Patents by Inventor Hyong Euk Lee

Hyong Euk Lee 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).

  • Method and apparatus for rendering target fluid
    Patent number: 10002432
    Abstract: Provided is a method and apparatus for rendering a target fluid that include defining level-set information of fluid particles configuring a modeled target fluid. The level-set information comprises a shortest distance from a surface of the target fluid to the fluid particles. The method and apparatus are include discarding internal particles of the target fluid from the modeled target fluid based on the level-set information of the fluid particles, and calculating thickness information of the target fluid, from which the internal particles are discarded, based on depth information on the fluid particles. The target fluid is rendered based on the thickness information of the target fluid.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: June 19, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hwiryong Jung, Nahyup Kang, Jiyeon Kim, Donghoon Sagong, Hyong Euk Lee
  • Image processing apparatus and method
    Patent number: 9990762
    Abstract: An image processing apparatus includes a calculator configured to calculate a first difference value between frames in terms of either one or both of a position and a direction of a direct light by comparing a current frame to at least one previous frame, and a determiner configured to determine that an indirect light of the current frame is to be sampled in response to the first difference value being greater than or equal to a threshold.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: June 5, 2018
    Assignee: Samsung Electronic Co., Ltd.
    Inventors: Minsu Ahn, Seungin Park, Inwoo Ha, Hyong Euk Lee
  • IMAGE PROCESSING APPARATUS AND METHOD
    Publication number: 20180122090
    Abstract: An image processing apparatus includes a first processor configured to obtain, from a color image, an illumination element image and an albedo element image corresponding to the color image, and a second processor configured to divide the illumination element image into a plurality of subelement images each corresponding to the color image.
    Type: Application
    Filed: April 21, 2017
    Publication date: May 3, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Inwoo HA, Hyong Euk LEE, Young Hun SUNG, Minsu AHN
  • Object modeling method and apparatus
    Patent number: 9953109
    Abstract: Provided is a method and apparatus for modeling objects that may include detecting an adjacent area that shares modeled particles of a first object and modeled particles of a second object, calculating an action force between the first object and the second object in the adjacent area based on information stored for grid points of a grid defined with respect to the adjacent area, and modelling the first object and the second object based on the calculated action force.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: April 24, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nahyup Kang, Jiyeon Kim, Hyong-euk Lee, Hwiryong Jung
  • IMAGE PROCESSING APPARATUS AND METHOD
    Publication number: 20180108142
    Abstract: An image processing apparatus includes a processor configured to calculate a curvature value of a first point in stereo images based on a disparity value corresponding to the first point, and refine the disparity value based on the curvature value.
    Type: Application
    Filed: August 15, 2017
    Publication date: April 19, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Minsu AHN, Jiyeon KIM, Hyong Euk LEE, Young Hun SUNG
  • Method and apparatus for determining blood flow required, method and apparatus for producing blood flow image, and method and apparatus for processing myocardial perfusion image
    Patent number: 9924869
    Abstract: A method of determining a required blood flow includes obtaining morphological information of a coronary artery in a cardiac image, segmenting the cardiac image into at least one myocardial region based on the morphological information of the coronary artery, and determining a blood flow required for each of the at least one myocardial region.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: March 27, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung Hwan Kim, Hyong Euk Lee, Na Hyup Kang, Sang Wook Kim, Ji Yeon Kim
  • Apparatus and method for adjusting brightness of image
    Patent number: 9922452
    Abstract: A method of adjusting a brightness of an image includes matching an object model to an object based on one or more feature points of the object extracted from an input image including the object; mapping a surface normal map in a two-dimensional (2D) image form to the input image based on the matched object model; and generating shadow information for the input image based on the mapped surface normal map and a virtual light source.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: March 20, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Minjung Son, Heesae Lee, Donghoon Sagong, KeeChang Lee, Hyong Euk Lee
  • Image processing apparatus and method
    Patent number: 9922444
    Abstract: An image processing apparatus includes a memory configured to store a data structure in which gather rays generated by performing gather ray tracing from a rendering viewpoint are clustered hierarchically, the gather rays including a first gather ray and a second gather ray associated with the first gather ray in the data structure, and a processor configured to merge a photon gathering result associated with the second gather ray with a photon gathering result associated with the first gather ray in response to the photon gathering result associated with the first gather ray not satisfying a first condition.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: March 20, 2018
    Assignees: Samsung Electronics Co., Ltd., Aarhus Universitet
    Inventors: Inwoo Ha, Minsu Ahn, Hyong Euk Lee, Jacob Toft Pedersen, Hachisuka Toshiya
  • Apparatus and method for estimating camera pose
    Patent number: 9916689
    Abstract: An apparatus for estimating a camera pose includes an image acquisition unit to acquire a photographed image, a motion sensor to acquire motion information of the apparatus for estimating the camera pose, a static area detector to detect a static area of the photographed image based on the photographed image and the motion information, and a pose estimator to estimate a camera pose based on the detected static area.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: March 13, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seon Min Rhee, Seung In Park, Yong Beom Lee, Hyong Euk Lee
  • Camera pose estimation apparatus and method
    Patent number: 9875545
    Abstract: Provided is a camera pose estimation apparatus that estimates an initial camera pose using one of an input depth image and an input color image, and refines the initial camera pose using the other image. When the initial camera pose is estimated using the input depth image, the radius of a first area, in which color information is matched for refinement, can be adaptively set according to the distribution of the depth value of at least one first point that is subject to matching.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: January 23, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seon Min Rhee, Hyong Euk Lee, Yong Beom Lee
  • Apparatus and method for generation of a light transport map with transparency information
    Patent number: 9761044
    Abstract: A generator of an image processing apparatus may generate a light transport map (LTM) by sampling depth information from a light to an object based on a transparency of the object, wherein the LTM may be used to compute a visibility of the light with respect to a first point to be rendered.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: September 12, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In Woo Ha, Min Su Ahn, Hyong Euk Lee
  • Method and apparatus for estimating 3D position and orientation through sensor fusion
    Patent number: 9759804
    Abstract: An apparatus and method for estimating a three-dimensional (3D) position and orientation based on a sensor fusion process is provided. The method of estimating the 3D position and orientation may include estimating a strength-based position and a strength-based orientation of a remote apparatus when a plurality of strength information is received, based on an attenuation characteristic of a strength that varies based on a distance and orientation, estimating an inertia-based position and an inertia-based orientation of the remote apparatus by receiving a plurality of inertial information, and estimating a fused position based on a weighted-sum of the strength-based position and the inertia-based position, and to estimate a fused orientation based on a weighted-sum of the strength-based orientation and the inertia-based orientation.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: September 12, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyong Euk Lee, Sang Hyun Kim, Won Chul Bang, Chang Kyu Choi
  • Image processing apparatus and method using virtual point light (VPL) information
    Patent number: 9715758
    Abstract: A sampler of an image processing apparatus may sample at least one first virtual point light (VPL) from a direct light view. The sampler may sample a second VPL in a three-dimensional (3D) space independent of the direct light view. A calculator may calculate a luminance of the second VPL using a first VPL adjacent to the second VPL selected from among the at least one first VPL.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: July 25, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min Su Ahn, In Woo Ha, Hyong Euk Lee
  • 3D RENDERING METHOD AND APPARATUS
    Publication number: 20170193690
    Abstract: A three-dimensional (3D) rendering method and apparatus to render a 3D scene is disclosed. The 3D rendering apparatus determines color values of vertices shaded by a direct virtual light source, establishes one or more locations of one or more indirect virtual light sources in polygonal areas formed by the vertices based on the determined color values of the vertices, and renders a 3D scene based on the one or more indirect virtual light sources disposed at the determined one or more locations.
    Type: Application
    Filed: November 30, 2016
    Publication date: July 6, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Inwoo HA, Minsu AHN, Hyong Euk LEE
  • METHOD AND APPARATUS FOR MODELING MOVEMENT OF TARGET OBJECT BY INTERACTION WITH FLUID
    Publication number: 20170177759
    Abstract: Provided is a method and apparatus for modeling a movement of an object that generates a velocity field in a fluid based on a flow of the fluid, selects a vortex model corresponding to the object in the fluid, updates the velocity field based on a velocity variance of the velocity field obtained using the vortex model, and models a movement of the object based on the updated velocity field.
    Type: Application
    Filed: October 6, 2016
    Publication date: June 22, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jiyeon KIM, Nahyup KANG, Donghoon SAGONG, Hyong Euk LEE, Hwiryong JUNG
  • METHOD AND APPARATUS FOR MODELING SMOKE TURBULENCE BASED ON PATCH
    Publication number: 20170178344
    Abstract: A method and apparatus for modeling smoke turbulence is disclosed. The method of modeling smoke turbulence includes detecting a turbulent area comprising smoke turbulence in a low-resolution image, and searching for a high-resolution patch matching the turbulent area in a memory that comprises high-resolution patches representing smoke turbulence extracted from high-resolution images. The method also models the smoke turbulence by synthesizing the retrieved patch to the low-resolution image.
    Type: Application
    Filed: June 24, 2016
    Publication date: June 22, 2017
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Technische Universität München
    Inventors: Nahyup KANG, Mengyu CHU, Nils THUEREY, Hyong Euk LEE, Donghoon SAGONG
  • Image processing apparatus and method using photon mapping and ray tracing and increasing a rate of photon mapping
    Patent number: 9684991
    Abstract: Provided is an image processing apparatus for performing photon mapping, and the image processing apparatus may perform ray tracing for photon mapping, sample a ray space based on a result of the ray tracing, and perform pseudo photon mapping using the sampled ray space.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: June 20, 2017
    Assignees: Samsung Electronics Co., Ltd., Aarhus Universitet
    Inventors: In Woo Ha, Yong Beom Lee, Jacob Toft Pedersen, Toshiya Hachisuka, Do Kyoon Kim, Min Su Ahn, Hyong Euk Lee
  • METHOD AND APPARATUS FOR MODELING MOVEMENT OF AIR BUBBLE BASED ON FLUID PARTICLES
    Publication number: 20170161413
    Abstract: A fluid particle modeling method includes determining bubble cells based on locations of fluid particles, defining a bubble based on the bubble cells, calculating a pressure of the bubble based on a change in a volume of the bubble, and updating the locations of the fluid particles based on the pressure of the bubble.
    Type: Application
    Filed: November 18, 2016
    Publication date: June 8, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Donghoon SAGONG, Nahyup KANG, Jiyeon KIM, Hyong Euk LEE, Hwiryong JUNG
  • 3D GRAPHIC RENDERING METHOD AND APPARATUS
    Publication number: 20170132830
    Abstract: A three-dimensional (3D) rendering method and apparatus is disclosed. The 3D rendering apparatus may determine a select shading point in a 3D scene on which shading is to be performed, perform the shading on the determined shading point, and determine shading information of the 3D scene based on a result of the shading performed on the determined shading point.
    Type: Application
    Filed: November 4, 2016
    Publication date: May 11, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Inwoo HA, Minsu AHN, Hyong Euk LEE, Minjung SON
  • METHOD AND APPARATUS FOR RENDERING TARGET FLUID
    Publication number: 20170124431
    Abstract: Provided is a method and apparatus for rendering a target fluid that include defining level-set information of fluid particles configuring a modeled target fluid. The level-set information comprises a shortest distance from a surface of the target fluid to the fluid particles. The method and apparatus are include discarding internal particles of the target fluid from the modeled target fluid based on the level-set information of the fluid particles, and calculating thickness information of the target fluid, from which the internal particles are discarded, based on depth information on the fluid particles. The target fluid is rendered based on the thickness information of the target fluid.
    Type: Application
    Filed: August 25, 2016
    Publication date: May 4, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Hwiryong JUNG, Nahyup KANG, Jiyeon KIM, Donghoon SAGONG, Hyong Euk LEE