Contact-based motion graph and its application in locomotion synthesis for virtual actors. (2015)

• Record Type: Journal Article
• Authors: Wei, Xiaopeng; Yi, Pengfei; Zhang, Qiang
• Is Part Of: International journal of industrial and systems engineering. Volume 20:Number 1(2015)
• Page Start: 58
• Page End: 68
• Publication Date: 2015
• Subjects: contact-based motion graphs -- locomotion synthesis -- virtual actors -- foot-skate free locomotion -- directed graph -- path adaptation -- data structure -- sample-based -- motion synthesis -- virtual character motions -- virtual characters; Systems engineering -- Periodicals; Industrial engineering -- Periodicals; 620.001171
• Languages: English
• ISSNs: 1748-5037

Abstract

To generate foot-skate free locomotion along user defined path for virtual actors, a novel data structure of contact-based motion graph is proposed. At first, sample motions are divided to contact clips according to the number of feet in contact with the ground. Then a directed graph can be built by producing nodes and basic edges based on these clips. After generating edges between nodes from different samples by linear interpolation, the contact-based motion graph can be defined as a strongly connected component of this graph. Applying synthesis strategy designed for nodes and edges, a path on contact-based motion graph can be converted to a smooth foot-skate free motion moving along the given path. The following experiments show the effectiveness of this method.