Anselm Grundhöfer, Daniel Kurz, S. Thiele, Oliver Bimber,
"Color Invariant Chroma Keying and Color Spill Neutralization for Dynamic Scenes and Cameras"
, in The Visual Computer, Vol. 26, Nummer 9, Springer-Verlag New York, Seite(n) 1167-1176, 9-2010, ISSN: 0178-2789
Original Titel:
Color Invariant Chroma Keying and Color Spill Neutralization for Dynamic Scenes and Cameras
Sprache des Titels:
Englisch
Original Kurzfassung:
In this article we show how temporal backdrops that alternately change their color rapidly at recording rate can aid chroma keying by transforming color spill into a neutral background illumination. Since the chosen colors sum up to white, the chromatic (color) spill component is neutralized when integrating over both backdrop states. The ability to separate both states additionally allows to compute high-quality alpha mattes. Besides the neutralization of color spill, our method is invariant to foreground colors and supports applications with real-time demands. In this article, we explain different realizations of temporal backdrops and describe how keying and color spill neutralization are carried out, how artifacts resulting from rapid motion can be reduced, and how our approach can be implemented to be compatible with common real-time post-production pipelines.
Sprache der Kurzfassung:
Englisch
Journal:
The Visual Computer
Veröffentlicher:
Springer-Verlag New York
Volume:
26
Number:
9
Seitenreferenz:
1167-1176
Erscheinungsmonat:
9
Erscheinungsjahr:
2010
ISSN:
0178-2789
Anzahl der Seiten:
10
Notiz zur Publikation:
Grundhöfer, A., Kurz, D., Thiele, S. and Bimber, Color Invariant Chroma Keying and Color Spill Neutralization for Dynamic Scenes and Cameras, The Visual Computer - International Journal of Computer Graphics, 2010
Forschungs-