Creating and retargetting motion by the musculoskeletal human body model

Taku Komura, Yoshihisa Shinagawa, Tosiyasu L. Kunii

Research output: Contribution to journalArticlepeer-review

Abstract

Recently, optimization has been used in various ways to interpolate or retarget human body motions obtained by motion-capturing systems. However, in such cases, the inner structure of a human body has rarely been taken into account, and hence there have been difficulties in simulating physiological effects such as fatigue or injuries. In this paper, we propose a method to create/retarget human body motions using a musculoskeletal human body model. Using our method, it is possible to create dynamically and physiologically feasible motions. Since a muscle model based on Hill's model is included in our system, it is also possible to retarget the original motion by changing muscular parameters. For example, using the muscle fatigue model, a motion where a human body gradually gets tired can be simulated. By increasing the maximal force exertable by the muscles, or decreasing it to zero, training or displacement effects of muscles can also be simulated. Our method can be used for biomechanically correct inverse kinematics, interpolation of motions, and physiological retargetting of the human body motion.
Original languageEnglish
Pages (from-to)254-270
Number of pages17
JournalThe Visual Computer
Volume16
Issue number5
DOIs
Publication statusPublished - Jun 2000

Keywords

  • Key words: Human animation – Muscle-based model – Motion retargetting – Motion synthesis

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