Self-referenced tracking
First Claim
Patent Images
1. A method comprising mounting a sourceless orientation tracker on a user'"'"'s head, and using a position tracker to track a position of a first localized feature associated with a limb of the user relative to the user'"'"'s head.
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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.
184 Citations
59 Claims
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1. A method comprising
mounting a sourceless orientation tracker on a user'"'"'s head, and using a position tracker to track a position of a first localized feature associated with a limb of the user relative to the user'"'"'s head.
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52. A method comprising:
using acoustic or radio frequency signals to track a position of a first localized feature associated with a limb of the user relative to the user'"'"'s head.
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53. A tracking system comprising:
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an acoustic or radio frequency position tracker adapted for mounting on a user'"'"'s head, said tracker being adapted to track a position of a first localized feature associated with a limb of the user relative to the user'"'"'s head.
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54. A tracking system comprising
a sourceless orientation tracker for mounting on a user'"'"'s head, and a position tracker adapted to track a position of a first localized feature associated with a limb of the user relative to the user'"'"'s head.
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55. A method comprising:
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mounting a motion tracker on a user'"'"'s head;
using a position tracker to track a position of a first localized feature associated with a limb of the user relative to the user'"'"'s head;
positioning the first localized feature at a first point;
positioning the first localized feature at a second point; and
calculating the distance between the first point and the second point.
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56. A system comprising:
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mounting a first inertial sensor on a user'"'"'s head;
mounting a second inertial sensor elsewhere on the user'"'"'s body or in an object held by the user; and
tracking the position of one inertial sensor relative to the other. - View Dependent Claims (57, 58, 59)
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Specification