System and tracker for tracking an object, and related methods

Details System and tracker for tracking an object, and related methods System and tracker for tracking an object, and related methods

2007-10-30

2007-10-30

Nguyen, Tu T. (Department: 2886)

Optics: measuring and testing

Position or displacement

Reexamination Certificate

active

10957128

ABSTRACT:
A system to track a three-dimensional position and an orientation of a movable object and associated methods are provided. The system includes a tracker having an optically trackable body adapted to connect to the movable object. A plurality of optical indicators are connected or mounted to the optically trackable body to form a plurality of geometric figures. A plurality of obfuscating flanges optically separate the optical indicators from each other to prevent each of the optical indicators from becoming optically coincident with another optical indicator when viewed along a preselected viewing path. The system also includes an apparatus to track the tracker having an optical detector to simultaneously detect the three-dimensional position of at least three of the plurality of optical indicators and a determiner to determine the three-dimensional position and orientation of the optically trackable body from the position of the optical indicators.

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Polaris Tool Design Guide, dated Apr. 2004; copyright 2004 Northern Digital Inc.

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