Patents by Inventor Nam-Ik Cho

Nam-Ik Cho 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: 20220375039
    Abstract: An image processing device includes an encoder which infers latent variables from an input noisy image based on a preset noise. A denoiser removes the noise from the input noisy image to generate a denoising image. A decoder reconstructs a noisy image, using the inferred latent variable. The latent variables are learned on the basis of a difference between the reconstructed noisy image and the input noisy image.
    Type: Application
    Filed: May 10, 2022
    Publication date: November 24, 2022
    Applicant: Seoul National University R&DB Foundation
    Inventors: JAE WOONG SOH, YEONG IL JANG, NAM IK CHO
  • Patent number: 11490008
    Abstract: Disclosed is a method for photographing a panoramic image including the steps of recognizing movement of a corresponding photographing apparatus by comparing a current real-time input image with a previous image through a motion estimation mechanism with exposure compensation, determining a time to photograph each next picture by determining whether movement in a photography direction reaches a preset threshold value, and photographing each next picture by manual or automatic operation at the determined time.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: November 1, 2022
    Assignees: Samsung Electronics Co., Ltd., Seoul National University Industry Foundation
    Inventors: Sung-Dae Cho, Soo-Kyun Kim, Jae-Won Moon, Yun-Je Oh, Hee-Won Jung, Sang-Hwa Lee, Nam-Ik Cho, Seong-Jong Ha
  • Publication number: 20220343462
    Abstract: A device for generating a high-resolution frame includes a plurality of alignment circuits configured to generate a plurality of aligned frames by blending a reference frame and a plurality of neighboring frames neighboring the reference frame; and a reconstruction circuit configured to generate the high-resolution frame corresponding to the reference frame according to the reference frame and the plurality of aligned frames. The plurality of alignment circuits and the reconstruction circuit each include neural networks.
    Type: Application
    Filed: August 13, 2021
    Publication date: October 27, 2022
    Inventors: Haesoo CHUNG, Sang-hoon LEE, Nam Ik CHO
  • Patent number: 11216974
    Abstract: The disclosure relates to a method of determining a gaze distance, the method including obtaining a plurality of images by capturing each of both eyes of a user, determining, from each of the plurality of images, a corner point located at an edge of the eye, a location of a pupil, and an eye contour, determining each of gaze directions of both of the eyes based on a difference between a reference point and the location of the pupil, wherein the reference point is determined based on the eye contour and a location of the corner point, and determining a gaze distance based on a difference between the gaze directions of both of the eyes.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: January 4, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Chi-yul Yoon, Sang Yoon Han, Sang Hwa Lee, Yeongil Jang, Nam Ik Cho
  • Patent number: 11153575
    Abstract: An electronic apparatus is provided. The electronic apparatus includes a storage configured to store a compression rate network model configured to determine a compression rate applied to an image block from among a plurality of compression rates, and a plurality of compression noise removing network models configured to remove compression noise for each of the plurality of compression rates, and a processor configured to: obtain a compression rate of each of a plurality of image blocks included in a frame of a decoded moving picture based on the compression rate network model, obtain the compression rate of the frame based on the plurality of obtained compression rates, and remove compression noise of the frame based on a compression noise removing network model corresponding to the compression rate of the frame from among the plurality of compression noise removing network models.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: October 19, 2021
    Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Hyunseung Lee, Donghyun Kim, Youngsu Moon, Taegyoung Ahn, Yoonsik Kim, Jaewoo Park, Jae Woong Soh, Nam Ik Cho, Byeongyong Ahn
  • Publication number: 20210319542
    Abstract: Disclosed is an image processing apparatus and method for generating one HDR image by using a plurality of LDR images photographed at different exposure values. The image processing apparatus may include a deep learning framework configured to receive a plurality of low dynamic range (LDR) images captured at different exposures, generate kernels for alignment by using the plurality of LDR images, generate aligned images by applying the kernels to the plurality of LDR images, and generate a high dynamic range (HDR) image by synthesizing the aligned images.
    Type: Application
    Filed: December 16, 2020
    Publication date: October 14, 2021
    Inventors: Nam Ik Cho, Sang Hoon Lee, Hae Soo Chung
  • Publication number: 20200372677
    Abstract: The disclosure relates to a method of determining a gaze distance, the method including obtaining a plurality of images by capturing each of both eyes of a user, determining, from each of the plurality of images, a corner point located at an edge of the eye, a location of a pupil, and an eye contour, determining each of gaze directions of both of the eyes based on a difference between a reference point and the location of the pupil, wherein the reference point is determined based on the eye contour and a location of the corner point, and determining a gaze distance based on a difference between the gaze directions of both of the eyes.
    Type: Application
    Filed: December 14, 2017
    Publication date: November 26, 2020
    Applicants: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chi-yul YOON, Sang Yoon HAN, Sang Hwa LEE, Yeongil JANG, Nam Ik CHO
  • Publication number: 20200329197
    Abstract: Disclosed is a method for photographing a panoramic image including the steps of recognizing movement of a corresponding photographing apparatus by comparing a current real-time input image with a previous image through a motion estimation mechanism with exposure compensation, determining a time to photograph each next picture by determining whether movement in a photography direction reaches a preset threshold value, and photographing each next picture by manual or automatic operation at the determined time.
    Type: Application
    Filed: June 29, 2020
    Publication date: October 15, 2020
    Inventors: Sung-Dae CHO, Soo-Kyun KIM, Jae-Won MOON, Yun-Je OH, Hee-Won JUNG, Sang-Hwa LEE, Nam-Ik CHO, Seong-Jong HA
  • Patent number: 10701264
    Abstract: Disclosed is a method for photographing a panoramic image including the steps of recognizing movement of a corresponding photographing apparatus by comparing a current real-time input image with a previous image through a motion estimation mechanism with exposure compensation, determining a time to photograph each next picture by determining whether movement in a photography direction reaches a preset threshold value, and photographing each next picture by manual or automatic operation at the determined time.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: June 30, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Dae Cho, Soo-Kyun Kim, Jae-Won Moon, Yun-Je Oh, Hee-Won Jung, Sang-Hwa Lee, Nam-Ik Cho, Seong-Jong Ha
  • Publication number: 20190281310
    Abstract: An electronic apparatus is provided. The electronic apparatus includes a storage configured to store a compression rate network model configured to determine a compression rate applied to an image block from among a plurality of compression rates, and a plurality of compression noise removing network models configured to remove compression noise for each of the plurality of compression rates, and a processor configured to: obtain a compression rate of each of a plurality of image blocks included in a frame of a decoded moving picture based on the compression rate network model, obtain the compression rate of the frame based on the plurality of obtained compression rates, and remove compression noise of the frame based on a compression noise removing network model corresponding to the compression rate of the frame from among the plurality of compression noise removing network models.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 12, 2019
    Inventors: Hyunseung LEE, Donghyun KIM, Youngsu MOON, Taegyoung AHN, Yoonsik KIM, Jaewoo PARK, Jae Woong SOH, Nam Ik CHO, Byeongyong AHN
  • Publication number: 20190141240
    Abstract: Disclosed is a method for photographing a panoramic image including the steps of recognizing movement of a corresponding photographing apparatus by comparing a current real-time input image with a previous image through a motion estimation mechanism with exposure compensation, determining a time to photograph each next picture by determining whether movement in a photography direction reaches a preset threshold value, and photographing each next picture by manual or automatic operation at the determined time.
    Type: Application
    Filed: January 7, 2019
    Publication date: May 9, 2019
    Inventors: Sung-Dae CHO, Soo-Kyun KIM, Jae-Won MOON, Yun-Je OH, Hee-Won JUNG, Sang-Hwa LEE, Nam-Ik CHO, Seong-Jong HA
  • Patent number: 10178308
    Abstract: Disclosed is a method for photographing a panoramic image including the steps of recognizing movement of a corresponding photographing apparatus by comparing a current real-time input image with a previous image through a motion estimation mechanism with exposure compensation, determining a time to photograph each next picture by determining whether movement in a photography direction reaches a preset threshold value, and photographing each next picture by manual or automatic operation at the determined time.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: January 8, 2019
    Assignees: Samsung Electronics Co., Ltd., Seoul National University Industry Foundation
    Inventors: Sung-Dae Cho, Soo-Kyun Kim, Jae-Won Moon, Yun-Je Oh, Hee-Won Jung, Sang-Hwa Lee, Nam-Ik Cho, Seong-Jong Ha
  • Patent number: 9661183
    Abstract: The present disclosure relates an image correction apparatus and method. The image correction apparatus includes a printing unit for printing an image; a scratch detecting unit which detects a scratch region from a scan image scanned per line; and a restoration processing unit which performs the restoration of the scratch region by interpolation if the width of the scratch region detected by the scratch detecting unit is less than a predetermined value and, if the width thereof is not less than the predetermined value, does not perform a restoration of the scratch region but provides the printing unit with the scan image, thereby correcting an image distortion by easily detecting an image distortion due to foreign matter.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: May 23, 2017
    Assignee: SINDOH CO., LTD.
    Inventors: Nam Ik Cho, Byoung Bag Lee, Cheol Ho Ohk
  • Publication number: 20170048456
    Abstract: Disclosed is a method for photographing a panoramic image including the steps of recognizing movement of a corresponding photographing apparatus by comparing a current real-time input image with a previous image through a motion estimation mechanism with exposure compensation, determining a time to photograph each next picture by determining whether movement in a photography direction reaches a preset threshold value, and photographing each next picture by manual or automatic operation at the determined time.
    Type: Application
    Filed: October 31, 2016
    Publication date: February 16, 2017
    Inventors: Sung-Dae CHO, Soo-Kyun KIM, Jae-Won MOON, Yun-Je OH, Hee-Won JUNG, Sang-Hwa LEE, Nam-Ik CHO, Seong-Jong HA
  • Patent number: 9482939
    Abstract: Disclosed is a method for photographing a panoramic image including the steps of recognizing movement of a corresponding photographing apparatus by comparing a current real-time input image with a previous image through a motion estimation mechanism with exposure compensation, determining a time to photograph each next picture by determining whether movement in a photography direction reaches a preset threshold value, and photographing each next picture by manual or automatic operation at the determined time.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: November 1, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Won Moon, Soo-Kyun Kim, Sung-Dae Cho, Yun-Je Oh, Hee-Won Jung, Nam-Ik Cho, Sang-Hwa Lee, Seong-Jong Ha
  • Patent number: 9305211
    Abstract: A method and apparatus for generating a dewarped document using a document image captured using a camera are provided. The method includes obtaining the document image captures using the camera, extracting text lines from the document image captured using the camera, determining a projection formula to convert positions of respective points constituting the extracted text lines to coordinates projected on a plane of the dewarped document, determining a target function used to calculate a difference between text lines projected on the place of the dewarped document using the projection formula and real text lines, calculating parameters that minimize the target function, and converting the document image to the dewarped document by substituting the calculated parameters into the projection formula.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: April 5, 2016
    Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Mu-sik Kwon, Nam-ik Cho, Sang-ho Kim, Beom-su Kim, Won-kyo Seo
  • Publication number: 20160088188
    Abstract: The present disclosure relates an image correction apparatus and method. The image correction apparatus includes a printing unit for printing an image; a scratch detecting unit which detects a scratch region from a scan image scanned per line; and a restoration processing unit which performs the restoration of the scratch region by interpolation if the width of the scratch region detected by the scratch detecting unit is less than a predetermined value and, if the width thereof is not less than the predetermined value, does not perform a restoration of the scratch region but provides the printing unit with the scan image, thereby correcting an image distortion by easily detecting an image distortion due to foreign matter.
    Type: Application
    Filed: July 8, 2015
    Publication date: March 24, 2016
    Inventors: Nam Ik CHO, Byoung Bag LEE, Cheol Ho OHK
  • Patent number: 9141854
    Abstract: A method of recognizing and generating a structure of a table included in an image is provided. The method includes extracting lines forming the table from among connection components forming an image, determining line intersections by using crossing functions matched with the lines, determining one of a plurality of crossing models identified based on a plurality of crossing shapes, in correspondence with each of the line intersections, and generating data about the table, which includes at least one cell determined using the determined crossing model.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: September 22, 2015
    Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Sang-ho Kim, Nam-ik Cho, Mu-sik Kwon, Beom-su Kim, Won-kyo Seo
  • Publication number: 20150093033
    Abstract: A method and apparatus for generating a dewarped document using a document image captured using a camera are provided. The method includes obtaining the document image captures using the camera, extracting text lines from the document image captured using the camera, determining a projection formula to convert positions of respective points constituting the extracted text lines to coordinates projected on a plane of the dewarped document, determining a target function used to calculate a difference between text lines projected on the place of the dewarped document using the projection formula and real text lines, calculating parameters that minimize the target function, and converting the document image to the dewarped document by substituting the calculated parameters into the projection formula.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Inventors: Mu-sik KWON, Nam-ik CHO, Sang-ho KIM, Beom-su KIM, Won-kyo SEO
  • Publication number: 20150071500
    Abstract: A method of recognizing and generating a structure of a table included in an image is provided. The method includes extracting lines forming the table from among connection components forming an image, determining line intersections by using crossing functions matched with the lines, determining one of a plurality of crossing models identified based on a plurality of crossing shapes, in correspondence with each of the line intersections, and generating data about the table, which includes at least one cell determined using the determined crossing model.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 12, 2015
    Inventors: Sang-ho KIM, Nam-ik CHO, Mu-sik KWON, Beom-su KIM, Won-kyo SEO