Abstract. This paper proposes a new user interface paradigm for motion capture based animation systems, providing intuitive and efficient ways to visualize the main motion capture concepts and operations. A prototype system was built, implementing the prop

Inthefollowingsub-sections,wewilldescribethemaininterfaceobjectsandconceptsdevelopedundertheproposedmethodology.Allimagespresentedinthissectionareactualscreenshotsoftheprototypesystem,whichimplementstheconceptsdescribedinthispaper.

3.1Actor

Inourinterfaceparadigm,theactorisvisualizedbymeansofitscomponents:theskeletontopologyandgeometry.Theskeletonstructureisshowninawin-dowasagraphcomposedofjointsandlinks(Figure5).Thiswindowdisplaysinformationabouteachjointandthelinksbetweenthem.Theinterfaceallowsjointselectionand/or

grouping.

Figure5:Skeletongraphwindow.

Therepresentationoftheactorcanbevisualizedwithdi erentstylesintherenderingwindow,asshowninFigure6.Theselectedjointinthegraphwindowappearsindi erentcolorandsizeintherenderingwindow.Thisselectionalsoa ectsotherinterfaceobjects,aswillbediscussedlater.