devices are free to associate with any
other ad hoc network device in link
range.

6. Structure
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 Depth Camera: The system consists
of a Microsoft Kinect depth camera
mounted on top of a projector. It
can sense depth within a range of
50cm to 500cm.
 Projector: It uses the Mitsubishi
EX320U-ST short-throw projector
having approximately the same
field-of-view as the depth camera.
A short throw projector with
mounted Kinect

7. Structure
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 CPU: It uses many of the same components found in
everyday desktop computers —
 a 2GHz Intel core i7 processor
 4 GB of RAM
 Wireless communication devices
 Interactor Surface : Applications built upon this system are
composed of one or more in-the world interactors, which can
be combined to create interactive applications.

8. Basic Methodology
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 A core objective of the system is to make it simple for users
to define applications quickly and easily.
 The default interaction paradigm provided by the system
allows users to “paint” interactive elements onto the
environment with their hands.
 A single depth camera can view a large area and be used
to detect touch events on everyday surfaces and projector
to create a live model of the environment.
 After the interactor has been setup, and the elements are
instantiated the interface can be used immediately.

9. Features
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 The Worldkit System has following features:
 Triggering Interfaces and Interface Design
 One-Time Projector / Depth Camera Calibration
 Basic Contact Sensing

10. Features
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 Triggering Interfaces and Interface Design:
 It allows the system to be speech active.
 A free space gesture could be used for example,
a hand wave.
 A smartphone can also be used for triggering the
interfaces.

11. Features
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 One-Time Projector / Depth Camera Calibration:
o As long as depth camera remains rigidly fastened to the
projector calibration is to be done only once.
o Depth sensor is used for automatic detection of new
environments.
o For a permanent environment changes interfaces need to
be redefined by the user.
o The process being extremely light weight can be easily
done by novice users.

12. Features
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 Basic Contact Sensing:
The surface contact sensing is basically used for two
purposes:
 Creation of Interfaces.
 For detecting many interactor types such as touch,
presence or object contact inputs.

13. Features
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Basic Contact Sensing

14. Advantages
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 Large surface area to perform different tasks simultaneously.
 Data manipulation – Selecting, moving, rotating and resizing
is easy.
 User-friendly – Quick and easy to learn and use.
 Economical –Just by using a depth camera and projector we
can paint any surface into a digital touchscreen.
 Reduces users efforts to perform certain tasks in short creates
an environment in which user is more comfortable to work.

15. Disadvantages
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The worlkit system has following notable drawbacks: –
 Firstly, the resolution of sensing and graphics can
be lower than optimal.
 Users may occlude the projector and/or depth
camera during normal operation.
 Hand gesture recognition is sometimes not so accurate
as the resolution of the depth camera is less.

16. Applications
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Office Door

17. Applications
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Living Room

18. Applications
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Simple Office Application

19. Applications
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OmniTouch

20. Applications
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Kitchen Application

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Future of Worldkit System
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 Providing a substantial and complete library of interactors.
 Increasing the variety of applications that could be
supported.
 Emphasis are made on expansion from surface interaction
to free space interaction techniques.
 Advancement in hardware for improving the system
functionality.
 An additional future research area lies in expansion of these
techniques to other modalities.

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Future of Worldkit System
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 Future advancement also includes reducing the size of the
projector and depth camera making the system portable.

23. Conclusion
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Worldkit System is next generation of computing.
It brings a change in the way users interact with
the system, turning any surface into touchscreens
when and where we need it. It allows any user to
naturally interact with computer by gestures and real world
objects. It simply helps the user to bring a part of the
physical world into the digital world.

24. Bibliography
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 Xiao, R., Harrison, C., and Hudson, S. E. WorldKit: Rapid and
Easy Creation of Ad-hoc Interactive Applications on Everyday
Surfaces. In Proceedings of the 31st Annual SIGCHI Conference
on Human Factors in Computing Systems (Paris, France, April 27
- May 2, 2013). CHI '13. ACM, New York, NY. pp879-888.
 Khoshelham, K. and Oude Elberink, S.J. (2012) Accuracy
and resolution of Kinect depth data for indoor mapping
applications. In: Sensors : journal on the science and
technology of sensors and biosensors (2012)2 pp. 1437-1454
 www.chrisharrison.net/index.php/Research/WorldKit
 http://iq.intel.com/iq/35346744/introduction-to-digitaloverlay

25. Worldkit System 2410/7/2013
Thank you…..