Patents by Inventor Haiying Liu

Haiying Liu 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).

  • Publication number: 20180089514
    Abstract: Provided is a computer-implemented method for processing one or more video frames. The meth can include generating, by a processor, a change in value of one or more pixels obtained from the one or more video frames; classifying, by the processor, the change in value of the one or more pixels to produce one or more classes of the change in value of the one or more pixels, wherein the one or more classes include one or more of a stationary target, a moving target, a target insertion, a target removal, or a local change; and constructing, by the processor, a listing of detected targets based on the one or more classes.
    Type: Application
    Filed: September 26, 2017
    Publication date: March 29, 2018
    Inventors: Khurram Hassan-Shafique, Péter L. Venetianer, Li Yu, Haiying Liu
  • Patent number: 9792503
    Abstract: Provided is a computer-implemented method for processing one or more video frames. The meth can include generating, by a processor, a change in value of one or more pixels obtained from the one or more video frames; classifying, by the processor, the change in value of the one or more pixels to produce one or more classes of the change in value of the one or more pixels, wherein the one or more classes include one or more of a stationary target, a moving target, a target insertion, a target removal, or a local change; and constructing, by the processor, a listing of detected targets based on the one or more classes.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: October 17, 2017
    Assignee: AVIGILON FORTRESS CORPORATION
    Inventors: Khurram Hassan-Shafique, Péter L. Venetianer, Li Yu, Haiying Liu
  • Publication number: 20170270649
    Abstract: Embodiments are directed to systems and methods to intelligently reduce the dynamic range of a signal. Using a histogram analysis of the signal, significant and insignificant portions of the original dynamic range can be identified. Compaction can then be focused on the insignificant portions of the dynamic range, resulting in significant dynamic range reduction with less signal loss. By compacting the little used portions of the original signal, the dynamic range of the rest of the signal can be largely maintained which results in little loss to signal fidelity, and thus mitigates saturation, quantization, signal mutual suppression, and other issues observed in prior art methods.
    Type: Application
    Filed: June 6, 2017
    Publication date: September 21, 2017
    Applicant: DRS Network & Imaging Systems, LLC
    Inventors: Haiying Liu, James Pittman
  • Patent number: 9704226
    Abstract: Embodiments are directed to systems and methods to intelligently reduce the dynamic range of a signal. Using a histogram analysis of the signal, significant and insignificant portions of the original dynamic range can be identified. Compaction can then be focused on the insignificant portions of the dynamic range, resulting in significant dynamic range reduction with less signal loss. By compacting the little used portions of the original signal, the dynamic range of the rest of the signal can be largely maintained which results in little loss to signal fidelity, and thus mitigates saturation, quantization, signal mutual suppression, and other issues observed in prior art methods.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: July 11, 2017
    Assignee: DRS Network & Imaging Systems, LLC
    Inventors: Haiying Liu, James Pittman
  • Patent number: 9623123
    Abstract: The present invention provides various fluorescent conjugated polymers with a BODIPY-based backbone. The invention also provides methods of using the polymers of the invention, such as for imaging and detection of cells, tumors, bacteria and viruses.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: April 18, 2017
    Assignee: MICHIGAN TECHNOLOGICAL UNIVERSITY
    Inventor: Haiying Liu
  • Publication number: 20170014532
    Abstract: The present invention provides various fluorescent conjugated polymers with a BODIPY-based backbone. The invention also provides methods of using the polymers of the invention, such as for imaging and detection of cells, tumors, bacteria and viruses.
    Type: Application
    Filed: July 22, 2016
    Publication date: January 19, 2017
    Inventor: Haiying Liu
  • Publication number: 20160379346
    Abstract: Embodiments are directed to systems and methods to intelligently reduce the dynamic range of a signal. Using a histogram analysis of the signal, significant and insignificant portions of the original dynamic range can be identified. Compaction can then be focused on the insignificant portions of the dynamic range, resulting in significant dynamic range reduction with less signal loss. By compacting the little used portions of the original signal, the dynamic range of the rest of the signal can be largely maintained which results in little loss to signal fidelity, and thus mitigates saturation, quantization, signal mutual suppression, and other issues observed in prior art methods.
    Type: Application
    Filed: March 14, 2014
    Publication date: December 29, 2016
    Applicant: DRS RSTA, INC.
    Inventors: Haiying Liu, James Pittman
  • Patent number: 9412949
    Abstract: The present invention provides various fluorescent conjugated polymers with a BODIPY-based backbone. The invention also provides methods of using the polymers of the invention, such as for imaging and detection of cells, tumors, bacteria and viruses.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: August 9, 2016
    Assignee: MICHIGAN TECHNOLOGICAL UNIVERSITY
    Inventor: Haiying Liu
  • Publication number: 20160220313
    Abstract: A multi-modality imaging device is provided for use in surgical procedures. The disclosed imaging device incorporates a line of sight surface tissue imaging device and a sub-surface tissue imaging device into a single instrument to facilitate sub-surface surgical procedures. The line of sight surface tissue imaging device may be movably mounted relative to the sub-surface tissue imaging device and movable between a retained position and a deployed position offset from a longitudinal axis of the sub-surface tissue imaging device. Alternatively, the line of sight surface tissue imaging device may be stationary and concentric around the sub-surface tissue imaging device. There is also disclosed a system including a multi-modality imaging device mounted on a surgical instrument.
    Type: Application
    Filed: August 12, 2014
    Publication date: August 4, 2016
    Inventors: Ravi Durvasula, Haiying Liu
  • Publication number: 20160030077
    Abstract: An ultrasonic surgical instrument is disclosed, and includes a handle assembly, an elongate tubular member, and an end effector. The elongate tubular member extends from the handle assembly and defines a channel therethrough. The end effector is coupled with a distal end of the elongate tubular member and includes a first jaw member pivotably attached to the tubular member, and a second jaw member longitudinally movable within the channel of the elongate tubular member. One of the first jaw member and the second jaw member includes at least one ultrasonic transducer.
    Type: Application
    Filed: March 11, 2014
    Publication date: February 4, 2016
    Inventors: Ravi Durvasula, Wei Tan, Haiying Liu, Jiqi Cheng
  • Patent number: 9240051
    Abstract: A video camera may overlook a monitored area from any feasible position. An object flow estimation module monitor the moving direction of the objects in the monitored area. It may separate the consistently moving objects from the other objects. A object count estimation module may compute the object density (e.g. crowd). A object density classification module may classify the density into customizable categories.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: January 19, 2016
    Assignee: Avigilon Fortress Corporation
    Inventors: Haiying Liu, Peter L. Venetianer, Niels Haering, Omar Javed, Alan J. Lipton, Andrew Martone, Zeeshan Rasheed, Weihong Yin, Li Yu, Zhong Zhang
  • Publication number: 20150146929
    Abstract: Provided is a computer-implemented method for processing one or more video frames. The meth can include generating, by a processor, a change in value of one or more pixels obtained from the one or more video frames; classifying, by the processor, the change in value of the one or more pixels to produce one or more classes of the change in value of the one or more pixels, wherein the one or more classes include one or more of a stationary target, a moving target, a target insertion, a target removal, or a local change; and constructing, by the processor, a listing of detected targets based on the one or more classes.
    Type: Application
    Filed: January 30, 2015
    Publication date: May 28, 2015
    Inventors: Khurram Hassan-Shafique, Péter L. Venetianer, Li Yu, Haiying Liu
  • Patent number: 8948458
    Abstract: A computer-implemented method for processing one or more video frames may include obtaining one or more video frames; generating one or more blobs using the one or more video frames; classifying the one or more blobs to produce one or more classified blobs, wherein the one or more classified blobs include one or more of a stationary target, a moving target, a target insertion, a target removal, or a local change; and constructing a list of detected targets based on the one or more classified blobs.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: February 3, 2015
    Assignee: ObjectVideo, Inc
    Inventors: Khurram Hassan-Shafique, Péter L. Venetianer, Li Yu, Haiying Liu
  • Publication number: 20140275994
    Abstract: A real time image guidance system is provided having an imaging device configured to capture a surface image of tissue and an ultrasound device configured to capture a sub-surface image of tissue. An imaging processor combines the surface image and the sub-surface image to generate a three-dimensional (3D) image that is displayed to a clinician.
    Type: Application
    Filed: February 3, 2014
    Publication date: September 18, 2014
    Applicant: Covidien LP
    Inventors: Haiying Liu, Ravi Durvasula
  • Publication number: 20130338493
    Abstract: The present disclosure relates to systems, devices and methods of highlighting points or regions of interest on a body structure. These systems, devices and methods allow for real-time highlighting of those points or regions that account for repositioning of the viewing instrument that is transmitting the images.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 19, 2013
    Applicant: Covidien LP
    Inventors: Ravi Durvasula, Alexey Sharonov, Candido Dionisio Pinto, Haiying Liu
  • Publication number: 20130315444
    Abstract: A computer-implemented method for processing one or more video frames may include obtaining one or more video frames; generating one or more blobs using the one or more video frames; classifying the one or more blobs to produce one or more classified blobs, wherein the one or more classified blobs include one or more of a stationary target, a moving target, a target insertion, a target removal, or a local change; and constructing a list of detected targets based on the one or more classified blobs.
    Type: Application
    Filed: August 2, 2013
    Publication date: November 28, 2013
    Applicant: OBJECTVIDEO, INC.
    Inventors: Khurram Hassan-Shafique, Péter L. Venetianer, Li Yu, Haiying Liu
  • Patent number: 8526678
    Abstract: One or more video frames may be obtained, and a background model may be constructed based on a first parameter. A second background model may be constructed using the one or more video frames based on a second parameter, the second parameter being different from the first parameter. A difference between the first and second background models may be determined. One or more stationary targets may be determined based on the determined difference. The one or more stationary targets may be classified. An alert concerning the one or more classified stationary targets may be generated.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: September 3, 2013
    Assignee: ObjectVideo, Inc.
    Inventors: Haiying Liu, Li Yu, Khurram Hassan-Shafique, Péter L. Venetianer
  • Patent number: 8401229
    Abstract: A sequence of video frames of an area of interest is obtained. A first background model of the area of interest is constructed based on a first parameter. A second background model of the area of interest is constructed based on a second parameter, the second parameter being different from the first parameter. A difference between the first and second background models is determined. A stationary target is determined based on the determined difference. An alert concerning the stationary target is generated.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: March 19, 2013
    Assignee: ObjectVideo, Inc.
    Inventors: Khurram Hassan-Shafique, Peter L. Venetianer, Li Yu, Haiying Liu
  • Publication number: 20120070382
    Abstract: The present invention provides various fluorescent conjugated polymers with a BODIPY-based backbone. The invention also provides methods of using the polymers of the invention, such as for imaging and detection of cells, tumors, bacteria and viruses.
    Type: Application
    Filed: December 23, 2009
    Publication date: March 22, 2012
    Applicant: MICHIGAN TECHNOLOGICAL UNIVERSITY
    Inventor: Haiying Liu
  • Patent number: 7949150
    Abstract: A video sequence of a field of view within an environment is received. Targets are detected in the video sequence. Target geo-positional information is received. Correspondences between the targets detected in the video sequence and the target geo-positional information are determined and used to calibrate the camera and to geo-register a field of view of the camera.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: May 24, 2011
    Assignee: ObjectVideo, Inc.
    Inventors: Niels Haering, Zeeshan Rasheed, Khurram Hassan-Shafique, Asaad Hakeem, Omar Javed, Xiao Chun Cao, Haiying Liu, Li Yu, Donald G. Madden, Andrew J. Chosak, Geoffrey Taylor, Himaanshu Gupta, Alan J. Lipton