Hand Motion Capture Dr. Midori Kitagawa

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Presentation transcript:

Hand Motion Capture Dr. Midori Kitagawa School of Arts, Technology and Emerging Communication University of Texas at Dallas

Hand Anatomy The base of carpals attach to the arm (the radius and the ulna) Metacarpals allow the hand to ‘cup’. http://remote-galaxy.com/studioI/?m=20081025

Hand Anatomy Each finger has three phalanges, except for the thumb which has two. Metacaropophalangeal (MCP) joints are biaxial and has two DOF rotation. Other joints between phalanges have one DOF rotation. http://remote-galaxy.com/studioI/?m=20081025

Hand Anatomy Thumb’s Carpometacarpal (CMC) joint has two DOF rotation and allows the thumb to rotate and face the other fingers. http://remote-galaxy.com/studioI/?m=20081025

Finger capture is hard with an optical system because of occlusion markers get too close to each other http://remote-galaxy.com/studioI/?m=20081025

Hand capture with an optical system Mitten – allows a hand to grasp Mitten with an independent thumb Stretchable mitten – allows fingers to spread.

Hand capture with an optical system Smaller markers close-up camera setup

Finger tracking (capture) Often done with data gloves http://www.cs.ru.ac.za/research/g07l2273/project_background_gloves.html

Finger tracking Leap Motion https://www.leapmotion.com