In this paper we will present a complex system of new technology uses in dance and video. It is a

system that allows interaction between the recorded videos and dancing with the help of two computers, four

monitors, webcam, projector and Wii remote. The interaction is happening through the temporal and spatial

manipulation of video outputs and real-time processing of followed movements. For realisation of this project

we used the existing systems, enabling the creation of diversified forms of VJ-ing (Visual Jockey methods),

especially important is the VJ-ing on several monitors at once. Dancers entrance to the video space is allowed

with the interaction through Wii remote, mobile multi-monitors and through the program, which tracks dancers

motion through five markers

Batagelj, Borut

Dovgan, Erik

Klopčič, Miha

Maček, Tina

Vidmar, Kaja

Čigon, Ana

Šinkovec, Miha

English

ePrints.FRI

0:1 virtual-real duelAna Čigon¹, Kaja Vidmar², Tina Maček², Erik Dovgan², Miha Šinkovec², Uroš Klopčič², Borut Batagelj²¹Academy of Fine Arts and Design, University of Ljubljana ²Faculty of Computer and Information Science, University of LjubljanaE-mail: anacigon@gmail.comAbstract – In this paper we will present a complex system of new technology uses in dance and video. It is a  system that allows interaction between the recorded videos and dancing with the help of two computers, four monitors, webcam, projector and Wii remote. The interaction is happening through the temporal and spatial  manipulation of video outputs and real-time processing of followed movements. For realisation of this project  we used the existing systems, enabling the creation of diversified forms of VJ-ing (Visual  Jockey methods),  especially important is the VJ-ing on several monitors at once. Dancers entrance to the video space is allowed  with the interaction through Wii remote, mobile multi-monitors and through the program, which tracks dancers  motion through five markers.Keywords – dance, video, multi-monitor system, VJ (Visual Jockey), Wii remote, interactivity, motion tracking1. INTRODUCTIONThis  paper  presents  the  realization  of  complex video-dance  new  media  show,  which  was  made possible  by  multi-monitor  VJ-ing  system  for interactive dance purposes and with the possibility of intervention by using Wii remote and tracking of colours. The paper is structured as follows. In the second section  the  conceptual  design  of  the  project  is presented.  Also  motivation  for  the  project  is explained,  different  methods of interaction and the required  equipment  for  dance  are  shown  in  the presentation.  The  main  idea  of  “0:1  virtual-real duel” is presented here. In the third section the realization of the program is presented.  In  this section the software tools and hardware equipment used are listed.  Described are also  the  methods  used  to  play  videos  in  multi-monitor installation, start-up method with use of Wii remote and also reading of video for finding a new position of differently colour markers in the picture and the adaptation for a dance show. We will focus primarily on innovation in this part of the project. Conclusion is  given  in section 4.  The paper  is primarily  a  presentation  of  interaction  between dancer  and  video  artist  with  the  use  of  computer technology. 2. INTERACTIVE VIDEO-DANCE SHOW "0:1  virtual-real  duel"  is  a  multi-media performance  which  by using  computer  technology directly links two artistic disciplines and forces  on them  to  interdepend.  By  doing  so  it  explores  the limits  of  perception  of  real  and  virtual  space.  It creates a new always-changing area of movements and images, but at the same time also requires the coexistence of both.The performance includes four mobile monitors with on-command or on-movement shift of videos. Video on one of the monitors is in-fact sensitive to vibration  and  movement.  The  movements  of  the monitor  are  transmitted  to  the  computer  by  Wii remote.   The monitors present  improvement in the entrance of video into a real space, they help create a more complex space, and they are the means of new motion-picture cooperation. The system was designed in such a way that it allows a new type of improvisation. With the dancer and  video  artist  interdependent,  each  provides  the parameters for upcoming changes.2.1. Stage design and equipmentThe  scenography  for  this  show  is  constructed with the help of  already mentioned four monitors, which are placed in solid wooden boxes on wheels. It is possible to stand and walk on these boxes and move  them  around  freely  (Fig.1).  This  allows additional opportunities for the video manipulator to influence on dancers movement and the creation of the combined space,  but  also allows the dancer  to return impact on the video outputs in a very direct way.  The system of  interaction  between the video outputs  to  four  monitors  and  one  projector  is designed so that it requires attention and sensitivity from everyone  involved in the show (video artists and  dancers)  and  brings  to  them  a  new  type  of always-changing space and methods of performance. The event has two parts. First part is the result of training and testing the system with selected videos and defined choreography. In this part all the already tested ways of interaction are shown. In the second part  improvisation  is  going  on  and  is  based  on limitations imposed by one or the other artist (dancer or video artist).Fig.1.  This  figure  shows  the  scenography.  The dancer can move freely between four monitors and move them around and is in this way able to create always  new  arrangements.  In  the  scenography another  projection  is  added  for  the  use  of  colour markers. 2.2. Methods of interactionInteraction  between  dance  and  video  is  made possible on several levels. Firstly the interaction is possible  on a very physical  level  since  the dancer can move the monitors around the stage making in such  a  way  an  impact  on  videos  playing  on  the monitors (Fig.2). He/she can move them apart from each other, even turn them around etc. By doing this he/she  poses  certain  limits  for  the  video  artist. Dancer  can also make an impact  on the  video by using  the  monitor  with  Wii  remote  attached,  by shaking it or turning it to the side [1]. More of this is explained in the continuation.The video artist on the other hand has also many possibilities with which he/she can limit or affect the dancers  performance.  He/she  can  switch  on whatever monitor at whatever time he/she feels like doing  so,  making  in  this  way  a  totally  new environment  for  the  dancer,  who  has  to  adapt. He/she  can  also  use  the  system,  which  follows colours to integrate the movement of the dancer on the stage into his/her video output. More about this is explained later in the paper.Fig.2. This figure shows how the monitors can be moved around the stage and in this way give options to  create  a  more  dynamic  and  always-changing environment.3. REALIZATION For  the  realization  of  this  project  special hardware  was  used.  The  computer  that  runs  this program  has  to  have  two  graphic  cards  with  two VGA outputs or in any other way enable the use of four VGA outputs (graphic card with four outputs, dualhead2go,  triplehead2go,  USB to VGA adapter or similar). Also needed is a Wii remote and for that a  Bluetooth  connection  as  well.  The  applications were made for Windows XP. We had to build a system that would be able to quickly output videos on separate monitors but from just one computer. The options that the manipulator of videos had to have is to choose on which monitor which video is played, when and how many. It also had to include the option of playing a video on all monitors at once, which means that all four monitors had to at times be understood as one large monitor setting. The  application  is  made  with  use  of  several existing  programs.  To  list  all  of  them:  vvvv   for multi-monitor  video  output  and  manipulation  of video through use of Wii remote; Microsoft Visual Studio  2005,  Intel's  open  source  project  OpenCV (Open  Computer  Vision),  interface  between OpenCV  and  MS  Visual  Studio  OpenCVDotNet; Adobe  Flash  CS3  for  video  output  manipulation [2,3]. Since the quality of video processing depends a lot on the format  of videos,  also several  programs were used to edit videos and video formats: Adobe Premier  CS3,  Photoshop  CS3,  Aftereffects  CS3, Windows  Movie  Maker  and  Quicktime  Player Professional.  The  vvvv application  is  able  to  read many  different  formats  of  video,  but  the  chosen codec most suitable for this purpose are H264, xvid and waw9 codec [5].3.1. Choosing the output monitorVideo  artist  is  the  person  that  chooses  which monitor will play a certain video and when. This is made possible with the hardware already mentioned and the application made in vvvv program [4]. The switch between videos can be made by mouse and it includes  the  choice  of  using  all  four  monitors together as a larger screen. This was made possible by vvvv application designed in such a way that it allows a quick and clean switch between videos and at the same time it allows to choose from a wide list of  videos.  Videos  and  complexity  of  application have been adapted to the hardware capabilities, since playing of videos on four monitors, processing data from Wii remote and marker processing  demand a lot of CPU usage. Fig.3. This figure shows how the monitor with Wii remote attached at the back looks like in the dance show. 3.2. Choosing video by Wii remoteThere is also another way of choosing the video and that is by Wii remote. This can though be done only on one monitor. Videos are played depending on  how  the  monitor  (and  by  that  Wii  remote)  is moved or rather shaken (Fig.3.).By shaking the monitor one or several videos are played, which represent a stylized figure shaking. By turning the monitor over to one side another video is played representing a person falling to that side of the monitor (Fig.4.).This application was also made with the use of vvvv program. Fig.4. This  figure  shows  an  example  of  how  the video frames  are  structured  to  be played  as  video when the monitor (and with that the Wii remote) is turned for 90 degrees.  3.3.  Interaction  with the use of  five markers  of different colours  “0:1 virtual-real  duel” multi-media dance show includes  in  its  performance  another  computer  as well,  which  is  used  to  process  the  dancers movements  through  a  webcam.  This  part  of  the computer-based interaction enables the video maker to capture movement from the dancer through five differently coloured markers.Dancers place different markers on their bodies. These can also be the clothes they are wearing. The dance  is  recorded  by the camera,  which sends the video to computer in real-time. The application is developed in Microsoft Visual Studio  2005  and  is  based  on  Intel's  open  souce project  OpenCV  (Open  Computer  Vision),  an interface  between  OpenCV and MS Visual  Studio OpenCVDotNet  and  Adobe  Flash  CS3.  A  C# application  receives  the  video  from  the  camera, processes  pictures  and  tracks  markers.  This application  calls  OpenCV  functions  through OpenCVDotNet.  The  program  returns  the  (x,y) coordinates  of  the  marker,  which  are  written  to  a XML file. The file is then sequentially read by the user  interface  and  visualisation  module,  which  is developed in Flash CS3. Fig.5. This  figure  shows  how  the  connection between movement and virtual representation on the output video can be seen. The  video  artist  interactively  chooses  the representation of a marker in the virtual video dance. The virtual dance is produced as a consequence of real dance. The user defines the virtual space while the dancers dance, so he/she manipulates the virtual dance and its presentation. The application produces a movement of the virtual representations that is in correlation  with the  markers  on the  dancer's  body (Fig.5.,6.). The representation can be a picture or an animated  two  dimensional  sequence,  e.g.  a  movie clip  of  the  dancer  representing  a  pre-recorded movement. The user can also choose the background of the virtual dance and can change the size and the colour of virtual markers.  New pictures and videos for markers and background can be simply added by updating  XML files.  This  application  is  made  for showing  virtual  world  and  virtual  dance  to  the public.  For  more details  see article  “A system for interactive  virtual  dance  performance”  in Proceedings Elmar-2008, Volume 2 of 2, pages from 475 to 478.Fig. 6. This figure shows the video output that is in the show projected by a projector. Video artist has chosen  the background,  icons for  the markers  and selected their sizes and colours.3.4. New adaptations for dance showThe part of the dance show given in the section 3.3. was already presented last year but now it has been transformed to enable the use of the program for a dance show. All the functions of choices that were  made  in  Flash  CS3  and  could  originally  be made by using the mouse  were  transported  to  the selection by keyboard so that there is no unnecessary cursor movement and buttons blocking the view of the  output  video.  Some  other  actions  were  also added  to  the  main  Flash  file  and  of  course  new videos  were  made  for  the  purpose  of  the  dance show.4. CONCLUSIONIn this paper we presented many connections and between  dance,  video  and  technology.  We  also presented a method for interesting use of monitors and Wii remote. Obviously, we can use the program not only in the described fashijn, but also in many other ways. The interactions can be discovered though use and all of the  used  programs  have  many  possibilities  of upgrades  and  adaptation for  other  dance  shows or other artistic or non-artistic uses. ACKNOWLEDGEMENTWe want to thank the Faculty of Computer and Information Science and the Academy of Fine Arts and  Design  at  University  of  Ljubljana  for  helping with the  realization of  this  project.  Special  thanks also  go  to  Peter  Kovač  for  helping  with  the development of vvvv patches and to Nataša Tovirac professional  contemporary  dancer  for  her  dance related contribute. Acknowledgments should also go to  different  Slovene  and  international  forums especially:  http://www.planetaudio.si, http://vvvv. org/tiki-forums.php, http://vjforums.com,  and many other  people  who  provided  us  with  important information that helped us realize this project.REFERENCES[1]  Wii homebrew, Wikipedia information page on reuse of Nintendo's Wii game console hardware, accessories  and  software  for  purposes  outside those  intended  by  the  manufacturer: http://en.wikipedia.org/wiki/Wii_homebrew[2]  Download page of software vvvv:  http://vvvv. org/tiki-index.php?page=Downloads[3]  Information  about  OpenCV:  http://www.710. univ-lyon1.fr/~bouakaz/OpenCV-0.9.5/docs/ [4]  Information on best video codecs for best results in  vvvv:  http://vvvv.org/tiki-index.php?  page= FAQ+Codecs [5]  VJ  Visual  Jockey Software  Comparison: http: //softwarevj.com/

Download page of software vvvv:

Information on best video codecs for best results in vvvv: http://vvvv.org/tiki-index.php?

Wikipedia information page on reuse of Nintendo's Wii game console hardware, accessories and software for purposes outside those intended by the manufacturer: http://en.wikipedia.org/wiki/Wii_homebrew

0:1 virtual-real duel

University of Ljubljana Computer and Information Science ePrints.fri

0:1 virtual-real duel
Ana Čigon¹, Kaja Vidmar², Tina Maček², Erik Dovgan², Miha Šinkovec², Uroš Klopčič², 
Borut Batagelj²
¹Academy of Fine Arts and Design, University of Ljubljana 
²Faculty of Computer and Information Science, University of Ljubljana
E-mail: anacigon@gmail.com
Abstract – In this paper we will present a complex system of new technology uses in dance and video. It is a  
system that allows interaction between the recorded videos and dancing with the help of two computers, four 
monitors, webcam, projector and Wii remote. The interaction is happening through the temporal and spatial  
manipulation of video outputs and real-time processing of followed movements. For realisation of this project  
we used the existing systems, enabling the creation of diversified forms of VJ-ing (Visual  Jockey methods),  
especially important is the VJ-ing on several monitors at once. Dancers entrance to the video space is allowed  
with the interaction through Wii remote, mobile multi-monitors and through the program, which tracks dancers  
motion through five markers.
Keywords – dance, video, multi-monitor system, VJ (Visual Jockey), Wii remote, interactivity, motion tracking
1. INTRODUCTION
This  paper  presents  the  realization  of  complex 
video-dance  new  media  show,  which  was  made 
possible  by  multi-monitor  VJ-ing  system  for 
interactive dance purposes and with the possibility 
of intervention by using Wii remote and tracking of 
colours. 
The paper is structured as follows. In the second 
section  the  conceptual  design  of  the  project  is 
presented.  Also  motivation  for  the  project  is 
explained,  different  methods of interaction and the 
required  equipment  for  dance  are  shown  in  the 
presentation.  The  main  idea  of  “0:1  virtual-real 
duel” is presented here. 
In the third section the realization of the program 
is presented.  In  this section the software tools and 
hardware equipment used are listed.  Described are 
also  the  methods  used  to  play  videos  in  multi-
monitor installation, start-up method with use of Wii 
remote and also reading of video for finding a new 
position of differently colour markers in the picture 
and the adaptation for a dance show. We will focus 
primarily on innovation in this part of the project. 
Conclusion is  given  in section 4.  The paper  is 
primarily  a  presentation  of  interaction  between 
dancer  and  video  artist  with  the  use  of  computer 
technology. 
2. INTERACTIVE VIDEO-DANCE SHOW 
"0:1  virtual-real  duel"  is  a  multi-media 
performance  which  by using  computer  technology 
directly links two artistic disciplines and forces  on 
them  to  interdepend.  By  doing  so  it  explores  the 
limits  of  perception  of  real  and  virtual  space.  It 
creates a new always-changing area of movements 
and images, but at the same time also requires the 
coexistence of both.
The performance includes four mobile monitors 
with on-command or on-movement shift of videos. 
Video on one of the monitors is in-fact sensitive to 
vibration  and  movement.  The  movements  of  the 
monitor  are  transmitted  to  the  computer  by  Wii 
remote.   The monitors present  improvement in the 
entrance of video into a real space, they help create a 
more complex space, and they are the means of new 
motion-picture cooperation. 
The system was designed in such a way that it 
allows a new type of improvisation. With the dancer 
and  video  artist  interdependent,  each  provides  the 
parameters for upcoming changes.
2.1. Stage design and equipment
The  scenography  for  this  show  is  constructed 
with the help of  already mentioned four monitors, 
which are placed in solid wooden boxes on wheels. 
It is possible to stand and walk on these boxes and 
move  them  around  freely  (Fig.1).  This  allows 
additional opportunities for the video manipulator to 
influence on dancers movement and the creation of 
the combined space,  but  also allows the dancer  to 
return impact on the video outputs in a very direct 
way.  The system of  interaction  between the video 
outputs  to  four  monitors  and  one  projector  is 
designed so that it requires attention and sensitivity 
from everyone  involved in the show (video artists 
and  dancers)  and  brings  to  them  a  new  type  of 
always-changing space and methods of performance. 
The event has two parts. First part is the result of 
training and testing the system with selected videos 
and defined choreography. In this part all the already 
tested ways of interaction are shown. In the second 
part  improvisation  is  going  on  and  is  based  on 
limitations imposed by one or the other artist (dancer 
or video artist).
Fig.1.  This  figure  shows  the  scenography.  The 
dancer can move freely between four monitors and 
move them around and is in this way able to create 
always  new  arrangements.  In  the  scenography 
another  projection  is  added  for  the  use  of  colour 
markers. 
2.2. Methods of interaction
Interaction  between  dance  and  video  is  made 
possible on several levels. Firstly the interaction is 
possible  on a very physical  level  since  the dancer 
can move the monitors around the stage making in 
such  a  way  an  impact  on  videos  playing  on  the 
monitors (Fig.2). He/she can move them apart from 
each other, even turn them around etc. By doing this 
he/she  poses  certain  limits  for  the  video  artist. 
Dancer  can also make an impact  on the  video by 
using  the  monitor  with  Wii  remote  attached,  by 
shaking it or turning it to the side [1]. More of this is 
explained in the continuation.
The video artist on the other hand has also many 
possibilities with which he/she can limit or affect the 
dancers  performance.  He/she  can  switch  on 
whatever monitor at whatever time he/she feels like 
doing  so,  making  in  this  way  a  totally  new 
environment  for  the  dancer,  who  has  to  adapt. 
He/she  can  also  use  the  system,  which  follows 
colours to integrate the movement of the dancer on 
the stage into his/her video output. More about this 
is explained later in the paper.
Fig.2. This figure shows how the monitors can be 
moved around the stage and in this way give options 
to  create  a  more  dynamic  and  always-changing 
environment.
3. REALIZATION 
For  the  realization  of  this  project  special 
hardware  was  used.  The  computer  that  runs  this 
program  has  to  have  two  graphic  cards  with  two 
VGA outputs or in any other way enable the use of 
four VGA outputs (graphic card with four outputs, 
dualhead2go,  triplehead2go,  USB to VGA adapter 
or similar). Also needed is a Wii remote and for that 
a  Bluetooth  connection  as  well.  The  applications 
were made for Windows XP. 
We had to build a system that would be able to 
quickly output videos on separate monitors but from 
just one computer. The options that the manipulator 
of videos had to have is to choose on which monitor 
which video is played, when and how many. It also 
had to include the option of playing a video on all 
monitors at once, which means that all four monitors 
had to at times be understood as one large monitor 
setting. 
The  application  is  made  with  use  of  several 
existing  programs.  To  list  all  of  them:  vvvv   for 
multi-monitor  video  output  and  manipulation  of 
video through use of Wii remote; Microsoft Visual 
Studio  2005,  Intel's  open  source  project  OpenCV 
(Open  Computer  Vision),  interface  between 
OpenCV  and  MS  Visual  Studio  OpenCVDotNet; 
Adobe  Flash  CS3  for  video  output  manipulation 
[2,3]. 
Since the quality of video processing depends a 
lot on the format  of videos,  also several  programs 
were used to edit videos and video formats: Adobe 
Premier  CS3,  Photoshop  CS3,  Aftereffects  CS3, 
Windows  Movie  Maker  and  Quicktime  Player 
Professional.  The  vvvv application  is  able  to  read 
many  different  formats  of  video,  but  the  chosen 
codec most suitable for this purpose are H264, xvid 
and waw9 codec [5].
3.1. Choosing the output monitor
Video  artist  is  the  person  that  chooses  which 
monitor will play a certain video and when. This is 
made possible with the hardware already mentioned 
and the application made in vvvv program [4]. The 
switch between videos can be made by mouse and it 
includes  the  choice  of  using  all  four  monitors 
together as a larger screen. This was made possible 
by vvvv application designed in such a way that it 
allows a quick and clean switch between videos and 
at the same time it allows to choose from a wide list 
of  videos.  Videos  and  complexity  of  application 
have been adapted to the hardware capabilities, since 
playing of videos on four monitors, processing data 
from Wii remote and marker processing  demand a 
lot of CPU usage. 
Fig.3. This figure shows how the monitor with Wii 
remote attached at the back looks like in the dance 
show.
 
3.2. Choosing video by Wii remote
There is also another way of choosing the video 
and that is by Wii remote. This can though be done 
only on one monitor. Videos are played depending 
on  how  the  monitor  (and  by  that  Wii  remote)  is 
moved or rather shaken (Fig.3.).
By shaking the monitor one or several videos are 
played, which represent a stylized figure shaking. By 
turning the monitor over to one side another video is 
played representing a person falling to that side of 
the monitor (Fig.4.).
This application was also made with the use of 
vvvv program.
 
Fig.4. This  figure  shows  an  example  of  how  the 
video frames  are  structured  to  be played  as  video 
when the monitor (and with that the Wii remote) is 
turned for 90 degrees.  
3.3.  Interaction  with the use of  five markers  of 
different colours  
“0:1 virtual-real  duel” multi-media dance show 
includes  in  its  performance  another  computer  as 
well,  which  is  used  to  process  the  dancers 
movements  through  a  webcam.  This  part  of  the 
computer-based interaction enables the video maker 
to capture movement from the dancer through five 
differently coloured markers.
Dancers place different markers on their bodies. 
These can also be the clothes they are wearing. The 
dance  is  recorded  by the camera,  which sends the 
video to computer in real-time. 
The application is developed in Microsoft Visual 
Studio  2005  and  is  based  on  Intel's  open  souce 
project  OpenCV  (Open  Computer  Vision),  an 
interface  between  OpenCV and MS Visual  Studio 
OpenCVDotNet  and  Adobe  Flash  CS3.  A  C# 
application  receives  the  video  from  the  camera, 
processes  pictures  and  tracks  markers.  This 
application  calls  OpenCV  functions  through 
OpenCVDotNet.  The  program  returns  the  (x,y) 
coordinates  of  the  marker,  which  are  written  to  a 
XML file. The file is then sequentially read by the 
user  interface  and  visualisation  module,  which  is 
developed in Flash CS3. 
Fig.5. This  figure  shows  how  the  connection 
between movement and virtual representation on the 
output video can be seen. 
The  video  artist  interactively  chooses  the 
representation of a marker in the virtual video dance. 
The virtual dance is produced as a consequence of 
real dance. The user defines the virtual space while 
the dancers dance, so he/she manipulates the virtual 
dance and its presentation. The application produces 
a movement of the virtual representations that is in 
correlation  with the  markers  on the  dancer's  body 
(Fig.5.,6.). The representation can be a picture or an 
animated  two  dimensional  sequence,  e.g.  a  movie 
clip  of  the  dancer  representing  a  pre-recorded 
movement. The user can also choose the background 
of the virtual dance and can change the size and the 
colour of virtual markers.  New pictures and videos 
for markers and background can be simply added by 
updating  XML files.  This  application  is  made  for 
showing  virtual  world  and  virtual  dance  to  the 
public.  For  more details  see article  “A system for 
interactive  virtual  dance  performance”  in 
Proceedings Elmar-2008, Volume 2 of 2, pages from 
475 to 478.
Fig. 6. This figure shows the video output that is in 
the show projected by a projector. Video artist has 
chosen  the background,  icons for  the markers  and 
selected their sizes and colours.
3.4. New adaptations for dance show
The part of the dance show given in the section 
3.3. was already presented last year but now it has 
been transformed to enable the use of the program 
for a dance show. All the functions of choices that 
were  made  in  Flash  CS3  and  could  originally  be 
made by using the mouse  were  transported  to  the 
selection by keyboard so that there is no unnecessary 
cursor movement and buttons blocking the view of 
the  output  video.  Some  other  actions  were  also 
added  to  the  main  Flash  file  and  of  course  new 
videos  were  made  for  the  purpose  of  the  dance 
show.
4. CONCLUSION
In this paper we presented many connections and 
between  dance,  video  and  technology.  We  also 
presented a method for interesting use of monitors 
and Wii remote. 
Obviously, we can use the program not only in the 
described fashijn, but also in many other ways. The 
interactions can be discovered though use and all of 
the  used  programs  have  many  possibilities  of 
upgrades  and  adaptation for  other  dance  shows or 
other artistic or non-artistic uses.
 
ACKNOWLEDGEMENT
We want to thank the Faculty of Computer and 
Information Science and the Academy of Fine Arts 
and  Design  at  University  of  Ljubljana  for  helping 
with the  realization of  this  project.  Special  thanks 
also  go  to  Peter  Kovač  for  helping  with  the 
development of vvvv patches and to Nataša Tovirac 
professional  contemporary  dancer  for  her  dance 
related contribute. Acknowledgments should also go 
to  different  Slovene  and  international  forums 
especially:  http://www.planetaudio.si, http://vvvv. 
org/tiki-forums.php, http://vjforums.com,  and many 
other  people  who  provided  us  with  important 
information that helped us realize this project.
REFERENCES
[1]  Wii homebrew, Wikipedia information page on 
reuse of Nintendo's Wii game console hardware, 
accessories  and  software  for  purposes  outside 
those  intended  by  the  manufacturer: 
http://en.wikipedia.org/wiki/Wii_homebrew
[2]  Download page of software vvvv:  http://vvvv. 
org/tiki-index.php?page=Downloads
[3]  Information  about  OpenCV:  http://www.710. 
univ-lyon1.fr/~bouakaz/OpenCV-0.9.5/docs/ 
[4]  Information on best video codecs for best results 
in  vvvv:  http://vvvv.org/tiki-index.php?  page= 
FAQ+Codecs 
[5]  VJ  Visual  Jockey Software  Comparison: 
http: //softwarevj.com/


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0:1 virtual-real duel

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