Motion CaptureEmilio Cantu, Jin He, Gerard Louis, Brian Orchosky, Chelsey Salberg
Challenges and New Techniques
● Expense● Hardware● Software● More Sensing Methods
Expense
● Very expensive● Vicon● Complete Vicon MX40 Motion Capture
System - $220,000
Hardware and software
● Hardware○ Real time○ High frame rate○ High bandwidth
● Software○ Image processing algorithms○ Extract the target image from its background
New Methods
● IR Camera Based○ Leap Motion
● Electrical signal based○ MYO
● Wifi Based○ WiSee○ Wivi
Leap Motion
● Human computer interaction● Hand and finger motion● Smaller observationarea and higher resolution
● 2 IR cameras and 3 IR LEDs● Provide SDK, C++● App store - new● https://www.leapmotion.com/
MYO
● Wristband● Electrical activity in muscles.● https://www.youtube.com/watch?v=oWu9
TFJjHaM● Wirelessly control computer. ● Interact with digital world.
Wifi Based Methods
● Wisee○ From Univ of Washington○ Published in MobiCom13○ http://wisee.cs.washington.edu/○ Classify a set of 9 gestures○ Achieve 94% accuracy.
Wifi Based Methods
● Wivi ○ From MIT○ Published in SIGCOMM13○ Motion Capture Behind Walls○ http://people.csail.mit.edu/
fadel/wivi/
accadAdvanced Computer Center for Arts and Designs
What is need for Motion Capture
• Need 8 cameras for performances• Need 3 for props• Must avoid occlusion• Input from cameras into giganet that
sends data to computer software processed input
accad
• Uses 12 Vicon cameras
X 12
accadMotion Capture Studio
Autodesk Motion Builder
Questions?
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