An Imaging System to Visualize Gymnast's Form and Locus—Multi-Motion
A visualization system called “Multi-motion” has been developed, which shows a gymnast's form and locus in performing a vault. It extracts player's images quickly and automatically and displays forms from jump to finish, overlaying forms in a scene like a stroboscopic camera image, even when the gymnast is wearing a colorful uniform and the background is a complex pattern that includes moving objects such as walking spectators. To achieve this, a new extraction method has been developed which adopts motion analysis focusing on the feature that “a gymnast is bigger and moves faster, and spectators in the background are smaller and move slower.” The system was successfully applied to the live broadcast of the World Gymnastics Championship and gained public favor as well as the approval of the gymnastic community.
- Print ISSN
- 0036-1682
- Published
- 1998-06
- Content type
- Original Research
- DOI
- 10.5594/J08389