Patents by Inventor Keun-Joo Park

Keun-Joo Park 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: 20220109803
    Abstract: Disclosed is an image adjustment apparatus including a receiver which is configured to receive a first input image of an object which is time-synchronously captured and a second input image in which a motion event of the object is sensed time-asynchronously, and an adjuster which is configured to adjust the first input image and the second input image.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 7, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo PARK, Hyun Surk Ryu, Tae Chan Kim, Jun Haeng Lee
  • Patent number: 11233964
    Abstract: Disclosed is an image adjustment apparatus including a receiver which is configured to receive a first input image of an object which is time-synchronously captured and a second input image in which a motion event of the object is sensed time-asynchronously, and an adjuster which is configured to adjust the first input image and the second input image.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: January 25, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo Park, Hyun Surk Ryu, Tae Chan Kim, Jun Haeng Lee
  • Publication number: 20220021835
    Abstract: An image sensor includes a CIS (CMOS image sensor) pixel, a DVS (dynamic vision sensor) pixel, and an image signal processor. The CIS pixel includes a photoelectric conversion device generating charges corresponding to an incident light and a readout circuit generating an output voltage corresponding to the generated charges. The DVS pixel detects a change in an intensity of the incident light based on the generated charges to output an event signal and does not include a separate photoelectric conversion device. The image signal processor allows the photoelectric conversion device to be connected to the readout circuit or the DVS pixel.
    Type: Application
    Filed: October 1, 2021
    Publication date: January 20, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae SUH, Junseok KIM, Hyunsurk RYU, Keun Joo PARK, Masamichi ITO
  • Patent number: 11202025
    Abstract: An image processing device includes a vision sensor and a processor. The vision sensor generates a plurality of events in which an intensity of light changes and generates a plurality of timestamps depending on times when the events occur. In addition, the processor may regenerate a timestamp of a pixel where an abnormal event occurs, based on temporal correlation of the events.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: December 14, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo Park, Junseok Kim, Yohan Roh, Hyunsurk Ryu, Jooyeon Woo, Hyunku Lee
  • Patent number: 11140349
    Abstract: An image sensor includes a CIS (CMOS image sensor) pixel, a DVS (dynamic vision sensor) pixel, and an image signal processor. The CIS pixel includes a photoelectric conversion device generating charges corresponding to an incident light and a readout circuit generating an output voltage corresponding to the generated charges. The DVS pixel detects a change in an intensity of the incident light based on the generated charges to output an event signal and does not include a separate photoelectric conversion device. The image signal processor allows the photoelectric conversion device to be connected to the readout circuit or the DVS pixel.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: October 5, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae Suh, Junseok Kim, Hyunsurk Ryu, Keun Joo Park, Masamichi Ito
  • Patent number: 10970850
    Abstract: A method and device for recognizing a motion of an object, the method including receiving event signals from a vision sensor configured to sense the motion, storing, in an event map, first time information indicating a time at which intensity of light corresponding to the event signals changes; generating an image based on second time information corresponding to a predetermined time range among the first time information, and recognizing the motion of the object based on the image.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: April 6, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoobin Lee, Keun Joo Park, Kyoungseok Pyun, Eric Hyunsurk Ryu
  • Publication number: 20200412930
    Abstract: An event detecting device may include an event signal generator configured to output a plurality of event signals, each including a first data and a second data having mutually complementary attributes and respective address data indicating positions of pixels having output the first data and the second data, a data manager configured to store one of the first data and the second data of a first one of the plurality of event signals and the respective address data in a buffer as first sub data when only one of the first data and the second data of the first one of the plurality of event signals includes the event information, and an output signal generator configured to generate an output signal using the first sub data and a second sub data when the second sub data, different from the first sub data, is stored in the buffer.
    Type: Application
    Filed: September 14, 2020
    Publication date: December 31, 2020
    Inventors: HEE JAE JUNG, JUN SEOK KIM, HYUN SURK RYU, YUN JAE SUH, BONG KI SON, SEOL NAMGUNG, KEUN JOO PARK
  • Patent number: 10855927
    Abstract: An event detecting device may include an event signal generator configured to output a plurality of event signals, each including a first data and a second data having mutually complementary attributes and respective address data indicating positions of pixels having output the first data and the second data, a data manager configured to store one of the first data and the second data of a first one of the plurality of event signals and the respective address data in a buffer as first sub data when only one of the first data and the second data of the first one of the plurality of event signals includes the event information, and an output signal generator configured to generate an output signal using the first sub data and a second sub data when the second sub data, different from the first sub data, is stored in the buffer.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: December 1, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee Jae Jung, Jun Seok Kim, Hyun Surk Ryu, Yun Jae Suh, Bong Ki Son, Seol Namgung, Keun Joo Park
  • Patent number: 10817138
    Abstract: An apparatus and a method for processing an input are provided. The apparatus includes a shape identifier configured to identify a first shape corresponding to a user input among shapes, a pattern identifier configured to identify a first pattern corresponding to the user input among patterns, and a determiner configured to determine a first command corresponding to the first shape and the first pattern.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: October 27, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo Park, Tae Young Ha, So Young Lee, Hyun Surk Ryu
  • Patent number: 10795568
    Abstract: A method of displaying a menu based on at least one of a depth information and a space gesture is provided. The method including determining depth information corresponding to a distance from a screen of a user terminal to a hand of a user; identifying at least one layer among a plurality of layers based on the depth information; and applying a graphic effect to the identified layer so that a menu page corresponding to the at least one identified layer is displayed on the screen of the user terminal.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo Park, Hyun Surk Ryu, Chang Kyu Choi, Joon Ah Park
  • Patent number: 10769480
    Abstract: An object detection method and a neural network system for object detection are disclosed. The object detection method acquires a current frame of a sequence of frames representing an image sequence, and extracts a feature map of the current frame. The extracted feature map is pooled with information of a pooled feature map of a previous frame to thereby obtain a pooled feature map of the current frame. An object is detected from the pooled feature map of the current frame. A dynamic vision sensor (DVS) may be utilized to provide the sequence of frames. Improved object detection accuracy may be realized, particularly when object movement speed is slow.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: September 8, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., BEIJING SAMSUNG TELECOM R&D CENTER
    Inventors: Jia Li, Feng Shi, Weiheng Liu, Dongqing Zou, Qiang Wang, Hyunsurk Ryu, Keun Joo Park, Hyunku Lee
  • Publication number: 20200260042
    Abstract: Disclosed is an image adjustment apparatus including a receiver which is configured to receive a first input image of an object which is time-synchronously captured and a second input image in which a motion event of the object is sensed time-asynchronously, and an adjuster which is configured to adjust the first input image and the second input image.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo PARK, Hyun Surk Ryu, Tae Chan Kim, Jun Haeng Lee
  • Patent number: 10674104
    Abstract: Disclosed is an image adjustment apparatus including a receiver which is configured to receive a first input image of an object which is time-synchronously captured and a second input image in which a motion event of the object is sensed time-asynchronously, and an adjuster which is configured to adjust the first input image and the second input image.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: June 2, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo Park, Hyun Surk Ryu, Tae Chan Kim, Jun Haeng Lee
  • Patent number: 10649544
    Abstract: Provided is a data output device that includes an event array including a plurality of sensing elements; a first event identifier connected to a first sensing element among the plurality of sensing elements and configured to identify first element information corresponding to the first sensing element in response to the case where an event is detected by the first sensing element; a second event identifier connected to a second sensing element among the plurality of sensing elements and configured to identify second element information corresponding to the second sensing element in response to the case where the event is detected by the second sensing element; and an event output interface configured to output event information based on at least one of the first element information and the second element information.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: May 12, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae Suh, Keun Joo Park, Sung Ho Kim, Junseok Kim, Hyunsurk Ryu
  • Patent number: 10636164
    Abstract: The disclosure provides an object detection method and apparatus based on a Dynamic Vision Sensor (DVS). The method includes the following operations of: acquiring a plurality of image frames by a DVS; and, detecting the image frames by a recurrent coherent network to acquire a candidate box for objects to be detected, wherein the recurrent coherent network comprising a frame detection network model and a candidate graph model. By using a new recurrent coherent detection network, a bounding box for an object to be detected is fast detected from the data acquired by a DVS. The detection speed is improved greatly while ensuring the detection accuracy.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: April 28, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jia Li, Qiang Wang, Feng Shi, Deheng Qian, Dongqing Zou, Hyunsurk Eric Ryu, JinMan Park, Jingtao Xu, Keun Joo Park, Weiheng Liu
  • Publication number: 20200092508
    Abstract: An image processing device includes a vision sensor and a processor. The vision sensor generates a plurality of events in which an intensity of light changes and generates a plurality of timestamps depending on times when the events occur. In addition, the processor may regenerate a timestamp of a pixel where an abnormal event occurs, based on temporal correlation of the events.
    Type: Application
    Filed: November 20, 2019
    Publication date: March 19, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Keun Joo PARK, Junseok KIM, Yohan ROH, Hyunsurk RYU, Jooyeon WOO, Hyunku LEE
  • Publication number: 20200092507
    Abstract: An image processing device includes a vision sensor and a processor. The vision sensor generates a plurality of events in which an intensity of light changes and generates a plurality of timestamps depending on times when the events occur. In addition, the processor may regenerate a timestamp of a pixel where an abnormal event occurs, based on temporal correlation of the events.
    Type: Application
    Filed: November 20, 2019
    Publication date: March 19, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Keun Joo Park, Junseok Kim, Yohan Roh, Hyunsurk Ryu, Jooyeon Woo, Hyunku Lee
  • Publication number: 20200084403
    Abstract: An image sensor includes a CIS (CMOS image sensor) pixel, a DVS (dynamic vision sensor) pixel, and an image signal processor. The CIS pixel includes a photoelectric conversion device generating charges corresponding to an incident light and a readout circuit generating an output voltage corresponding to the generated charges. The DVS pixel detects a change in an intensity of the incident light based on the generated charges to output an event signal and does not include a separate photoelectric conversion device. The image signal processor allows the photoelectric conversion device to be connected to the readout circuit or the DVS pixel.
    Type: Application
    Filed: August 27, 2019
    Publication date: March 12, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunjae SUH, Junseok KIM, Hyunsurk RYU, Keun Joo PARK, Masamichi ITO
  • Patent number: 10582179
    Abstract: A method and apparatus for processing a binocular disparity image are provided. A method of determining a disparity of a binocular disparity image that includes a left eye image and a right eye image includes acquiring features of a plurality of pixels of the binocular disparity image based on an event distribution of the binocular disparity image, calculating a cost matrix of matching respective pixels between the left eye image and the right eye image based on the features, and determining a disparity of each matched pair of pixels based on the cost matrix.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: March 3, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dongqing Zou, Ping Guo, Qiang Wang, Baek Hwan Cho, Keun Joo Park
  • Patent number: RE48780
    Abstract: A method of extracting a static pattern from an output of an event-based sensor. The method may include receiving an event signal from the event-based sensor in response to dynamic input, and extracting a static pattern associated with the dynamic input based on an identifier and time included in the event signal. The static pattern may be extracted from a map generated based on the identifier and time.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: October 19, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun Haeng Lee, Keun Joo Park, Changwoo Shin, Jooyeon Woo, Hyunsurk Eric Ryu, Seokjin Hong