IBC Printed Guide - September 2014 - 18

www.inbroadcast.com PRODUCT GUIDE | Sept 12 - 16, 2014

Brainstorm Infinity Set Boasts
Real-Time TeleTransporter Feature
By
Brainstorm
Multimedia

Chromakeying has been a popular and
useful technique for decades to create
special effects...

S

Within Infinity Set the talent becomes a 3D object positioned in the scene accurately
and with full perspective.

18

TeleTransporter can combine 3D virtual sets with
real characters and pre-recorded video feeds.

Infinity Set integrates 3D objects with their properties and animations.

oon
after
chromakeying
became
available,
the
possibility of taking real footage of
live characters and inserting them
into any other footage opened up a
world of possibilities for producers
and directors.
Later, movies and advertising
took advantage of the arrival of the
digital creation of 3D environments,
but for some time it required lots
of post-production time to create
realistic enough results. It was
not until real-time 3D virtual sets
became available, a couple of
decades ago, when television
started to use chromakeying as
a really advanced tool, going
far beyond the typical character
insertion with the inclusion of
complicated camera movements,
realistic zooming and much more.
With 3D virtual set technology,
producers not only had the chance
to place characters over video
footage, but to digitally create the
synthetic environments on which
they will be placed.
However,
some
technical
difficulties remained, one of
the most important for the final
result being the matching of
the different perspectives and
subject movements. It is relatively
easy to insert a live character in
a static environment, or control
the movement of a synthetic
background using the information
collected by the tracked cameras
that captured the live character.
But if we wanted to move one
step forward, like matching the
movement of the live character
with that of a pre-recorded or
independent video feed, until
now we always had to go into
post-production to combine both
movements to produce a realistic
result. The challenge is to be able
to do it in real-time.
Infinity Set
Last NAB Brainstorm introduced
the new Infinity Set, which thanks
to its TrackFree technology allows
the incorporation of external postproduction tracking hardware and
software data along with real-time

tracking data, combining both with
any object or set on the scene.
Also, external tracking data coming
from real cameras or third-party
tracking software can be included
as metadata in live feeds or prerecorded videos, and immediately
be transferred and applied to the
virtual camera's parameters.
We call this the TeleTransporter.
This feature allows the user to
seamlessly combine 3D virtual
sets with real characters and
pre-recorded video feeds, all
moving accordingly with precise
perspective matching.
TrackFree Technology
It is possible thanks to the
TrackFree technology and because
of the combination of the tracking
data of the video feed and the
virtual set.
Within Infinity Set the talent
becomes a 3D object positioned
in the scene accurately and with
a full perspective match from the
real camera position, and because
of that:
*	Infinity	 Set	 allows	 the	 animation	
of the virtual camera freely from
the tracked position;
*	Infinity	 Set	 allows	 cast	 diffuse	
and contour shadows of the
talent over the floor and objects
in the 3D scene, which has
always been a difficult challenge
on any virtual set system;
*	Infinity	 Set	 allows	 defocus	 and	
focus on the talent in accordance
with the rest of 3D objects in the
scene;
*	Infinity	 Set	 allows	 the	 talent	 to	
interact with the rest of the 3D
objects through the Z buffer
automatically (even go across
them) without the need of setting
manually different alpha masks
in the mixer whenever the talent
has to be in front or behind the
3D objects.
Because of these features, plus
many others such as an integrated
chromakeyer, software production
mixer and the ability to incorporate
projects from Aston 3D or eStudio,
Infinity Set is the most advanced
virtual set solution available.

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IBC Printed Guide - September 2014

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