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Psychologically Inspired Anticipation and Dynamic Response for Impacts to the Head and Upper Body

TitlePsychologically Inspired Anticipation and Dynamic Response for Impacts to the Head and Upper Body
Publication TypeJournal Article
Year of Publication2008
AuthorsMetoyer, R. A., V. Zordan, B. Hermens, C-C. Wu, and M. Soriano
JournalIEEE Transactions on Visualization and Computer Graphics
Pagination173 - 185
Date Published01/2008
Keywordsanimation, kinematics and dynamics, motion capture, physically-based modeling

We present a psychology-inspired approach for generating a character's anticipation of and response to an impending head or upper body impact. Protective anticipatory movement is built upon several actions that have been identified in the psychology literature as response mechanisms in monkeys and in humans. These actions are parameterized by a model of the approaching object (the threat) and are defined as procedural rules. We present a hybrid forward and inverse kinematic blending technique to guide the character to the pose that results from these rules while maintaining properties of a balanced posture and characteristics of the behavior just prior to the interaction. In our case, these characteristics are determined by a motion capture sequence. We combine our anticipation model with a physically-based dynamic response to produce animations where a character anticipates an impact before collision and reacts to the contact, physically, after the collision. We present a variety of examples including threats that vary in approach direction, size, and speed.

Short TitleIEEE Trans. Visual. Comput. Graphics