1. S. Mandayam/ ECE Dept./Rowan University Freshman Clinic II Spring 2003 Shreekanth Mandayam ECE Department Rowan University Sensors for Motion Capture April 23, 2003 http://engineering.rowan.edu/~shreek/spring03/froshclinic2/

2. S. Mandayam/ ECE Dept./Rowan University Plan What is motion capture? Motion capture applications Motion capture principles Motion capture sensors Electricity and Magnetism 101

3. S. Mandayam/ ECE Dept./Rowan University What is motion capture? Technology that is used to measure and display the position of human organs – limbs, neck, head, spine, etc., as they move in the performance of various tasks.

4. S. Mandayam/ ECE Dept./Rowan University MoCap Applications Sports medicine Biomechanics Industrial training Animation Virtual reality Physical therapy Sports training Medical imaging Motion Capture

5. S. Mandayam/ ECE Dept./Rowan University Optical Sensors for Motion Capture

6. S. Mandayam/ ECE Dept./Rowan University A little background: Electricity & Magnetism 101 Voltage source ~ R I + - Voltage source ~ + - Voltage source ~ + - what if? and?

7. S. Mandayam/ ECE Dept./Rowan University I see dead people…… http://www.chembio.uoguel ph.ca/educmat/chm386/rud iment/tourclas/hertz.htm Heinrich Hertz 1888 James Maxwell 1873 http://www-gap.dcs.st- and.ac.uk/~history/Mathe maticians/Maxwell.html Guglielmo Marconi 1896 http://www.marconicalling.com/

8. S. Mandayam/ ECE Dept./Rowan University Electromagnetic Sensors for 3-D Motion Capture Transmitting antenna Receiving antenna Electromagnetic waves Voltage source ~ + - Voltmeter

9. S. Mandayam/ ECE Dept./Rowan University Flock of Birds Receiver Transmitter …by Ascension Technology Corporation

10. S. Mandayam/ ECE Dept./Rowan University Project Background Started in Fall 1999 Inspection of Tanks Current System 2 ISA pcBIRD cards 2 sensors 1 transmitter Electromagnetics 6 DOF data  calculate forces

11. S. Mandayam/ ECE Dept./Rowan University TACOM - CAV

12. S. Mandayam/ ECE Dept./Rowan University Summary