Patents by Inventor Ja-Hoo Koo

Ja-Hoo Koo 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: 11341754
    Abstract: Provided are a calibration method and a calibration apparatus for steering assist or autonomous driving of a vehicle in which lines on a road are detected from an image and coordinates of the lines in an image domain are transformed into coordinates in a world domain to update homography matrix that represents a transformation relationship between the image domain and the world domain, and controlling the vehicle traveling on the road based on the lines.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: May 24, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-ju Lee, Ja-hoo Koo, Se-ho Shin, Dong-wook Lee
  • Patent number: 11200432
    Abstract: Provided are a method and apparatus for determining driving information. The apparatus generates a probability map corresponding to a target object to be detected from a driving image, extracts representative points from a candidate region of the target object detected from the driving image, extracts some of the representative points based on the probability map, calculates a confidence value for the candidate region of the target object based on the extracted some representative points, and determines driving information of the vehicle based on the confidence value.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: December 14, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoon-Suk Hyun, Cheol-Hun Jang, Ja-hoo Koo, Dae-Hyun Ji
  • Patent number: 11138750
    Abstract: A distance estimating method and apparatus are provided. The method includes acquiring a real target length corresponding to target points of an object, calculating, from an input image, an image target length corresponding to the real target length, and estimating a distance from a distance estimating apparatus to the object, based on the real target length, the image target length, and a focal length thereof.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: October 5, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-woo Lee, Ja-hoo Koo, Won-ju Lee, Yoon-suk Hyun
  • Patent number: 11062153
    Abstract: Provided are an apparatus and a method for converting an image. The apparatus includes an image sensor configured to obtain an image of a road, and a processor. The processor is configured to segment an input image into a plurality of region images, determine a vanishing point corresponding to each of the plurality of region images, obtain a translation relation for converting two-dimensional (2D) coordinates of a point in a region image among the plurality of region images into three-dimensional (3D) coordinates, based on a vanishing point of the region image, and generate road profile data based on translation relations of the plurality of region images.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: July 13, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-woo Lee, Yoon-suk Hyun, Ja-hoo Koo, Cheol-hun Jang, Dae-hyun Ji
  • Publication number: 20200125862
    Abstract: Provided are a calibration method and a calibration apparatus for steering assist or autonomous driving of a vehicle in which lines on a road are detected from an image and coordinates of the lines in an image domain are transformed into coordinates in a world domain to update homography matrix that represents a transformation relationship between the image domain and the world domain, and controlling the vehicle traveling on the road based on the lines.
    Type: Application
    Filed: October 22, 2019
    Publication date: April 23, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-ju LEE, Ja-hoo KOO, Se-ho SHIN, Dong-wook LEE
  • Publication number: 20200125860
    Abstract: Provided are a method and apparatus for determining driving information. The apparatus generates a probability map corresponding to a target object to be detected from a driving image, extracts representative points from a candidate region of the target object detected from the driving image, extracts some of the representative points based on the probability map, calculates a confidence value for the candidate region of the target object based on the extracted some representative points, and determines driving information of the vehicle based on the confidence value.
    Type: Application
    Filed: July 11, 2019
    Publication date: April 23, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoon-suk HYUN, Cheol-hun JANG, Ja-hoo KOO, Dae-hyun JI
  • Publication number: 20200118283
    Abstract: A distance estimating method and apparatus are provided.
    Type: Application
    Filed: October 2, 2019
    Publication date: April 16, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-woo LEE, Ja-hoo KOO, Won-ju LEE, Yoon-suk HYUN
  • Publication number: 20200117920
    Abstract: Provided are an apparatus and a method for converting an image. The apparatus includes an image sensor configured to obtain an image of a road, and a processor. The processor is configured to segment an input image into a plurality of region images, determine a vanishing point corresponding to each of the plurality of region images, obtain a translation relation for converting two-dimensional (2D) coordinates of a point in a region image among the plurality of region images into three-dimensional (3D) coordinates, based on a vanishing point of the region image, and generate road profile data based on translation relations of the plurality of region images.
    Type: Application
    Filed: August 5, 2019
    Publication date: April 16, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-woo LEE, Yoon-suk Hyun, Ja-hoo Koo, Cheol-hun Jang, Dae-Hyun Ji
  • Publication number: 20090140198
    Abstract: Disclosed herein is a method of preparing a metal oxide suspension, which is advantageous due to the prevention of hydration and agglomeration of the metal oxide and a simple preparation process. The method of preparing a metal oxide suspension according to this invention includes preparing metal oxide, mixing the metal oxide with a solvent and a surface treating agent to obtain a mixture, and wet milling the mixture such that the metal oxide of the mixture has a nanoscale particle size and the metal oxide is uniformly dispersed in the mixture.
    Type: Application
    Filed: April 18, 2006
    Publication date: June 4, 2009
    Applicants: SAMSUNG CORNING CO., LTD., SAMSUNG CORNING PRECISION GLASS CO., LTD.
    Inventors: Yoon-Gyu Lee, Jin-Ho Lee, Myung-Geun Song, Sin-Ae Song, Ja-Hoo Koo