Hybrid registration method
First Claim
Patent Images
1. A system for registering sensor location data to images of at least one body part, comprising:
- an endoscope including;
a sensor configured to generate data corresponding to a location of the sensor relative to at least one body part in a patient, andan image sensor configured to generate image data; and
a computing device having a memory configured to store a plurality of previously acquired images of the at least one body part, and including thereon a software application that, when executed by the computing device,displays a three-dimensional (3D) model derived from the plurality of previously acquired images,detects a location of the sensor,receives image data from the image sensor, andregisters the location of the sensor to a subgroup of images selected from the plurality of previously acquired images, wherein registration is achieved by parsing the plurality of previously acquired images based on the location data to generate the subgroup of the plurality of previously acquired images, and comparing images in the subgroup to images received from the image sensor to identify an image that substantially matches an image generated by the image sensor.
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Abstract
A registration method whereby a sensor-based approach is used to establish initial registration and whereby upon the commencement of navigating an endoscope, image-based registration methods are used in order to more accurately maintain the registration between the endoscope location and previously-acquired images. A six-degree-of-freedom location sensor is placed on the probe in order to reduce the number of previously-acquired images that must be compared to a real-time image obtained from the endoscope.
921 Citations
12 Claims
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1. A system for registering sensor location data to images of at least one body part, comprising:
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an endoscope including; a sensor configured to generate data corresponding to a location of the sensor relative to at least one body part in a patient, and an image sensor configured to generate image data; and a computing device having a memory configured to store a plurality of previously acquired images of the at least one body part, and including thereon a software application that, when executed by the computing device, displays a three-dimensional (3D) model derived from the plurality of previously acquired images, detects a location of the sensor, receives image data from the image sensor, and registers the location of the sensor to a subgroup of images selected from the plurality of previously acquired images, wherein registration is achieved by parsing the plurality of previously acquired images based on the location data to generate the subgroup of the plurality of previously acquired images, and comparing images in the subgroup to images received from the image sensor to identify an image that substantially matches an image generated by the image sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification