CATIA V5 knowledge-based camera field-of-view modeling for motion capture system setup in real-world environments

Brandon Witbeck – Undergraduate Research AssociateNeil Littell - PLM CoordinatorCenter for Advanced Vehicular Systems at Mississippi State University

Principal Research Areas:

• Alternative Powered Systems• Focus on development of advanced electromechanical

power conversion• Strong emphasis in wide band gap semi conductor

device development • Hybrid vehicle technology development

• Computational Manufacturing and Design• Dual Focus on world class FEA and Materials Modeling

Principal Research Areas: (Cont.)

• Human and Systems Engineering• Alternative Learning Technologies • Cooperative Computing Group• Intelligent Electronic Systems • Human Factors and Ergonomics• Product Lifecycle Management

HSE Lab

Human Factors and Ergonomics Problem:

• Lengthy setup times for motion capture cameras• Trouble avoiding obstacles to camera fields of view• Uncertainty predicting actual usable camera volume

(Where three cameras or more intersect)• Existing system recognizes volume as a cube • Existing systems does not recognize or account for

obstructions

Needs

• System placement evaluation prior to arrival on location

• Camera placement that maximizes effective capture volume

• More accurate volume prediction geometry

Proposed Solution (V1)

• Capture volume prediction model based on camera positions

• Capture volume defined as the intersection of three camera fields of view

• Highly mobile and easily positioned cameras

Media

Proposed Solution (V2)

• Added object obstruction to volume predicting model• Quick obstruction setup and activation• Ensured proper obstruction propagation • Created user parameters similar to motion capture

system controls

Media

Media

Final Product (V2)

• CATIA model of cameras and operating capture volume

• Model that is easy to set up and modify • User parameters that match motion capture system

inputs

System Construction and Setup

System Construction and Setup

System Construction and Setup

System Construction and Setup

System Construction and Setup

System Construction and Setup

System Construction and Setup

System Construction and Setup

System Construction and Setup

System Construction and Setup

System Construction and Setup

Future Product Development:

• Further validation of computational model• Incorporation with small cameras for use within

confined spaces• Linkage to camera systems via servo-motor to allow

for CATIA based optimization and Automatic adjustment of camera angles

Questions?Comments?

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