Technique for registering image data of an object
First Claim
1. A method of registering image data of an object with at least one of a location and an orientation of the object, the method comprising:
- providing three-dimensional image data generated for the object, the image data being representative of at least a portion of the object and of reference markings associated with the object, wherein the reference markings have a known spatial relationship with a registration tracker adapted to be tracked by a navigation system;
providing registration tracking data representative of at least one of a spatial location and a spatial orientation of the registration tracker;
providing object tracking data representative of at least one of a spatial location and a spatial orientation of an object tracker adapted to be tracked by the navigation system, wherein the object tracker has a fixed spatial relationship with the object;
calculating from the registration tracking data and the object tracking data for a given point in time the relative position between the registration tracker and the object tracker; and
generating registered image data representative of at least one of the location and the orientation of the object taking into account the spatial relationship between the reference markings and the registration tracker and the relative position between the registration tracker and the object tracker.
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Accused Products
Abstract
Three-dimensional image data generated for an object is representative of at least a portion of the object and of reference markings associated with the object. The reference markings have a known spatial relationship with a registration tracker tracked by a navigation system. Registration tracking data/object tracking data, each representative of at least one of a spatial location and a spatial orientation of the registration tracker/object tracker respectively, are provided. The object tracker has a fixed spatial relationship with the object. The relative position between the registration tracker and the object tracker is calculated from the registration tracking data and the object tracking data for a given point in time. Registered image data is generated representative of the location or the orientation of the object, taking into account the spatial relationship between the reference markings and the registration tracker, and the relative position between the registration tracker and the object tracker.
140 Citations
29 Claims
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1. A method of registering image data of an object with at least one of a location and an orientation of the object, the method comprising:
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providing three-dimensional image data generated for the object, the image data being representative of at least a portion of the object and of reference markings associated with the object, wherein the reference markings have a known spatial relationship with a registration tracker adapted to be tracked by a navigation system; providing registration tracking data representative of at least one of a spatial location and a spatial orientation of the registration tracker; providing object tracking data representative of at least one of a spatial location and a spatial orientation of an object tracker adapted to be tracked by the navigation system, wherein the object tracker has a fixed spatial relationship with the object; calculating from the registration tracking data and the object tracking data for a given point in time the relative position between the registration tracker and the object tracker; and generating registered image data representative of at least one of the location and the orientation of the object taking into account the spatial relationship between the reference markings and the registration tracker and the relative position between the registration tracker and the object tracker. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A device kit for assisting the registration of image data of an object with at least one of a location and an orientation of the object, the kit comprising:
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a registration device comprising reference markings for an imaging device and a registration tracker configured to be tracked by a navigation system, wherein the registration device defines a known spatial relationship between the reference markings and the registration tracker and wherein the registration device is configured to assume a stable position when associated with the object; and an object tracker configured to be tracked by the navigation system, wherein the object tracker has an attachment mechanism to be firmly attached to the object in a fixed spatial relationship with the object. - View Dependent Claims (17, 18, 19, 20, 21, 22, 24)
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23. A system for registering image data of an object with at least one of a location and an orientation of the object, the system comprising:
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an interface configured to receive three-dimensional image data generated for the object, the image data being representative of at least a portion of the object and of reference markings associated with the object, wherein the reference markings have a known spatial relationship with a registration tracker for tracking by a navigation system; a processor providing registration tracking data representative of at least one of a spatial location and a spatial orientation of the registration tracker and object tracking data representative of at least one of a spatial location and a spatial orientation of an object tracker for tracking by the navigation system, wherein the object tracker has a fixed spatial relationship with the object; wherein the processor calculates from the registration tracking data and the object tracking data for a given point in time the relative position between the registration tracker and the object tracker and generates registered image data representative of at least one of the location and the orientation of the object taking into account the spatial relationship between the reference markings and the registration tracker and the relative position between the registration tracker and the object tracker. - View Dependent Claims (25, 26, 27)
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28. A registration device for assisting the registration of image data of an object with at least one of a location and an orientation of the object, the registration device comprising:
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reference markings for an imaging device and a registration tracker for tracking by a navigation system, wherein the registration device defines a known spatial relationship between the reference markings and the registration tracker; an object tracker configured to be tracked by the navigation system; and a flexible substrate configured to be attached to the object, wherein the registration tracker and the object tracker comprise at least three emitters attached to the substrate at predetermined locations. - View Dependent Claims (29)
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Specification