Single-camera tracking of an object
1 Assignment
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Accused Products
Abstract
A method and system for determining the position and orientation of an object is disclosed. A set of markers attached or associated with the object is optically tracked and geometric translation is performed to use the coordinates of the set of markers to determine the location and orientation of their associated object.
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Citations
23 Claims
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1. (canceled)
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2. A method for determining a location of a point on a device, comprising:
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determining a relationship between a plurality of reference points and at least one point on the device;
determining coordinates of the plurality of reference points; and
determining a coordinate of the at least one point based at least in part on the determined relationship and the coordinates of the plurality of reference points. - View Dependent Claims (3, 4, 5, 6, 7, 8)
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9. A method for profiling an object, comprising:
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tracing a pointer device tip along a path on an object;
determining a set of marker positions associated with the pointer device tip; and
determining coordinates of the pointer device tip based on the determined set of marker positions. - View Dependent Claims (10, 11)
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12. A method for determining a position of an object, comprising:
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performing an imaging procedure to acquire imaging data for an internal region of a patient;
determining a location of at least one point in the image data, the location determined in reference to a first coordinate system;
optically determining a position of the object in a second coordinate system; and
determining a position of the object relative to the location of the at least one point in the first coordinate system. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A computer program product that includes a medium usable by a processor, the medium comprising a set of instructions which, when executed by the processor, causes a process to be performed, the process comprising:
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determining a relationship between a plurality of reference points and at least one point on a device;
determining coordinates of the plurality of reference points; and
determining a coordinate of the at least one point based at least in part on the determined relationship and the coordinates of the plurality of reference points.
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19. A computer program product that includes a medium usable by a processor, the medium comprising a set of instructions which, when executed by the processor, causes a process to be performed, the process comprising:
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tracing a pointer device tip along a path on an object;
determining a set of marker positions associated with the pointer device tip; and
determining coordinates of the pointer device tip based on the determined set of marker positions.
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20. A computer program product that includes a medium usable by a processor, the medium comprising a set of instructions which, when executed by the processor, causes a process to be performed, the process comprising:
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performing an imaging procedure to acquire imaging data for an internal region of a patient;
determining a location of at least one point in the image data, the location determined in reference to a first coordinate system;
optically determining a position of the object in a second coordinate system; and
determining a position of the object relative to the location of the at least one point in the first coordinate system.
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21. A system for digitizing a location of a point on a device in three-dimensional space, comprising:
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means for determining a relationship between a plurality of reference points and at least one point on the device;
means for determining coordinates of the plurality of reference points; and
means for determining a coordinate of the at least one point based at least in part on the determined relationship and the coordinates of the plurality of reference points.
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22. A system for three-dimensional profiling of an object, comprising:
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means for tracing a pointer device tip along a path on an object;
means for determining a set of marker positions associated with the pointer device tip; and
means for determining coordinates of the pointer device tip based on the determined set of marker positions.
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23. A system for determining a position of an object, comprising:
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means for acquiring imaging data for an internal region of a patient;
means for determining a location of at least one point in the image data, the location determined in reference to a first coordinate system;
means for determining a position of the object in a second coordinate system; and
means for determining a position of the object relative to the location of the at least one point in the first coordinate system.
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Specification