Patents by Inventor Zhiwei Li

Zhiwei Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • OPTIMIZED OBJECT SCANNING USING SENSOR FUSION
    Publication number: 20170230641
    Abstract: Sensor fusion is utilized in an electronic device such as a head mounted display (HMD) device that has a sensor package equipped with different sensors so that information that is supplemental to captured 2D images of objects or scenes in a real world environment may be utilized to determine an optimized transform of image stereo-pairs and to discard erroneous data that would otherwise prevent successful scans used for construction of a 3D model in, for example, virtual world applications. Such supplemental information can include one or more of world location, world rotation, image data from an extended field of view (FOV), or depth map data.
    Type: Application
    Filed: February 8, 2016
    Publication date: August 10, 2017
    Inventors: Michael Scavezze, Arthur Tomlin, Rui Cai, Zhiwei Li
  • Flexible nanoimprint mold, method for fabricating the same, and mold usage on planar and curved substrate
    Patent number: 9676123
    Abstract: The present invention provides a flexible nanoimprint mold which can fabricate sub-15 nm ultra fine structures on either planar or curved substrates. The mold comprises a top ultra-thin rigid layer of imprint patterning features and a bottom thick flexible layer of polymer elastomer. The two distinct layers are preferably integrated via chemically bonding. The top layer of the mold enables a sub-15 nm resolution of pattern fabrication and the bottom layer affords a conformal contact to planar or curved surface of substrates. The methods for fabricating the same are disclosed.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: June 13, 2017
    Assignee: NANJING UNIVERSITY
    Inventors: Yanfeng Chen, Haixiong Ge, Zhiwei Li, Changsheng Yuan, Minghui Lu
  • SECURITY SYSTEMS FOR MITIGATING ATTACKS FROM A HEADLESS BROWSER EXECUTING ON A CLIENT COMPUTER
    Publication number: 20160344769
    Abstract: Computer systems and methods in various embodiments are configured for improving the security and efficiency of server computers interacting through an intermediary computer with client computers that may be executing malicious and/or autonomous headless browsers or “bots”.
    Type: Application
    Filed: May 21, 2015
    Publication date: November 24, 2016
    Inventor: ZHIWEI LI
  • Long-query retrieval
    Patent number: 9460122
    Abstract: Described herein is a technology that facilitates efficient large-scale similarity-based retrieval. In several embodiments documents, images, and/or other multimedia files are compactly represented and efficiently indexed to enable robust search using a long-query in a large-scale corpus. As described herein, these techniques include performing decomposition of a file, e.g., an image, a document containing an image, or a document-like representation of an image. The techniques use dimension reduction to obtain three parts, low-dimensional representations (major semantics), file specific terms (minor semantics), and background words, representing the major semantics in a feature vector and the minor semantics as keywords. Using the techniques described, file vectors are matched in a topic model and the results ranked based on the keywords.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: October 4, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Zhiwei Li, Lei Zhang, Rui Cai, Wei-Ying Ma, Heung-Yeung Shum
  • Sketch-based image search
    Patent number: 9449026
    Abstract: Sketch-based image search may include receiving a query curve as a sketch query input and identifying a first plurality of oriented points based on the query curve. The first plurality of oriented points may be used to locate at least one image having a curve that includes a second plurality of oriented points that match at least some of the first plurality of oriented points. Implementations also include indexing a plurality of images by identifying at least one curve in each image and generating an index comprising a plurality of oriented points as index entries. The index entries are associated with the plurality of images based on corresponding oriented points in the identified curves in the images.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: September 20, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Changhu Wang, Zhiwei Li, Lei Zhang
  • FLEXIBLE NANOIMPRINT MOLD, METHOD FOR FABRICATING THE SAME, AND MOLD USAGE ON PLANAR AND CURVED SUBSTRATE
    Publication number: 20160214281
    Abstract: The present invention provides a flexible nanoimprint mold which can fabricate sub-15 nm ultra fine structures on either planar or curved substrates. The mold comprises a top ultra-thin rigid layer of imprint patterning features and a bottom thick flexible layer of polymer elastomer. The two distinct layers are preferably integrated via chemically bonding. The top layer of the mold enables a sub-15 nm resolution of pattern fabrication and the bottom layer affords a conformal contact to planar or curved surface of substrates. The methods for fabricating the same are disclosed.
    Type: Application
    Filed: April 5, 2016
    Publication date: July 28, 2016
    Applicant: Nanjing University
    Inventors: Yanfeng Chen, Haixiong Ge, Zhiwei Li, Changsheng Yuan, Minghui Lu
  • User interface for three-dimensional modeling
    Patent number: 9338440
    Abstract: A method of acquiring a set of images useable to 3D model a physical object includes imaging the physical object with a camera, and displaying with the camera a current view of the physical object as imaged by the camera from a current perspective. The method further includes displaying with the camera a visual cue overlaying the current view and indicating perspectives from which the physical object is to be imaged to acquire the set of images.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: May 10, 2016
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Zhiwei Li, Rui Cai, Jiawei Gu, Lei Zhang, Yong Rui
  • Flexible nanoimprint mold, method for fabricating the same, and mold usage on planar and curved substrate
    Patent number: 9316903
    Abstract: The present invention provides a flexible nanoimprint mold which can fabricate sub-15 nm ultra fine structures on either planar or curved substrates. The mold comprises a top ultra-thin rigid layer of imprint patterning features and a bottom thick flexible layer of polymer elastomer. The two distinct layers are preferably integrated via chemically bonding. The top layer of the mold enables a sub-15 nm resolution of pattern fabrication and the bottom layer affords a conformal contact to planar or curved surface of substrates. The methods for fabricating the same are disclosed.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: April 19, 2016
    Assignee: Nanjing University
    Inventors: Yanfeng Chen, Haixiong Ge, Zhiwei Li, Changsheng Yuan, Minghui Lu
  • Anti-loose socket and pull-out locking mechanism thereof
    Patent number: 9088102
    Abstract: The present invention relates to an anti-loose socket and a pull-out locking mechanism thereof, wherein inside the anti-loose socket, there are a pull-out locking mechanism composed of a bevelled sleeve (15) and two cylinders (16) arranged in a symmetrical manner at two sides within the bevelled sleeve; an inside longitudinal section of the bevelled sleeve has a cone angle in an umbrella shape, the middle portion of the bevelled sleeve allows a plug pin (61) to pass through; the cylinder is mounted on a floating block (14) movable up and down, and can move up and down along the inside conical surface of the bevelled sleeve by the floating block. When the plug (6) is pulled out upwards, the cylinder moves upwards, however due to the limiting action of the bevel surface, the cylinders stick to the two bevel surfaces more and more tightly.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: July 21, 2015
    Assignee: BULL GROUP CO., LTD
    Inventors: Yingfeng Cai, Zhiwei Li
  • Identifying visual contextual synonyms
    Patent number: 9082040
    Abstract: Tools and techniques for identifying visual contextual synonyms are described herein. The described operations use visual words having similar contextual distributions as contextual synonyms to identify and describe visual objects that share semantic meaning. The contextual distribution of a visual word is described using the statistics of co-occurrence and spatial information averaged over image patches that share the visual word. In various implementations, the techniques are employed to construct a visual contextual synonym dictionary for a large visual vocabulary. In various implementations, the visual contextual synonym dictionary narrows the semantic gap for large-scale visual search.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: July 14, 2015
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Rui Cai, Zhiwei Li, Lei Zhang, Wenbin Tang
  • Three-dimensional visual phrases for object recognition
    Patent number: 8983201
    Abstract: The techniques discussed herein discover three-dimensional (3-D) visual phrases for an object based on a 3-D model of the object. The techniques then describe the 3-D visual phrases. Once described, the techniques use the 3-D visual phrases to detect the object in an image (e.g., object recognition).
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: March 17, 2015
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Rui Cai, Zhiwei Li, Lei Zhang, Qiang Hao
  • FLEXIBLE NANOIMPRINT MOLD, METHOD FOR FABRICATING THE SAME, AND MOLD USAGE ON PLANAR AND CURVED SUBSTRATE
    Publication number: 20150024308
    Abstract: The present invention provides a flexible nanoimprint mold which can fabricate sub-15 nm ultra fine structures on either planar or curved substrates. The mold comprises a top ultra-thin rigid layer of imprint patterning features and a bottom thick flexible layer of polymer elastomer. The two distinct layers are preferably integrated via chemically bonding. The top layer of the mold enables a sub-15 nm resolution of pattern fabrication and the bottom layer affords a conformal contact to planar or curved surface of substrates. The methods for fabricating the same are disclosed.
    Type: Application
    Filed: September 29, 2014
    Publication date: January 22, 2015
    Applicant: NANJING UNIVERSITY
    Inventors: Yanfeng Chen, Haixiong Ge, Zhiwei Li, Changsheng Yuan, Minghui Lu
  • USER INTERFACE FOR THREE-DIMENSIONAL MODELING
    Publication number: 20140368620
    Abstract: A method of acquiring a set of images useable to 3D model a physical object includes imaging the physical object with a camera, and displaying with the camera a current view of the physical object as imaged by the camera from a current perspective. The method further includes displaying with the camera a visual cue overlaying the current view and indicating perspectives from which the physical object is to be imaged to acquire the set of images.
    Type: Application
    Filed: June 17, 2013
    Publication date: December 18, 2014
    Inventors: Zhiwei Li, Rui Cai, Jiawei Gu, Lei Zhang, Yong Rui
  • Flexible nanoimprint mold, method for fabricating the same, and mold usage on planar and curved substrate
    Patent number: 8871048
    Abstract: The present invention provides a flexible nanoimprint mold which can fabricate sub-15 nm ultra fine structures on either planar or curved substrates. The mold comprises a top ultra-thin rigid layer of imprint patterning features and a bottom thick flexible layer of polymer elastomer. The two distinct layers are preferably integrated via chemically bonding. The top layer of the mold enables a sub-15 nm resolution of pattern fabrication and the bottom layer affords a conformal contact to planar or curved surface of substrates. The methods for fabricating the same are disclosed.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: October 28, 2014
    Assignee: Nanjing University
    Inventors: Yanfeng Chen, Haixiong Ge, Zhiwei Li, Changsheng Yuan, Minghui Lu
  • Image retrieval using spatial bag-of-features
    Patent number: 8849030
    Abstract: Local features of retrieved images are identified and for each image, an ordered bag-of-features is created that describes the features of the image. Spatial relationships between features of an image are captured in histogram descriptors created from linear or circular projections. Using the histogram descriptors, ordered bags-of-features describing the features of the images are developed. Calibrating the ordered bags-of-features to account for spatial variance leads to spatial bags-of-features.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: September 30, 2014
    Assignee: Microsoft Corporation
    Inventors: Changhu Wang, Zhiwei Li, Lei Zhang
  • Scoring relevance of a document based on image text
    Patent number: 8645370
    Abstract: A method and system for determining relevance of a document having text and images to a text string is provided. A scoring system identifies image text associated with an image of the document. The scoring system calculates an image score indicating relevance of the image text to the text string. The image score may be used in many applications, such as searching, summary generation, and document classification, image search, and image classification.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: February 4, 2014
    Assignee: Microsoft Corporation
    Inventors: Qing Yu, Shuming Shi, Zhiwei Li, Ji-Rong Wen, Wei-Ying Ma
  • THREE-DIMENSIONAL VISUAL PHRASES FOR OBJECT RECOGNITION
    Publication number: 20140029856
    Abstract: The techniques discussed herein discover three-dimensional (3-D) visual phrases for an object based on a 3-D model of the object. The techniques then describe the 3-D visual phrases. Once described, the techniques use the 3-D visual phrases to detect the object in an image (e.g., object recognition).
    Type: Application
    Filed: July 30, 2012
    Publication date: January 30, 2014
    Applicant: MICROSOFT CORPORATION
    Inventors: Rui Cai, Zhiwei Li, Lei Zhang, Qiang Hao
  • Long-Query Retrieval
    Publication number: 20130346416
    Abstract: Described herein is a technology that facilitates efficient large-scale similarity-based retrieval. In several embodiments documents, images, and/or other multimedia files are compactly represented and efficiently indexed to enable robust search using a long-query in a large-scale corpus. As described herein, these techniques include performing decomposition of a file, e.g., an image, a document containing an image, or a document-like representation of an image. The techniques use dimension reduction to obtain three parts, low-dimensional representations (major semantics), file specific terms (minor semantics), and background words, representing the major semantics in a feature vector and the minor semantics as keywords. Using the techniques described, file vectors are matched in a topic model and the results ranked based on the keywords.
    Type: Application
    Filed: December 3, 2012
    Publication date: December 26, 2013
    Applicant: Microsoft Corporation
    Inventors: Zhiwei Li, Lei Zhang, Rui Cai, Wei-Ying Ma, Heung-Yeung Shum
  • Chair
    Patent number: D766605
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: September 20, 2016
    Assignee: LEE VALUE INC.
    Inventor: Zhiwei Li
  • Chair
    Patent number: D788508
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: June 6, 2017
    Assignee: SSOHHO INC CHANGZHOU CO., LTD.
    Inventor: Zhiwei Li