Self-referenced tracking
DCFirst Claim
Patent Images
1. A method comprising:
- mounting a sourceless orientation tracker on a user'"'"'s head,using a position tracker comprising a radiated energy detector to track a position of a first localized feature associated with a body part of the user other than the head relative to the user'"'"'s head; and
generating data representative of the tracked position.
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Abstract
A new tracking technique is essentially “sourceless” in that it can be used anywhere with no set-up, yet it enables a much wider range of virtual environment-style navigation and interaction techniques than does a simple head-orientation tracker. A sourceless head orientation tracker is combined with a head-worn tracking device that tracks a hand-mounted 3D beacon relative to the head. The system encourages use of intuitive interaction techniques which exploit proprioception.
433 Citations
44 Claims
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1. A method comprising:
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mounting a sourceless orientation tracker on a user'"'"'s head, using a position tracker comprising a radiated energy detector to track a position of a first localized feature associated with a body part of the user other than the head relative to the user'"'"'s head; and generating data representative of the tracked position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method comprising:
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mounting a first sourceless orientation tracker on a user'"'"'s head; mounting a second sourceless orientation tracker on a body part of the user other than the user'"'"'s head; and utilizing angular rate and linear acceleration signals from said first and second trackers to derive a differential inertial signal representative of a motion of the body part relative to the head. - View Dependent Claims (41, 42, 43, 44)
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Specification