51
Conclusions
Experiments
Optimisation
Introduction
design
One-shot patterns
Coding strategy
Offline processing: colour selection
(II)
The projector-camera system introduces a strong colour cross-talk which makes difficult the colour
identification
The
cross-talk can be reduced with a calibration procedure:
• a pure red, green
and blue patterns are projected over a colour-neutral panel.
• a linear mapping
is calculated between the colour instructions and the perceived ones à
a cross-talk matrix is obtained
• this matrix
approximates the behaviour of the projector-camera system à This
matrix will be used online to reduce the cross-talk.
The highest cross-talk
exists between the green and the red channel
