ip dossee 2011, team 6

Developing Open Source System Expertise in Europe

Interactive Whiteboard

1

Team

LEAD

European

Advanced

Developers

Members:

Yuri Chudnovsky

Andrew Naydyonock

Tuomas Makinen

Mikko Markula

Pedro Fernandez Gonzales

Tomas Rubnicky

Christoph Sackl

Christian Emil Rentzmann Sonne

Maxim Khomiakov

Raul Marin Rodriguez

Vanesa Rodela Torrents


Introduction

• Interactive White Board

• Store pictures

• Load pictures

• Motion control interface

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Contents

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Presentation• Idea

• Implementation

• Summary

Video

Live demo


Usecases

• User administration

• Website external interface

• Client based interface

• Working in sessions

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Usage

• Example:• Seminars – Lectures

• Presentations in general

• Companies, Schools, Medical industries

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Idea

6

An expensive one

Our White board

webcam

White board

projector


Obtaining Input Data

webcam

Input data...

White board

cvQueryFrame();

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Still Frames

webcam

8

Motion phase

Still phase (min 3 sec.)

No motinon in 3 sec.

yields a Still Frame

Still Frame Flow


Still Frames Differences

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GetDiff()

Still Frame Difference Flow


Calibration

10

Calibration chess board


Calibration

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Calibration chess board


Strange Difference Example

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Difference Example

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Smells like corners!

Corner detection is the essential part of IWB


The History of E=mc2

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The initial formula.



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A WILD EINSTEIN APPEARS!



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Those are not the droids we are looking for...



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Corners added.



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But those droids are!



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But those are!

Area detected.



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Getting a capture.



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Tadaaaaaaaa!!!

Developing Open Source System Expertise in Europe 22


Captured Images Are Collected

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Choosing Image to Restore

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Defining the Place for the Image

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Pokemon Restored

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Web Functionality

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• All captured images and still frames are

uploaded to the web server

• Users can look at stored images on the IWB

web site

• Users can preupload images on the web site

to use it during the presentation


User interaction

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Experience

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C++ Programming

• Tomas

• Christian

• Tuomas

• Raul

• Mikko

• Yury

• Andrew


Experience

30

Java web programming

• Christoph

• Pedro

• Maxim

• Andrew

• Yury


Experience

31

System administration

• Vanesa

• Andrew


Experience

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Testing and Memory leak finding

• Raul and others.


Experience

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Documentation

• Vanesa

• Christoph

• Maxim


Experience

34

GitHub usage

• Tomas

• Christian

• Raul

• Yury

• Andrew


Experience

35

Communication

• Everyone!


Finally! Live Demo!

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Any Questions?

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Applause for our team!

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Thank you for attention!

39

ip dossee 2011, team 6

Technology