Steven Alan Weeks

US Patent:

7605817, Oct 20, 2009

Filed:

Nov 9, 2005

Appl. No.:

11/270135

Inventors:

Tong Zhang - Framingham MA, US
Janos Rohaly - Acton MA, US
Steven V. Weeks - North Andover MA, US

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

G06T 15/00

US Classification:

345473, 382107, 382154, 382285, 356 12, 348169

Abstract:

Camera motion is determined in a three-dimensional image capture system using a combination of two-dimensional image data and three-dimensional point cloud data available from a stereoscopic, multi-aperture, or similar camera system. More specifically, a rigid transformation of point cloud data between two three-dimensional point clouds may be more efficiently parameterized using point correspondence established between two-dimensional pixels in source images for the three-dimensional point clouds.

US Patent:

7813591, Oct 12, 2010

Filed:

Sep 3, 2006

Appl. No.:

11/469871

Inventors:

Eric B. Paley - Cambridge MA, US
Ilya A. Kriveshko - Littleton MA, US
Steven V. Weeks - North Andover MA, US
Edward K. Tekeian - Cambridge MA, US
Janos Rohaly - Acton MA, US

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

G06K 9/36
G06K 9/00

US Classification:

382285, 382108, 382154, 382128, 345418, 345589, 345629, 345649

Abstract:

The systems and methods disclosed herein provide visual feedback concerning one or more scanning parameters to a user during acquisition of a three dimensional scan.

US Patent:

7840042, Nov 23, 2010

Filed:

Sep 3, 2006

Appl. No.:

11/469869

Inventors:

Ilya A. Kriveshko - Littleton MA, US
Joseph Boerjes - Medford MA, US
Steven V. Weeks - North Andover MA, US
Janos Rohaly - Acton MA, US

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

G06K 9/00
A62B 1/04
A61C 1/00

US Classification:

382128, 382100, 382115, 433 29, 433171, 348 66

Abstract:

The systems and methods disclosed herein employ superposition of two-dimensional video and a rendered, three-dimensional image to provide visual feedback during acquisition and analysis of three-dimensional data. These systems and methods may be usefully employed in a context such as dentistry to assist in the acquisition of highly detailed and accurate digital dental models from the dentition of a dental patient.

US Patent:

7912257, Mar 22, 2011

Filed:

Sep 3, 2006

Appl. No.:

11/469870

Inventors:

Eric B. Paley - Cambridge MA, US
Janos Rohaly - Acton MA, US
Joseph Boerjes - Medford MA, US
Douglas P. Hart - Charlestown MA, US
Micah J. Rosenbloom - Boston MA, US
Steven V. Weeks - North Andover MA, US

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

G06K 9/00

US Classification:

382128, 382100, 382106, 382154, 382276, 345418, 345419, 345629, 345630, 433 24, 433 25, 433 29

Abstract:

The systems and methods disclosed herein provide real time display of three-dimensional dental data acquired intraorally from a dental patient.

US Patent:

7956862, Jun 7, 2011

Filed:

Sep 28, 2009

Appl. No.:

12/568124

Inventors:

Tong Zhang - Framingham MA, US
Janos Rohaly - Acton MA, US
Steven V. Weeks - North Andover MA, US

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

G06T 15/00

US Classification:

345473, 345474, 345475, 345419, 382107, 382154, 382285, 348169, 356 12

Abstract:

Camera motion is determined in a three-dimensional image capture system using a combination of two-dimensional image data and three-dimensional point cloud data available from a stereoscopic, multi-aperture, or similar camera system. More specifically, a rigid transformation of point cloud data between two three-dimensional point clouds may be more efficiently parameterized using point correspondence established between two-dimensional pixels in source images for the three-dimensional point clouds.

US Patent:

8454365, Jun 4, 2013

Filed:

Jan 19, 2007

Appl. No.:

12/161252

Inventors:

Joseph Boerjes - Medford MA, US
Simon K. J. Schiessl - Berlin, DE
Michael P. Girard - Ontario, CA
Micah J. Rosenbloom - Boston MA, US
Eric B. Paley - Somerville MA, US
Edward K. Tekeian - Cambridge MA, US
Steven V. Weeks - North Andover MA, US
David E. Altobelli - Hollis NH, US
Douglas M. Johnston - Winchester MA, US
Janos Rohaly - Acton MA, US

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

A61C 5/00

US Classification:

433223, 700105

Abstract:

The systems and methods disclosed herein employ a scanning system for capturing highly detailed digital dental models. These models may be used within a dentist's office for a wide array of dental functions including quality control, restoration design, and fitting. These models may also, or instead, be transmitted to dental laboratories that may, alone or in collaboration with the originating dentist or other dental professionals, transform the digital model into a physical realization of a dental hardware item.

US Patent:

20120032833, Feb 9, 2012

Filed:

Jan 5, 2011

Appl. No.:

12/984736

Inventors:

Stephen D. Milligan - Stow MA, US
Jason Redi - Belmont MA, US
Jonathan Fisher - Dartmouth MA, US
Daniel Sumorok - Medford MA, US
Steven W. Weeks - North Andover MA, US

International Classification:

G01S 13/00

US Classification:

342 59

Abstract:

Techniques disclosed herein include systems and methods for accurately scheduling radar and radio events against each other. Specifically, a scheduling manager can schedule radar events based on scheduled radio events (wireless network communication events). A given radio schedule for a compact radar sensor can be a relatively complicated schedule, especially when the compact radar sensor operates as part of an ad hoc network. In certain embodiments, the scheduling manager identifies a radio transmission schedule of neighboring radar nodes or compact radar sensor units. Such a radio transmission schedule of neighboring nodes can include information on when neighboring nodes will be receiving or transmitting data. The scheduling manager then schedules radar events to be executed by the radar device at available times, or at times that do not overlap with scheduled radio events.

US Patent:

20120032834, Feb 9, 2012

Filed:

Jun 17, 2011

Appl. No.:

13/163124

Inventors:

Steven V. Weeks - North Andover MA, US

International Classification:

G01S 13/08
G06F 21/00
H04Q 5/22

US Classification:

342118, 340 101, 726 36

Abstract:

Embodiments disclosed herein include a sensor device that monitors external activity and that includes functionality to detect tampering of the device itself. When monitoring for tampering, a power switch is disabled. Techniques include detecting relative movement of the sensor device, reporting tampering activity, and executing tamper detection responses. Responses can include tracking geographical movement and/or subsequent tampering activity to assist in recovery of a transported device. Responses can also include adjusting power consumption such as by modifying sensing functionality of the sensor device. Techniques include use of an accelerometer that can be positioned in the sensor device to detect relative movement. Once relative movement meets a predetermined threshold indicating device tampering, the sensor device transmits a notification of such tampering, via a network, or in response to a query from an authorized peer device.