3m Innovative Properties Company

3com Corporation

Steven V Weeks

Janos Rohaly

Eric B Paley

Joseph Boerjes

Micah J Rosenbloom

Edward K Tekeian

David E Altobelli

Ilya A Kriveshko

Douglas M Johnston

Tong Zhang

Michael P Girard

Simon K J Schiessl

Douglas P Hart

Michael Sean McCormack

Paul Francis Dryer

Joseph Boeries

Diana Fayngersh Lee

Simon KJ Schiessl

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.

Digital dentistry

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.

Determining camera motion

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

Real time display of acquired 3D dental data

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.

Superposition for visualization of three-dimensional data acquisition

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.

Visual feedback of 3D scan parameters

A telecommunication apparatus and method for providing packets to at least one of a first and a second network are described. A telephone set connects the first network to the second network. In one embodiment, the telephone set includes two MAC devices. Each MAC device is in electrical communication with one of the two networks via a communication path. In another embodiment, a packet switching device provides the separate communication paths to the two networks. The telephone set forwards packets received from one network to the other network, generates packets from signals locally inputted into the telephone set and forwards such generated packets to at least one of the networks, and performs actions prescribed by packets received by and addressed to the telephone set. Packets addressed to the telephone set may or may not be forwarded.

Telecommunication apparatus and method for forwarding packets using separate collision domains

Growing community of inventors

North Andover, MA, United States of America

Steven V Weeks