Keying has become a common operation in TV and film production
to seperate elements from a background. With the introduction
of digital image processing more control is offered to the
keying process. Like this it is possible to plot image pixel
into a virtual 3D space and mask the background pixel according
to their coordinates. This concept is called "3D keying".
In this report a detailed overview to comon keying approaches
is given and a self-developed 3D keying application is presented.
Results of an evaluation against commercial software show
that my software performs fastest of all.
This blue screen videos were produced in a TV studio of
the University of Arts Bremen. All clips are in avi format,
XVID codec
(!), 720x576 pixel, 24 bit, no audio.
Based on the blue screen footage I evaluated four keying
applications. For each original clip, one matte clip and
one composite clip was produced. All clips are in avi format,
XVID codec
(!), 720x576 pixel, 24 bit, no audio.
