Surgery – Endoscope – With means for indicating position – depth or condition of...
Reexamination Certificate
2007-11-27
2007-11-27
Leubecker, John P. (Department: 3739)
Surgery
Endoscope
With means for indicating position, depth or condition of...
C382S128000
Reexamination Certificate
active
10915501
ABSTRACT:
A method for registration of virtual endoscopy images in first and second patient positions comprises performing colon segmentation and feature extraction, including centerline and colon surface data for each of the images; resampling the centerline and colon surface data; computing respective local descriptors; pairing point correspondences on the centerlines between the first and second images by minimal cost matching; extrapolating the centerline point correspondences to a 3-dimensional/3-dimensional (3D/3D) transformation between the first and second images. The method also includes selecting a position for a virtual endoscope in one of the images; associating an orthogonal reference frame with the virtual endoscope; and applying the 3D/3D transformation to the orthogonal reference frame so as to derive a corresponding transformed reference frame for the virtual endoscope in the other of the images.
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Search Report (including Notification of Transmittal of the International Search Report, International Search Report, and Written Opinion of the International Searching Authority).
Chefd′hotel Christophe
Geiger Bernhard
Leubecker John P.
Paschburg Donald B.
Siemens Medical Solutions USA , Inc.
Smith Philip R
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