The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 2013
Filed:
Jan. 13, 2011
John Michael Fitzpatrick, Nashville, TN (US);
John Michael Fitzpatrick, Nashville, TN (US);
Vanderbilt University, Nashville, TN (US);
Abstract
Systems and methods for performing computer-assisted procedures are provided. In the systems and methods, a current rigid transformation is applied to a first set of points with respect to a second set of points to obtain a current transformed set of points. Thereafter, a linearized transformation is determined that minimizes a weighted fiducial registration error between the current transformed set and the second set. An updated rigid transformation is then obtained based on the current rigid transformation, the translation vector of the linearized transformation, and a rotation matrix that is closest to the linearized matrix of the linearized transformation, followed by applying the updated rigid transformation to the first set to obtain an updated transformed set of points. Finally, if motion associated with such updating fails to meet some criterion, the determining, obtaining, and applying are iteratively repeated using the updated rigid transformation and the updated transformed set.