Virtual Environment for Digital Human Simulation The University of Iowa

Format:

Conference/Event

Author/Creator:

Mi, Zan, author.

Conference Name:

Digital Human Modeling for Design and Engineering Symposium (2004-06-15 : Rochester, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2004

Summary:

A general methodology and associated computational algorithm for predicting realistic postures of digital humans (mannequins) in a virtual environment is presented. The basic plot for this effort is a task-based approach, where we believe that humans assume different postures for different tasks. The underlying problem is characterized by the calculation (or prediction) of the joint displacements of the human body in such a way to accomplish a specified task. In this work, we have not limited the number of degrees of freedom associated with the model. Each task has been defined by a number of human performance measures that are mathematically represented by cost functions that evaluate to a real number. Cost functions are then optimized, id est, minimized or maximized subject to a number of constraints. The problem is formulated as a multi-objective optimization algorithm where one or more cost functions are considered as objective functions that drive the model to a solution. A real-time algorithm is implemented and is used to drive digital human's motion in the virtual environment

Notes:

Vendor supplied data

Publisher Number:

2004-01-2172

Access Restriction:

Restricted for use by site license