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Hand Motion Capture

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’. Hand Anatomy.

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Hand Motion Capture

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

  2. Hand Anatomy • Thebase of carpalsattach to the arm (the radius and the ulna) • Metacarpals allow the hand to ‘cup’.

  3. 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.

  4. Hand Anatomy • Thumb’s Carpometacarpal (CMC) joint has two DOF rotation and allows the thumb to rotate and face the other fingers.

  5. Finger capture is hard with an optical system because • of occlusion • markers get too close to each other

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

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

  8. Finger tracking (capture) • Often done with data gloves

  9. Finger tracking • Leap Motion

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