Patents by Inventor Dong Geun Yoo

Dong Geun Yoo 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: 10643107
    Abstract: The present disclosure provides a method for training a neural network that extracts a feature of an image by using data related to a difference between image, and an apparatus using the same. A neural network training method performed by a computing device according to an exemplary embodiment of the present disclosure includes: acquiring a reference image photographed with a first setting with respect to an object and a first comparison image photographed with a second setting with respect to the object; acquiring feature data of the reference image from a first neural network trained by using the reference image; acquiring feature data of a first extract image from a second neural network, wherein the second neural network is trained by using the first extract image formed from data related to a difference between the reference image and the first comparison image; and training a third neural network by using the feature data of the reference image and the feature data of the first extracted image.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: May 5, 2020
    Assignee: LUNIT INC.
    Inventors: Dong Geun Yoo, Hyun Jae Lee
  • Patent number: 10013757
    Abstract: The present invention relates to a classification apparatus for pathologic diagnosis of a medical image and a pathologic diagnosis system using the same. According to the present invention, there is provided a classification apparatus for pathologic diagnosis of a medical image, including: a feature extraction unit configured to extract feature data for an input image using a feature extraction variable; a feature vector transformation unit configured to transform the extracted feature data into a feature vector using a vector transform variable; and a vector classification unit configured to classify the feature vector using a classification variable, and to output the results of the classification of pathologic diagnosis for the input image; wherein the feature extraction unit, the feature vector transformation unit and the vector classification unit are trained based on a first tagged image, a second tagged image, and an image having no tag information.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: July 3, 2018
    Assignee: LUNIT INC.
    Inventors: Hyo-eun Kim, Sang-heum Hwang, Seung-wook Paek, Jung-in Lee, Min-hong Jang, Dong-geun Yoo, Kyung-hyun Paeng, Sung-gyun Park
  • Publication number: 20170236271
    Abstract: The present invention relates to a classification apparatus for pathologic diagnosis of a medical image and a pathologic diagnosis system using the same. According to the present invention, there is provided a classification apparatus for pathologic diagnosis of a medical image, including: a feature extraction unit configured to extract feature data for an input image using a feature extraction variable; a feature vector transformation unit configured to transform the extracted feature data into a feature vector using a vector transform variable; and a vector classification unit configured to classify the feature vector using a classification variable, and to output the results of the classification of pathologic diagnosis for the input image; wherein the feature extraction unit, the feature vector transformation unit and the vector classification unit are trained based on a first tagged image, a second tagged image, and an image having no tag information.
    Type: Application
    Filed: September 8, 2015
    Publication date: August 17, 2017
    Applicant: LUNIT INC.
    Inventors: Hyo-eun KIM, Sang-heum HWANG, Seung-wook PAEK, Jung-in LEE, Min-hong JANG, Dong-geun Yoo, Kyung-hyun PAENG, Sung-gyun PARK
  • Publication number: 20170061608
    Abstract: The present invention relates to a cloud-based pathological analysis system and method. The present invention provides a cloud-based pathological analysis system, including: a client device coupled to a microscope, and configured to acquire an image for a tissue sample via the microscope and generate a sample image; and a cloud server coupled to the client device over a network, and configured to receive sample image data from the client device over the network and store the sample image data; wherein the cloud server analyzes the received sample image data, and transmits analysis information to the client device.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 2, 2017
    Applicant: Lunit Inc.
    Inventors: Hyo-eun KIM, Sang-heum HWANG, Seung-wook PAEK, Jung-in LEE, Min-hong JANG, Dong-geun YOO, Kyung-hyun PAENG, Sung-gyun PARK
  • Publication number: 20150026013
    Abstract: A visual product searching apparatus includes a product area determining part, a visual word generating part and a product searching part. The product area determining part extracts a product area in an input image. The visual word generating part generates a visual word reflecting human visual cognitive characteristics based on the product area. The product searching part searches a product using the visual word.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 22, 2015
    Inventors: Seung-Wook PAEK, Jung-In LEE, Dong-Geun YOO, Kyung-Hyun PAENG, Sung-Gyun PARK, Min-Hong JANG
  • Patent number: 8565593
    Abstract: Provided is a photographing apparatus for investigating a state of an outcrop. The photographing apparatus according to the present invention includes: a photographing unit photographing moving pictures or pictures; and a plurality of laser pointers outputting laser beams toward the outcrops photographed by the photographing unit to form laser points on the outcrops, wherein each laser point is disposed so that the laser beams output therefrom are output in parallel with laser beams output from other laser pointers.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: October 22, 2013
    Assignee: Korea Institute of Geoscience and Mineral Resources
    Inventors: Jong Hwa Chun, Hag Ju Kim, Dong Geun Yoo, Byong Jae Ryu
  • Publication number: 20130188944
    Abstract: Provided is a photographing apparatus for investigating a state of an outcrop. The photographing apparatus according to the present invention includes: a photographing unit photographing moving pictures or pictures; and a plurality of laser pointers outputting laser beams toward the outcrops photographed by the photographing unit to form laser points on the outcrops, wherein each laser point is disposed so that the laser beams output therefrom are output in parallel with laser beams output from other laser pointers.
    Type: Application
    Filed: April 18, 2012
    Publication date: July 25, 2013
    Applicant: Korea Institute of Geoscience and Mineral Resources
    Inventors: Jong Hwa Chun, Hag Ju Kim, Dong Geun Yoo, Byong Jae Ryu
  • Patent number: 8107323
    Abstract: Provided is a boomer that is a type of a seismic source generator for marine seismic survey. In the boomer for marine seismic survey according to the exemplary embodiment of the present invention, a plurality of transducer coupling parts capable of separating and coupling a transducer are disposed on a bottom of a board floating on a surface of water, the transducer coupling parts are disposed along a straight line L forming left and right center of gravity of the board, and a transducer coupling member for mounting a transducer is provided. Further, the support is mounted on the bottom of the board, the transducer coupling part is disposed on the support, and the support is formed to control a distance from a bottom point of the board to the transducer coupling part.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: January 31, 2012
    Assignee: Korea Institute of Geoscience and Mineral Resources (Kigam)
    Inventors: Young Jun Kim, Sung Ryul Shin, Jong Hwa Chun, Dong Geun Yoo