Wei Li

US Patent:

6508553, Jan 21, 2003

Filed:

May 14, 2001

Appl. No.:

09/854861

Inventors:

Feng Gao - Manlius NY
Wei Li - Manlius NY

Assignee:

Virtual Visual Devices, LLC - Syracuse NY

International Classification:

A61B 304

US Classification:

351227

Abstract:

A method of determining eyeglass frame parameters from a digital image of the persons face and a digital image of an eyeglass frame. The method comprises the steps of: (a) providing a digital image of the persons face; (b) determining a physical scale of the face using a scaling factor; (c) locating center points P , P of the left and right irises in the face image, and determining a pupil midpoint P ; (d) providing a digital image of an eyeglass frame; (e) adjusting, if necessary, the size of the frame to the physical scale of the face; (f) combining the frame and face images such that the frame is superimposed on the face; (g) aligning the frame and face in accordance with the frame center point f and the pupil midpoint P ; and (h) determining the frame parameters.

US Patent:

20120321162, Dec 20, 2012

Filed:

Jun 14, 2012

Appl. No.:

13/517633

Inventors:

Chunlei Liu - Chapel Hill NC, US
Wei Li - Durham NC, US
Bing Wu - Beijing, CN

International Classification:

G06K 9/36

US Classification:

382131

Abstract:

Systems and methods for imaging and quantifying tissue magnetism with magnetic resonance imaging (MRI) are disclosed. According to an aspect, a method for MRI includes using an MRI system to acquire multiple image echoes of an object. The method also includes combining the image echoes. Further, the method includes generating an image of the object based on the combined image echoes for depicting a characteristic of the object.

US Patent:

62311883, May 15, 2001

Filed:

Jul 31, 2000

Appl. No.:

9/629763

Inventors:

Feng Gao - Manlius NY
Wei Li - Manlius NY

International Classification:

A61B 304

US Classification:

351227

Abstract:

An interactive eyewear selection system comprising: a video camera and digitizing system for acquiring a digital image of a person's face, including the temple areas of the face; an eyeglass frames database for storing digital eyeglass frame images; an automated interface for selecting an eyeglass frame image from the frames database, the image containing frame temple portions; a digital processing system for automatically superimposing the selected frame image on the image of the person's face, in a composite image, such that the frame appears to be worn naturally on the person's face and the frame temple portions are shown at the temple areas of the face; and a display device for displaying the digital image of the person's face and for displaying the composite image.

US Patent:

51560798, Oct 20, 1992

Filed:

Jun 5, 1990

Appl. No.:

7/533482

Inventors:

Aly El-Shiekh - Raleigh NC
Wei Li - Raleigh NC
Mohamed Hammad - Raleigh NC

Assignee:

North Carolina State University - Raleigh NC

International Classification:

D04C 318

US Classification:

87 57

Abstract:

A yarn carrier apparatus particularly suited for use in braiding machinery or the like due to its capability of continuous yarn feeding and retraction of long lengths of yarn. The yarn carrier apparatus comprises a yarn supply spool which is rotatably mounted within the housing, a spring motor also mounted within the housing and operatively connected to the yarn supply spool through a mechanical transmission assembly which is adapted to multiply rotational movement between the first element of the gear assembly operatively connected to the spring motor and the final element of the gear assembly operatively connected to the yarn supply spool. The spring motor is adapted to tension the yarn during both feeding and retraction thereof, and it is further adapted to periodically rotatably slip within the housing and partially unwind so as to allow for continuous withdrawal of a long length of yarn without the spring motor becoming fully wound and preventing further yarn retraction.

US Patent:

6095650, Aug 1, 2000

Filed:

Sep 22, 1998

Appl. No.:

9/158480

Inventors:

Feng Gao - Manlius NY
Wei Li - Manlius NY

Assignee:

Virtual Visual Devices, LLC - Syracuse NY

International Classification:

A61B 304

US Classification:

351227

Abstract:

An interactive eyewear selection system comprising: a video camera and digitizing system for acquiring a digital image of a person's face, including the temple areas of the face; an eyeglass frames database for storing digital eyeglass frame images; an automated interface for selecting an eyeglass frame image from the frames database, the image containing frame temple portions; a digital processing system for automatically superimposing the selected frame image on the image of the person's face, in a composite image, such that the frame appears to be worn naturally on the person's face and the frame temple portions are shown at the temple areas of the face; and a display device for displaying the digital image of the person's face and for displaying the composite image.

US Patent:

20200216614, Jul 9, 2020

Filed:

Sep 11, 2018

Appl. No.:

16/648183

Inventors:

- Wilmington DE, US
John Donald Summers - Chapel Hill NC, US
Nora Sabina Radu - Landenberg PA, US
Chai Kit Ngai - Wilmington DE, US
Wayne Atkinson - New Castle DE, US
Wei Li - Middletown DE, US
Jonathan Timothy Maeyer - Haddonfield NJ, US

International Classification:

C08G 73/10
C08J 5/18
G02B 1/04
G02F 1/1333

Abstract:

Disclosed is a polyimide film generated from a solution containing a polyamic acid in a high-boiling, aprotic solvent; wherein the polyamic acid comprises one or more tetracarboxylic acid components and one or more diamine components; and wherein at least one of the tetracarboxylic acid components is a quadrivalent organic group derived from a bent dianhydride or an aromatic dianhydride comprising —O—, —CO—, —NHCO—, —S—, —SO—, —CO—O—, or —CR— links, or a direct chemical bond between aromatic rings; and wherein at least one of the diamine components is a divalent organic group derived from a bent diamine or an aromatic diamine comprising the same links, or a direct chemical bond between aromatic rings; and wherein R is the same or different at each occurrence and is selected from the group consisting of H, F, alkyl, and fluoroalkyl.

US Patent:

20200172675, Jun 4, 2020

Filed:

Aug 8, 2018

Appl. No.:

16/637897

Inventors:

- Wilmington DE, US
John Donald Summers - Chapel Hill NC, US
Brian C. Auman - Avondale PA, US
Wayne Atkinson - New Castle DE, US
Wei Li - Middletown DE, US
Chai Kit Ngai - Wilmington DE, US

International Classification:

C08G 73/10
C08J 5/18
H01L 27/32
H01L 51/00
H01L 51/52

Abstract:

Disclosed is a solution containing a polyamic acid in a high-boiling, aprotic solvent; wherein the polyamic acid contains two or more tetracarboxylic acid components and one or more diamine components; and wherein at least one of the tetracarboxylic acid components is a quadrivalent organic group derived from an aliphatic dianhydride. Polyimide films made from the solutions are also disclosed, as are their methods of production and uses in electronic devices.

US Patent:

20160252597, Sep 1, 2016

Filed:

Mar 9, 2016

Appl. No.:

15/065803

Inventors:

Chunlei Liu - Chapel Hill NC, US
Wei Li - Durham NC, US
Bing Wu - Beijing, CN

International Classification:

G01R 33/561
G01R 33/56
G01R 33/48
G01R 33/565

Abstract:

Systems and methods for imaging and quantifying tissue magnetism with magnetic resonance imaging (MRI) are disclosed. According to an aspect, a method for MRI includes using an MRI system to acquire multiple image echoes of an object. The method also includes combining the image echoes. Further, the method includes generating an image of the object based on the combined image echoes for depicting a characteristic of the object.