Patents by Inventor Yo-Hwan Noh

Yo-Hwan Noh 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: 11184570
    Abstract: A method of controlling parameters for image sensors includes; receiving a first image and a second image, calculating first feature values related to the first image and second feature values related to the second image; generating comparison results by comparing the first feature values of fixed regions and first variable regions of the first image with the second feature values of fixed regions and first variable regions of the second image, and controlling at least one parameter on the basis of the comparison results.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: November 23, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ha Young Ko, Yo Hwan Noh, Chae Sung Kim
  • Publication number: 20210075988
    Abstract: A method of controlling parameters for image sensors includes; receiving a first image and a second image, calculating first feature values related to the first image and second feature values related to the second image; generating comparison results by comparing the first feature values of fixed regions and first variable regions of the first image with the second feature values of fixed regions and first variable regions of the second image, and controlling at least one parameter on the basis of the comparison results.
    Type: Application
    Filed: November 16, 2020
    Publication date: March 11, 2021
    Inventors: HA YOUNG KO, YO HWAN NOH, CHAE SUNG KIM
  • Patent number: 10868993
    Abstract: A method of controlling parameters for image sensors includes; receiving a first image and a second image, calculating first feature values related to the first image and second feature values related to the second image; generating comparison results by comparing the first feature values of fixed regions and first variable regions of the first image with the second feature values of fixed regions and first variable regions of the second image, and controlling at least one parameter on the basis of the comparison results.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: December 15, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ha Young Ko, Yo Hwan Noh, Chae Sung Kim
  • Publication number: 20200007809
    Abstract: A method of controlling parameters for image sensors includes; receiving a first image and a second image, calculating first feature values related to the first image and second feature values related to the second image; generating comparison results by comparing the first feature values of fixed regions and first variable regions of the first image with the second feature values of fixed regions and first variable regions of the second image, and controlling at least one parameter on the basis of the comparison results.
    Type: Application
    Filed: June 21, 2019
    Publication date: January 2, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: HA YOUNG KO, YO HWAN NOH, CHAE SUNG KIM
  • Patent number: 10375337
    Abstract: A method of controlling parameters for image sensors includes; receiving a first image and a second image, calculating first feature values related to the first image and second feature values related to the second image; generating comparison results by comparing the first feature values of fixed regions and first variable regions of the first image with the second feature values of fixed regions and first variable regions of the second image, and controlling at least one parameter on the basis of the comparison results.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: August 6, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ha Young Ko, Yo Hwan Noh, Chae Sung Kim
  • Patent number: 10237492
    Abstract: An image sensor circuit includes an image sensor, a flicker detector and a flicker compensator. The image sensor generates frame data for a plurality of successive frames. The flicker detector determines a representative value of the frame data for each of the plurality of successive frames and generates a flicker detection signal that is activated when the determined representative values of the generated frame data show periodicity between a minimum value and a maximum value. The flicker compensator generates compensated frame data by compensating the frame data based on the determined representative values and a predetermined reference value when the flicker detection signal is activated.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: March 19, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Yo-Hwan Noh
  • Patent number: 10225495
    Abstract: A crosstalk processing module configured to process a crosstalk of an image signal includes a correction element generation unit, a storage, and a crosstalk correction check unit. The correction element generation unit receives the image signal and input information associated with at least a size of the image signal and generates seed values and correction parameters which are used to correct the crosstalk, based on the input information and a representative channel image signal obtained by separating the image signal with respect to color. The storage stores the seed values and the correction parameters. The crosstalk correction check unit receives the image signal, receives the seed values and the correction parameters from the storage, corrects the crosstalk, and outputs a final image signal and pass/fail information indicating a pass or fail of the correction of the crosstalk based on a plurality of reference values.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: March 5, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Da-Hee Lee, Dae-Kwan Kim, Yo-Hwan Noh, Kyung-Ho Kim, Chae-Sung Kim, Dong-Ki Min, Seong-Won Jo, Yun-Seok Choi
  • Patent number: 10211245
    Abstract: An image sensor according to an example embodiment concepts includes a pixel array including pixels, and each of the pixels includes photoelectric conversion elements. The photoelectric conversion elements independently operating to detect a phase difference. The image sensor further includes a control circuit configured to independently control exposure times of each of the photoelectric conversion elements included in each of the pixels.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: February 19, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae Chan Kim, Dong Ki Min, Kwang Hyun Lee, Yo Hwan Noh, Se Hwan Yun, Dae Kwan Kim, Young Jin Kim, Wang Hyun Kim, Hyuk Soon Choi
  • Publication number: 20180309944
    Abstract: A crosstalk processing module configured to process a crosstalk of an image signal includes a correction element generation unit, a storage, and a crosstalk correction check unit. The correction element generation unit receives the image signal and input information associated with at least a size of the image signal and generates seed values and correction parameters which are used to correct the crosstalk, based on the input information and a representative channel image signal obtained by separating the image signal with respect to color. The storage stores the seed values and the correction parameters. The crosstalk correction check unit receives the image signal, receives the seed values and the correction parameters from the storage, corrects the crosstalk, and outputs a final image signal and pass/fail information indicating a pass or fail of the correction of the crosstalk based on a plurality of reference values.
    Type: Application
    Filed: November 28, 2017
    Publication date: October 25, 2018
    Inventors: Da-Hee LEE, Dae-Kwan Kim, Yo-Hwan Noh, Kyung-Ho Kim, Chae-Sung Kim, Dong-ki Min, Seong-Won Jo, Yun-Seok Choi
  • Publication number: 20170338258
    Abstract: An image sensor according to an example embodiment concepts includes a pixel array including pixels, and each of the pixels includes photoelectric conversion elements. The photoelectric conversion elements independently operating to detect a phase difference. The image sensor further includes a control circuit configured to independently control exposure times of each of the photoelectric conversion elements included in each of the pixels.
    Type: Application
    Filed: June 16, 2017
    Publication date: November 23, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Tae Chan KIM, Dong Ki MIN, Kwang Hyun LEE, Yo Hwan NOH, Se Hwan YUN, Dae Kwan KIM, Young Jin KIM, Wang Hyun KIM, Hyuk Soon CHOI
  • Patent number: 9711553
    Abstract: An image sensor according to an example embodiment concepts includes a pixel array including pixels, and each of the pixels includes photoelectric conversion elements. The photoelectric conversion elements independently operating to detect a phase difference. The image sensor further includes a control circuit configured to independently control exposure times of each of the photoelectric conversion elements included in each of the pixels.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: July 18, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Chan Kim, Dong Ki Min, Kwang Hyun Lee, Yo Hwan Noh, Se Hwan Yun, Dae Kwan Kim, Young Jin Kim, Wang Hyun Kim, Hyuk Soon Choi
  • Publication number: 20170171450
    Abstract: An image sensor circuit includes an image sensor, a flicker detector and a flicker compensator. The image sensor generates frame data for a plurality of successive frames. The flicker detector determines a representative value of the frame data for each of the plurality of successive frames and generates a flicker detection signal that is activated when the determined representative values of the generated frame data show periodicity between a minimum value and a maximum value. The flicker compensator generates compensated frame data by compensating the frame data based on the determined representative values and a predetermined reference value when the flicker detection signal is activated.
    Type: Application
    Filed: November 28, 2016
    Publication date: June 15, 2017
    Inventor: YO-HWAN NOH
  • Publication number: 20170094212
    Abstract: A method of controlling parameters for image sensors includes; receiving a first image and a second image, calculating first feature values related to the first image and second feature values related to the second image; generating comparison results by comparing the first feature values of fixed regions and first variable regions of the first image with the second feature values of fixed regions and first variable regions of the second image, and controlling at least one parameter on the basis of the comparison results.
    Type: Application
    Filed: September 22, 2016
    Publication date: March 30, 2017
    Inventors: HA YOUNG KO, YO HWAN NOH, CHAE SUNG KIM
  • Publication number: 20150312461
    Abstract: An image sensor according to an example embodiment concepts includes a pixel array including pixels, and each of the pixels includes photoelectric conversion elements. The photoelectric conversion elements independently operating to detect a phase difference. The image sensor further includes a control circuit configured to independently control exposure times of each of the photoelectric conversion elements included in each of the pixels.
    Type: Application
    Filed: April 27, 2015
    Publication date: October 29, 2015
    Inventors: Tae Chan KIM, Dong Ki MIN, Kwang Hyun LEE, Yo Hwan NOH, Se Hwan YUN, Dae Kwan KIM, Young Jin KIM, Wang Hyun KIM, Hyuk Soon CHOI
  • Publication number: 20130258099
    Abstract: A method of a estimating a depth including outputting an optical signal to an object and estimating a depth between the object and the depth estimation device in response to a gate signal and a reflected optical signal which is reflected from the object, wherein the optical signal includes a plurality of sequences and a phase of a pulse of the optical signal is randomly changed for each of the plurality of sequences.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 3, 2013
    Inventors: Ilia Ovsiannikov, Dong Ki Min, Yo Hwan Noh
  • Patent number: 8154749
    Abstract: A method of transferring a deferred vertical synchronous signal and an image signal processor executing the method thereof are disclosed. Once the vertical synchronous signal for a kth frame is inputted from an encoding unit after a capture command is inputted, the method transmits a defer control command for a (k+1)th frame to an image sensor. Then, a return control command is transmitted to the image sensor if encoding of the kth frame is completed. With the present invention, complete encoding of image data becomes possible.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: April 10, 2012
    Assignee: Mtekvision Co., Ltd.
    Inventor: Yo-Hwan Noh
  • Patent number: 8059169
    Abstract: An aspect of the present invention features an apparatus for compensating color deviation of an image that has uneven color deviation.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: November 15, 2011
    Assignee: Mtekvision Co., Ltd.
    Inventor: Yo-Hwan Noh
  • Patent number: 8049795
    Abstract: Disclosed are a lens shading compensation apparatus and a lens shading compensation method in an image sensor that compensate the difference in signal amplitude according to the position of pixels to preserve the quality of a primitive image. The lens shading compensation apparatus includes a pixel value analyzing part, an auto exposure value setting part, a central pixel detecting part, a table generating part, a pixel location calculating part, a mask image generating part and a compensation part. The above apparatus and method perform a color interpolation individually for red, green and blue, and then compensate a lens shading image for each color in accordance with its characteristics. Also the above apparatus and method can analyze and compensate a lens shading phenomenon without considering other colors or being interrupted by other colors.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: November 1, 2011
    Assignee: Mtekvision Co., Ltd.
    Inventor: Yo-Hwan Noh
  • Patent number: 8023014
    Abstract: The invention relates to a method and apparatus for compensating the lens shading phenomenon in image sensor. The invention first stores an inputted compensation reference value, identifies a center pixel using digital image signals received sequentially in correspondence to each pixel from a sensor, generates analysis data corresponding to each pixel, generates and stores block compensation values for blocks grouped according to the distance from the center pixel, calculates the distance from a compensation target pixel to the center pixel, calculates a compensation value corresponding to the compensation target pixel using the block compensation value corresponding to the distance, and generates for output correction pixel data by aggregating analysis data and the compensation value corresponding to the compensation target pixel.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: September 20, 2011
    Assignee: Mtekvision Co., Ltd.
    Inventors: Dong-yong Kim, Yo-Hwan Noh
  • Patent number: 8018499
    Abstract: An image processing method and a device thereof are disclosed. In an image signal processor of the present invention, a process clock rate or an output clock rate for a preview mode is applied differently from a process clock rate or an output clock rate for a capture mode. When performing the capture mode, however, the process clock rate can be controlled to be the same as or larger than the output clock rate. With the present invention, the lagging can be reduced during the image processing.
    Type: Grant
    Filed: May 29, 2006
    Date of Patent: September 13, 2011
    Assignee: Mtekvision Co., Ltd.
    Inventor: Yo-Hwan Noh