Traditional Swabian Allemanian fasnacht is not carnival
You see a so called "Hästräger". The disguise is called "Häs" . In contrast to the Rhenish carnival, the participants wear the same costume every year. They're organized in guilds, where every guilds has its own special "Häs"
Actly in Cologne you have some carnival corps, who wear the same costume every year, too. For example the ''Blauen Funken'', ''Roten Funken''. :)
But anyway nice picture !