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Ch15-I044963.fm Page 69 Tuesday, August 1, 2006 12:58 PM
Page 69
Tuesday, August 1,2006
12:58 PM
Ch15-I044963.fm
69 69
results.
Model-based
Motion
Evaluation/
Simulation
Individual Rapid Display
BBHM
Human Model Description Human Model
Description Description
Precise Model Evaluation/
Based
Posture/Motion Simulation
Measureing Generator Posture/Motior Module
Subjects' Physique Description
Model based Rapid Display Evaluation/
Posture/Motior Posture/Motion Simulation
Description Generator Result Description

Rapid Display Multi-Display
Evaluation/
Posture/Motior Simulation
Motion Capturing Description Result Viewer
f— Legend
jlulti-perspj l' ill :System wrth I Software U: Formatted 1 : raw data
Video Cameras! I r Hardware * Package b Data
Figure 2: Data Flow Map of Info-Ergonomics Simulation System.

3.1. Measuring Subjects' Physique

Figure 3: subject's mockup for motion capture Figure 4: motion capture results

In order to evaluate/simulate individual posture/motion taking individuality (age, statue, life style,
flexibility, and so on) into consideration, we need to measure subjects' individuality at first.
Among many measurement items showing idividuality, two items below are definitely related.
• Segments' length, width, center of joint
These parameters affect the geometric position of human body model.
• Flexibility, muscle strength
Even if the physique is the same, an athletic ability can be extremely different depending on
these parameters.
Ideally, it is necessary to measure the sizes, shapes and positions of all a subject's bones or muscles in