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US 2014/0152550 A1Published application
Precision position tracking device
AssigneeWorldViz, Inc.
InventorsAndrew C. Beall, Matthias Pusch
Life of this patent
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Abstract
Embodiment of a lightweight and compact wireless precision position tracking device and a precision position tracking motion capture system are described. Optionally, the wireless precision position tracking device is configured to be worn by a user. The wireless precision position tracking device may be configured to emit optical light from two or more respective markers, where the light from one of the markers is distinguishable from light from another of the markers.
Claims23
A precision positioning tracking apparatus, comprising:
- a head mountable system, comprising:
- a housing configured to be worn by a person in a head region;
- two or more infrared Light-Emitting Diodes (LED);
- a battery;
- a position tracking device powered by the battery and positioned at least in part in the housing, the position tracking device configured to:
- provide orientation information to a remote device;
- cause a first infrared LED in the two or more infrared LEDs to emit a first repetitive pattern of infrared light pulses, wherein the first repetitive pattern of infrared light pulses comprises:
- a first combination of light pulses over a first period of time;
- and
- cause a second infrared LED in the two or more infrared LEDs to emit a second repetitive pattern of infrared light pulses, wherein the second repetitive pattern of infrared light pulses comprises:
- a second combination of light pulses over a second period of time, and
- wherein the second combination of light pulses is distinguishable from the first combination of light pulses,
- and
- wherein a beginning of each pattern in the first repetitive pattern and the second repetitive pattern occurs at substantially the same time.
11 more elements
A precision positioning tracking apparatus, comprising:
- a positioning tracking device, comprising:
- two or more infrared Light-Emitting Diodes (LED);
- a housing configured to be worn by a person in a head region;
- a battery;
- a precision position tracking device powered by the battery and positioned at least in part in the housing, the precision position tracking device configured to:
- cause a first infrared LED in the two or more LEDs to emit a first pattern of infrared light pulses, wherein the first pattern of infrared light pulses comprises:
- a first combination of light pulses over a first period of time;
- and
- cause a second infrared LED in the two or more LEDs to emit a second repetitive pattern of infrared light pulses, wherein the second repetitive signal pattern of infrared light pulses comprises:
- a second combination of light pulses over a second period of time, and
- wherein the second combination of light pulses is distinguishable from the first combination of light pulses.
8 more elements
A method, comprising:
- receiving image data from one or more cameras;
- detecting from the image data two or more distinct patterns of light pulses;
- identifying from the two or more distinct patterns of detected light pulses a presence of a first signal pattern, emitted by a first light source, and a second signal pattern, emitted by a second light source;
- and
- calculating a first orientation of at least a portion of a person's head based at least in part on the identified presence of the first signal pattern and the second signal pattern.
2 more elements
Dependencies are inferred from the claim text.