1. Auto Rob Laboratory, School of Building Construction, Georgia Institute of Technology, Atlanta, GA.
2. Smart Systems Laboratory, Dept. of Construction Engineering and Management, Virginia Polytechnic Institute and State Univ., Blacksburg, VA.
3. ACE(D) Research Laboratory, Dept. of Engineering Education, Virginia Polytechnic Institute and State Univ., Blacksburg, VA.
4. 3D Interaction Group, Center of Human-Computer Interaction, Dept. of Computer Science, Virginia Polytechnic Institute and State Univ., Blacksburg, VA.
5. Inform Laboratory, Dept. of Civil and Environmental Engineering, Virginia Polytechnic Institute and State Univ., Blacksburg, VA.