Rue Berri is an outdoor performance that feeds an interactive video installation inside in the gallery.
During a multi-day performance I push up and down Berri street a custom-made camera dolly which is outfitted with video and position recording equipment. This new media object allows me to interact with the people and activities I encounter and to record them in their particular space and time.
The data collected from these encounters is sent to the gallery. Here, on a wide screen projection, the gallery visitor can see a processed accumulation of videos representing the street. Interacting with the projection, the viewer plays with the linearity of time and space by activating and layering short video clips.
By using the slit-scan imaging technique to segment and reassemble the video footage I am able to transform a particular space and time sequence into a perceptible space-time object with a unique aesthetic quality. It now becomes possible to perceive and analyze the correlation between time and space in a non-linear way.
Neighbors whose daily routines fall slightly out of synch are now woven together on the same screen. The idea of time as a non-reversible stream should be challenged, because it discourages us to explore the wide range of possible human interactions.
How it works.
The projected image can be described in two parts part one being the
long panoramic background image and part two being the short street
level video windows that are moving the left and to the right, on top
of the background image.
Part of my interest in this work is to condense the time and events
that happen on the street. I spend multiple days on Rue Berri with my
costume made camera dolly to record video footage of my interaction
with the street. I recorded video and location of the video with the
help of the dolly. That's why you can see a mechanical computer mouse
and an RFID tag reader attached to the dolly. Both were connected to a
laptop. The mouse gave me my relative position and the RFID tags
supplied me with recurring absolute markers.
The document of my time outside on the street can now be experienced
inside in the gallery.
A video tracking system in the gallery tracks the visitor's position
in the room. Once a visitor steps closer to the screen a MaxMSP patch
places a street-video on the screen close to the visitor. Once a
street-video is placed it starts moving to the left or right,
depending on what my movements were on the street. I choose never to
allow more than three videos to be placed at the same time.
So far I have 74 street-videos. In most of them I am recording people
walking, in some I have conversations with people in front and behind
the camera, others are 'empty' and just show the street.
I entered each video in to a database. When a visitor steps closer to
the screen the database is searched for a street-video that at one
point of it's duration occupies the same space which the visitor can
see right in front of her. This means the selection and placement is
not random.
Now the visitor can choose to let the street life pass by - like one
would while standing on a street corner - or the visitor can walk with
the street-video and listen to the accompanying sound.
Over six speakers the sound of each video travels pans in unity with
the video's location. This is done through a multi-channel sound card
and an other MaxMSP patch.
About the background image.
Once in a while the projected system rotates so that a
three-dimensional view on to the whole scene is revealed. One can see
three panoramic bands interweaving with one-another. Each panoramic
band shows a different time of day. They are pre-made and do not
change in themselves. Though each is performing a waving movement and
weaves in to the other bands. When projected system rotates back to is
'normal' state - the front view - the three separate bands and their
wave movement can not be seen. Instead the visitor now sees one wide
panoramic band of the street that shows multiple times at once.
That is the reason why sometimes the background image shows the street
at night or day.
To create those bands I picked three of the 74 clips, three that have
video footage that cover the whole 50 meters from the corner in to the
street. I wrote an other MaxMSP patch take one video and scans through
each frame. The patch copies a 5 pixel thick vertical pixel line from
the center or each frame and pasts them one beside the other. Since
the video is basically a travel shot revealing the street, each frame
shows a slightly new part of the street. This technique is called
slit-scan.
(see http://www.flong.com/writings/lists/list_slit_scan.html for more information)
The projected part of the work is all done in MaxMSP through the use
of Jitter and openGL.