Alan D Kalvin

US Patent:

6415171, Jul 2, 2002

Filed:

Jul 16, 1999

Appl. No.:

09/354800

Inventors:

Andre Gueziec - Mamaroneck NY
Alan David Kalvin - Irvington NY
Willie Williamson, Jr. - Roseville CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

A61B 505

US Classification:

600407, 600425

Abstract:

A system and method for intra-operatively providing a surgeon with visual evaluations of possible surgical outcomes ahead of time, and generating simulated data, includes a medical imaging camera, a registration device for registering data to a physical space, and to the medical imaging camera, and a fusion mechanism for fusing the data and the images to generate simulated data, without correcting for distortion. The simulated data (e. g. , such as augmented X-ray images) is natural and easy for a surgeon to interpret. In an exemplary implementation, the system preferably includes a data processor which receives a three-dimensional surgical plan or three-dimensional plan of therapy delivery, one or a plurality of two-dimensional intra-operative images, a three-dimensional model of pre-operative data, registration data, and image calibration data. The data processor produces one or a plurality of simulated post-operative images, without correcting for distortion, by integrating a projection of a three-dimensional model of pre-operative data onto one or a plurality of two-dimensional intra-operative images.

US Patent:

6662148, Dec 9, 2003

Filed:

Jan 28, 2000

Appl. No.:

09/493146

Inventors:

Roy L. Adler - Chappaqua NY
Jean-Pierre Dedieu - Toulouse Cedex, FR
Alan D. Kalvin - Irvington NY
Joseph Y. Margulies - Pleasantville NY
Marco Martens - Chappaqua NY
Michael Shub - New York NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06G 748

US Classification:

703 11, 703 2, 600594, 600407

Abstract:

Spinal modeling is based on a concept called spinal energy which assumes that the spine assumes a shape to minimize spinal energy. Spinal energy depends on parameters called stiffness coefficients. These parameters can be determined from human data which, by hypothesis, are universal for a large class of humans. The method adapts Newtons method to the manifold SO(3) to find a solution of model of the human spine. Where basins of attraction are small in Newtons method, homotopy methods are introduced to move from known solutions to unknown solutions. By setting the gradient of the spinal energy to zero, Newtons method is used to solve the inverse problem of finding stiffness coefficients from human data. A new approach to improving deformed spines uses the modeling method based on spinal energy. This approach preserves maximally the range of motion of the spine.

US Patent:

6747646, Jun 8, 2004

Filed:

May 11, 2001

Appl. No.:

09/852739

Inventors:

Andre Gueziec - Mamaroneck NY
Alan David Kalvin - Irvington NY
Willie Williamson, Jr. - Roseville CA
Kenong Wu - Davis CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06T 1500

US Classification:

345426, 345420, 345424, 345629

Abstract:

A system and method for intra-operatively providing a surgeon with visual evaluations of possible surgical outcomes ahead of time, and generating simulated data, includes a medical imaging camera, a registration device for registering data to a physical space, and to the medical imaging camera, and a fusion mechanism for fusing the data and the images to generate simulated data, without correcting for distortion. The simulated data (e. g. , such as augmented X-ray images) is natural and easy for a surgeon to interpret. In an exemplary implementation, the system preferably includes a data processor which receives a three-dimensional surgical plan or three-dimensional plan of therapy delivery, one or a plurality of two-dimensional intra-operative images, a three-dimensional model of pre-operative data, registration data, and image calibration data. The data processor produces one or a plurality of simulated post-operative images, without correcting for distortion, by integrating a projection of a three-dimensional model of pre-operative data onto one or a plurality of two-dimensional intra-operative images.

US Patent:

20020111770, Aug 15, 2002

Filed:

Jan 24, 2002

Appl. No.:

10/056375

Inventors:

Alan Kalvin - Irvington NY, US
Bernice Rogowitz - Ossining NY, US

International Classification:

G21C017/00

US Classification:

702/183000, 345/418000

Abstract:

A system and method for evaluating color scales (also called color tables, color maps, or color legends) is used in creating graphical representations of digital data, and where these graphical representations are presented for viewing on color output devices such as electronic computer displays, computer printers, etc. The problem of determining whether a particular viewing setup preserves the perceptual ordering of a given color scales as follows: The color scale is applied to a digital test pattern, and the resulting color-coded picture (also know as a “pseudo-colored” picture) is then viewed and rated by a human observer.

US Patent:

20090219289, Sep 3, 2009

Filed:

Feb 28, 2008

Appl. No.:

12/038862

Inventors:

Alan D. Kalvin - Irvington NY, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY

International Classification:

G06T 15/20

US Classification:

345427

Abstract:

Embodiments of the present invention address deficiencies of the art in respect to 3D visualization of object volumes and provide a method, system and computer program product for fast 3D visualization of object volumes without image reconstruction by direct display of acquired sensor data. In an embodiment of the invention, a method for fast 3D visualization of object volumes without image reconstruction can be provided. The method can include acquiring a 3D dataset from an scanner of a 3D object volume, slicing the acquired sensor data without image reconstruction to produce a sequence of 2D images in Radon space and playing back the sequence of 2D images in a movie player to provide a rotating view of the 3D object volume.

US Patent:

62925784, Sep 18, 2001

Filed:

Aug 4, 2000

Appl. No.:

9/632620

Inventors:

Alan David Kalvin - Irvington NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06K 900
G06K 942
A61B 600

US Classification:

382131

Abstract:

Noise-corrupted boundary information in tomographic images is restored using a data structure, called a "boundary envelope". Both the restored boundary information and a measure of the precision of the restoration are described by the process. This data structure is used to describe the restored information in both qualitative and quantitative terms. The results of the boundary restoration process are described qualitatively by graphically displaying the boundary envelope together with the noisy CT image in such a way that allows a human observer to (a) see more details of the boundary than are visible in the CT image alone, and (b) to visually apprehend the precision with which the boundary has been restored. A boundary envelope describes a region in the image within which the boundary of a given noisy object is guaranteed to lie. The boundary envelope describes a set of limits on the object boundary, and limits on those properties of a noisy object that can be computed from boundary information.

US Patent:

62018884, Mar 13, 2001

Filed:

Feb 18, 1998

Appl. No.:

9/025675

Inventors:

Alan David Kalvin - Irvington NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06K 900
G06K 936
A61B 600
G01T 1166

US Classification:

382131

Abstract:

Noise-corrupted boundary information in tomographic images is restored using a data structure, called a "boundary envelope". Both the restored boundary information and a measure of the precision of the restoration are described by the process. This data structure is used to describe the restored information in both qualitative and quantitative terms. The results of the boundary restoration process are described qualitatively by graphically displaying the boundary envelope together with the noisy CT image in such a way that allows a human observer to (a) see more details of the boundary than are visible in the CT image alone, and (b) to visually apprehend the precision with which the boundary has been restored. A boundary envelope describes a region in the image within which the boundary of a given noisy object is guaranteed to lie. The boundary envelope describes a set of limits on the object boundary, and limits on those properties of a noisy object that can be computed from boundary information.

US Patent:

60289074, Feb 22, 2000

Filed:

May 15, 1998

Appl. No.:

9/078522

Inventors:

Roy Lee Adler - Chappaqua NY
Alan David Kalvin - Irvington NY
Joseph Y. Margulies - Armonk NY
Charles P. Tresser - Marmaroneck NY
Chai Wah Wu - Ossining NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

A61B 603

US Classification:

378 4

Abstract:

A computer system and method solve the problem of getting a useful three-dimensional representation of an object like the spine using a small amount of data. This is done by gathering three-dimensional data in the form of a set of 2D computer tomography (CT) slices of a patient's bones and a coaxial set of 2D CT scout images, which are digital two-dimensional X-ray images that can be produced by a CT scanner; extracting from each of these three-dimensional data sets a corresponding stack of 2D contours; and constructing a 3D geometric model of the object. The main features of spinal deformation are captured by integrating these two sets of three-dimensional data, and constructing from them a three-dimensional geometric model of the spine. Scouts are usually used to monitor CT scan acquisition. Here, they are also used as an essential source of data.