Patents by Inventor Hien Nguyen

Hien Nguyen 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).

  • Patent number: 9633306
    Abstract: A method and system for approximating a deep neural network for anatomical object detection is discloses. A deep neural network is trained to detect an anatomical object in medical images. An approximation of the trained deep neural network is calculated that reduces the computational complexity of the trained deep neural network. The anatomical object is detected in an input medical image of a patient using the approximation of the trained deep neural network.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: April 25, 2017
    Assignee: Siemens Healthcare GmbH
    Inventors: David Liu, Nathan Lay, Shaohua Kevin Zhou, Jan Kretschmer, Hien Nguyen, Vivek Kumar Singh, Yefeng Zheng, Bogdan Georgescu, Dorin Comaniciu
  • Patent number: 9595120
    Abstract: A method and apparatus for medical image synthesis across image modalities or domains is disclosed, which synthesizes a target medical image based on a source medical image. A plurality of image patches are cropped from the source medical image. A synthesized target medical image is then generated from the source medical image by jointly performing sparse coding between each image patch of the source medical image and a corresponding image patch of the synthesized target image based on jointly trained source and target dictionaries.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: March 14, 2017
    Assignee: Siemens Healthcare GmbH
    Inventors: Hien Nguyen, Shaohua Kevin Zhou
  • Publication number: 20170058505
    Abstract: A connection is provided between first and second building structural members, wherein a connector is made up of a stiffener and a connection element, and the stiffener nests within the connection element, and both the stiffener and the connection element are attached to the second building structural member with the same fastener or fasteners, and similarly, both the stiffener and the connection element are attached to the first building structural member with the same fastener or fasteners.
    Type: Application
    Filed: August 25, 2016
    Publication date: March 2, 2017
    Inventors: Larry Randall Daudet, Jin-Jie Lin, Timothy M. Stauffer, Hien Nguyen
  • Patent number: 9582916
    Abstract: A method and apparatus for unsupervised cross-modal medical image synthesis is disclosed, which synthesizes a target modality medical image based on a source modality medical image without the need for paired source and target modality training data. A source modality medical image is received. Multiple candidate target modality intensity values are generated for each of a plurality of voxels of a target modality medical image based on corresponding voxels in the source modality medical image. A synthesized target modality medical image is generated by selecting, jointly for all of the plurality of voxels in the target modality medical image, intensity values from the multiple candidate target modality intensity values generated for each of the plurality of voxels. The synthesized target modality medical image can be refined using coupled sparse representation.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: February 28, 2017
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventors: Raviteja Vemulapalli, Hien Nguyen, Shaohua Kevin Zhou
  • Patent number: 9538925
    Abstract: A method and system for determining fractional flow reserve (FFR) for a coronary artery stenosis of a patient is disclosed. In one embodiment, medical image data of the patient including the stenosis is received, a set of features for the stenosis is extracted from the medical image data of the patient, and an FFR value for the stenosis is determined based on the extracted set of features using a trained machine-learning based mapping. In another embodiment, a medical image of the patient including the stenosis of interest is received, image patches corresponding to the stenosis of interest and a coronary tree of the patient are detected, an FFR value for the stenosis of interest is determined using a trained deep neural network regressor applied directly to the detected image patches.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: January 10, 2017
    Assignee: Siemens Healthcare GmbH
    Inventors: Puneet Sharma, Ali Kamen, Bogdan Georgescu, Frank Sauer, Dorin Comaniciu, Yefeng Zheng, Hien Nguyen, Vivek Kumar Singh
  • Publication number: 20160371574
    Abstract: A radio-frequency identification (RFID)-based system for automatically tracking objects used in surgical procedures, and methods of use thereof, are disclosed. More particularly, an objects monitoring system is provided that includes a set of RFID tagged-objects (e.g., RFID tagged-surgical instruments), an RFID reader, an RFID reader antenna installed in a disposable wearable article, a computing device, and optionally a centralized server.
    Type: Application
    Filed: May 6, 2014
    Publication date: December 22, 2016
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Hien NGUYEN, Jonathan LEMOEL, Brandon Jay BHASIN, Jimmy SU, Robert HUBBARD, Sean REEDER, Lisa ACKLEY
  • Publication number: 20160328643
    Abstract: A method and system for approximating a deep neural network for anatomical object detection is discloses. A deep neural network is trained to detect an anatomical object in medical images. An approximation of the trained deep neural network is calculated that reduces the computational complexity of the trained deep neural network. The anatomical object is detected in an input medical image of a patient using the approximation of the trained deep neural network.
    Type: Application
    Filed: May 7, 2015
    Publication date: November 10, 2016
    Inventors: David Liu, Nathan Lay, Shaohua Kevin Zhou, Jan Kretschmer, Hien Nguyen, Vivek Kumar Singh, Yefeng Zheng, Bogdan Georgescu, Dorin Comaniciu
  • Publication number: 20160314600
    Abstract: A method and apparatus for medical image synthesis across image modalities or domains is disclosed, which synthesizes a target medical image based on a source medical image. A plurality of image patches are cropped from the source medical image. A synthesized target medical image is then generated from the source medical image by jointly performing sparse coding between each image patch of the source medical image and a corresponding image patch of the synthesized target image based on jointly trained source and target dictionaries.
    Type: Application
    Filed: April 27, 2015
    Publication date: October 27, 2016
    Inventors: Hien Nguyen, Shaohua Kevin Zhou
  • Publication number: 20160210749
    Abstract: A method and apparatus for cross-domain medical image synthesis is disclosed. A source domain medical image is received. A synthesized target domain medical image is generated using a trained contextual deep network (CtDN) to predict intensities of voxels of the target domain medical image based on intensities and contextual information of voxels in the source domain medical image. The contextual deep network is a multi-layer network in which hidden nodes of at least one layer of the contextual deep network are modeled as products of intensity responses and contextual response.
    Type: Application
    Filed: January 21, 2016
    Publication date: July 21, 2016
    Inventors: Hien Nguyen, Shaohua Kevin Zhou
  • Publication number: 20160181032
    Abstract: A sealable settings dial assembly includes a casing for electrical equipment, such as an overload relay, and a rotatable dial. The casing includes a wire slot through which to extend a wire of a wire lock mechanism. The rotatable dial is movable relative to the casing, and is used to select a setting from a plurality of different settings for the electrical equipment. The dial includes spaced apart setting channels, such as setting holes or grooves, associated with the different settings to be selected. On the dial, each setting has an associated setting channel which aligns with the wire slot of the casing when the particular setting is selected on the dial. In that way, the wire can be extended through the wire slot and the setting channel for the selected setting to lock the dial at the selected setting.
    Type: Application
    Filed: December 17, 2014
    Publication date: June 23, 2016
    Inventors: Conrad S. WEIDEN, Hien NGUYEN, Kevin M. JEFFERIES
  • Publication number: 20160133037
    Abstract: A method and apparatus for unsupervised cross-modal medical image synthesis is disclosed, which synthesizes a target modality medical image based on a source modality medical image without the need for paired source and target modality training data. A source modality medical image is received. Multiple candidate target modality intensity values are generated for each of a plurality of voxels of a target modality medical image based on corresponding voxels in the source modality medical image. A synthesized target modality medical image is generated by selecting, jointly for all of the plurality of voxels in the target modality medical image, intensity values from the multiple candidate target modality intensity values generated for each of the plurality of voxels. The synthesized target modality medical image can be refined using coupled sparse representation.
    Type: Application
    Filed: September 30, 2015
    Publication date: May 12, 2016
    Inventors: Raviteja Vemulapalli, Hien Nguyen, Shaohua Kevin Zhou
  • Patent number: 9333661
    Abstract: An apparatus for slicing fruits, vegetables and other food items into slices of varying thickness is designed to work in combination with the user's own kitchen knives rather than having a preinstalled fixed blade of limited operable life span. The apparatus includes means for properly orienting and securing knife blades of a variety of shapes and sizes within the apparatus as well as safety features to prevent accidental injury.
    Type: Grant
    Filed: June 6, 2015
    Date of Patent: May 10, 2016
    Inventor: Hien Nguyen
  • Publication number: 20160106321
    Abstract: A method and system for determining fractional flow reserve (FFR) for a coronary artery stenosis of a patient is disclosed. In one embodiment, medical image data of the patient including the stenosis is received, a set of features for the stenosis is extracted from the medical image data of the patient, and an FFR value for the stenosis is determined based on the extracted set of features using a trained machine-learning based mapping. In another embodiment, a medical image of the patient including the stenosis of interest is received, image patches corresponding to the stenosis of interest and a coronary tree of the patient are detected, an FFR value for the stenosis of interest is determined using a trained deep neural network regressor applied directly to the detected image patches.
    Type: Application
    Filed: April 13, 2015
    Publication date: April 21, 2016
    Inventors: Puneet Sharma, Ali Kamen, Bogdan Georgescu, Frank Sauer, Dorin Comaniciu, Yefeng Zheng, Hien Nguyen, Vivek Kumar Singh
  • Publication number: 20160048741
    Abstract: Object detection uses a deep or multiple layer network to learn features for detecting the object in the image. Multiple features from different layers are aggregated to train a classifier for the object. In addition or as an alternative to feature aggregation from different layers, an initial layer may have separate learnt nodes for different regions of the image to reduce the number of free parameters. The object detection is learned or a learned object detector is applied.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 18, 2016
    Inventors: Hien Nguyen, Vivek Kumar Singh, Yefeng Zheng, Bogdan Georgescu, Dorin Comaniciu, Shaohua Kevin Zhou
  • Publication number: 20150238148
    Abstract: A method and system for anatomical object detection using marginal space deep neural networks is disclosed. The pose parameter space for an anatomical object is divided into a series of marginal search spaces with increasing dimensionality. A respective deep neural network is trained for each of the marginal search spaces, resulting in a series of trained deep neural networks. Each of the trained deep neural networks can evaluate hypotheses in a current parameter space using discriminative classification or a regression function. An anatomical object is detected in a medical image by sequentially applying the series of trained deep neural networks to the medical image.
    Type: Application
    Filed: May 12, 2015
    Publication date: August 27, 2015
    Inventors: Bogdan Georgescu, Yefeng Zheng, Hien Nguyen, Vivek Kumar Singh, Dorin Comaniciu, David Liu
  • Publication number: 20150112182
    Abstract: A method and system for determining fractional flow reserve (FFR) for a coronary artery stenosis of a patient is disclosed. In one embodiment, medical image data of the patient including the stenosis is received, a set of features for the stenosis is extracted from the medical image data of the patient, and an FFR value for the stenosis is determined based on the extracted set of features using a trained machine-learning based mapping. In another embodiment, a medical image of the patient including the stenosis of interest is received, image patches corresponding to the stenosis of interest and a coronary tree of the patient are detected, an FFR value for the stenosis of interest is determined using a trained deep neural network regressor applied directly to the detected image patches.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 23, 2015
    Inventors: Puneet Sharma, Ali Kamen, Bogdan Georgescu, Frank Sauer, Dorin Comaniciu, Yefeng Zheng, Hien Nguyen, Vivek Kumar Singh
  • Publication number: 20150057501
    Abstract: A tissue retractor device is provided. The tissue retractor device includes a handle attached to an inflatable rake-shaped tissue retractor head.
    Type: Application
    Filed: March 21, 2013
    Publication date: February 26, 2015
    Applicant: LapSpace Medical Ltd.
    Inventors: Assaf Livne, Gilad Lavi, Hien Nguyen
  • Patent number: D722056
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: February 3, 2015
    Assignee: Mophie, Inc.
    Inventors: Hien Nguyen, William Benjamin Hasbrook, Sean Michael Stuck, Denny Tsai
  • Patent number: D723530
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: March 3, 2015
    Assignee: Mophie, Inc.
    Inventors: Andrew Namminga, Hien Nguyen
  • Patent number: D726175
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: April 7, 2015
    Assignee: Mophie, Inc.
    Inventors: Denny Tsai, Hien Nguyen, Helen Qin, Ken Ma