Patents by Inventor Joon ki Paik

Joon ki Paik 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: 11816881
    Abstract: Disclosed are multiple object detection method and apparatus. The multiple object detection apparatus includes a feature map extraction unit for extracting a plurality of multi-scale feature maps based on an input image, and a feature map fusion unit for generating a multi-scale fusion feature map including context information by fusing adjacent multi-scale feature maps among the plurality of multi-scale feature maps generated by the feature map extraction unit.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: November 14, 2023
    Assignee: CHUNG ANG UNIVERSITY INDUSTRY ACADEMIC COOPERATION
    Inventors: Joon Ki Paik, Sang Woo Park, Dong Geun Kim, Dong Goo Kang
  • Publication number: 20220351502
    Abstract: Disclosed are multiple object detection method and apparatus. The multiple object detection apparatus includes a feature map extraction unit for extracting a plurality of multi-scale feature maps based on an input image, and a feature map fusion unit for generating a multi-scale fusion feature map including context information by fusing adjacent multi-scale feature maps among the plurality of multi-scale feature maps generated by the feature map extraction unit.
    Type: Application
    Filed: July 12, 2022
    Publication date: November 3, 2022
    Inventors: Joon Ki PAIK, Sang Woo PARK, Dong Geun KIM, Dong Goo KANG
  • Patent number: 11138446
    Abstract: An apparatus for detecting an object of a vehicle is provided. The apparatus includes a camera that acquires an image from front of a vehicle and a controller that generates feature pyramid images based on a plurality of feature images extracted from the image. The controller also generates feature aggregation images by filtering the feature pyramid images, detects a pedestrian area from the feature aggregation images, and detects face regions from the feature pyramid images. At least one of the face regions that overlaps the pedestrian area is then determined as a face of a pedestrian.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: October 5, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Chung Ang University Industry Academic Cooperation Foundation
    Inventors: Hyun Sang Kim, Yun Sup Ann, Joon Ki Paik, Jin Beum Jang, Nak Eun Choi, Yeon Seung Choo
  • Patent number: 10885667
    Abstract: Disclosed a normalized metadata generation device, and object occlusion detection device and method. A normalized metadata generation method includes generating a multi-ellipsoid based three-dimensional human model using perspective features of a plurality of two-dimensional images obtained by the multiple cameras, performing scene calibration based on the three-dimensional human model to normalize object information of the object included in the two-dimensional images, and generating normalized metadata of the object from the two-dimensional images on which the scene calibration is performed.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: January 5, 2021
    Assignee: CHUNG ANG UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION
    Inventors: Joon Ki Paik, Jae Hoon Jung, In Hye Yoon, Seung Won Lee
  • Patent number: 10872398
    Abstract: The apparatus for removing haze from an image using a fuzzy membership function includes memory configured to store computer-readable instructions; and a processor configured to execute the instructions, wherein the processor calculates a hazy value and a transmission map using an input image including a hazy component and generates a restored image from which the hazy component has been removed using the hazy value and the transmission map, and wherein the processor selects a first area in the input image, calculates a fuzzy membership function of pixels of the input image with respect to the hazy value using brightness values of the pixels of the input image and brightness values of pixels of the first area, and calculates the transmission map using the brightness values of pixels of the first area and the fuzzy membership function.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: December 22, 2020
    Assignee: CHUNG ANG UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION
    Inventors: Joon Ki Paik, Ha Sil Park, Jin Ho Park, Hee Gwang Kim
  • Publication number: 20200327337
    Abstract: An apparatus for detecting an object of a vehicle is provided. The apparatus includes a camera that acquires an image from front of a vehicle and a controller that generates feature pyramid images based on a plurality of feature images extracted from the image. The controller also generates feature aggregation images by filtering the feature pyramid images, detects a pedestrian area from the feature aggregation images, and detects face regions from the feature pyramid images. At least one of the face regions that overlaps the pedestrian area is then determined as a face of a pedestrian.
    Type: Application
    Filed: September 12, 2019
    Publication date: October 15, 2020
    Inventors: Hyun Sang Kim, Yun Sup Ann, Joon Ki Paik, Jin Beum Jang, Nak Eun Choi, Yeon Seung Choo
  • Publication number: 20200005490
    Abstract: Disclosed a normalized metadata generation device, and object occlusion detection device and method. A normalized metadata generation method includes generating a multi-ellipsoid based three-dimensional human model using perspective features of a plurality of two-dimensional images obtained by the multiple cameras, performing scene calibration based on the three-dimensional human model to normalize object information of the object included in the two-dimensional images, and generating normalized metadata of the object from the two-dimensional images on which the scene calibration is performed.
    Type: Application
    Filed: March 7, 2017
    Publication date: January 2, 2020
    Inventors: Joon Ki PAIK, Jae Hoon JUNG, In Hye YOON, Seung Won LEE
  • Publication number: 20190147568
    Abstract: The apparatus for removing haze from an image using a fuzzy membership function includes memory configured to store computer-readable instructions; and a processor configured to execute the instructions, wherein the processor calculates a hazy value and a transmission map using an input image including a hazy component and generates a restored image from which the hazy component has been removed using the hazy value and the transmission map, and wherein the processor selects a first area in the input image, calculates a fuzzy membership function of pixels of the input image with respect to the hazy value using brightness values of the pixels of the input image and brightness values of pixels of the first area, and calculates the transmission map using the brightness values of pixels of the first area and the fuzzy membership function.
    Type: Application
    Filed: November 14, 2018
    Publication date: May 16, 2019
    Inventors: Joon Ki PAIK, Ha Sil PARK, Jin Ho PARK, Hee Gwang KIM
  • Patent number: 10038018
    Abstract: Provided is an image sensor. The image sensor includes a pixel array including a plurality of pixel blocks. Each of the plurality of pixel blocks includes a plurality of pixels arranged in a matrix form. Each of the plurality of pixels includes a plurality of phase difference sensing pixels. Each of the plurality of phase difference sensing pixels may be periodically repeatedly arranged in the pixel array in a horizontal direction and a vertical direction.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: July 31, 2018
    Assignees: SK Hynix Inc., Chung-Ang University Industry Academic Cooperation Foundation
    Inventors: Jong-Heon Kim, Jae-Hyun Im, Jae-Hwan Jeon, Wan-Hee Jo, Joon-Ki Paik, Jin-Beum Jang, Yoon-Jong Yoo
  • Patent number: 9986183
    Abstract: A lens distortion correction device and an application processor having the same include a distortion correction unit configured to correct a distorted image into an undistorted image and an image enhancement unit configured to improve the undistorted image using a high-frequency component of the distorted image.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: May 29, 2018
    Assignees: Samsung Electronics Co., Ltd., Chung-Ang University Industry—Academy Cooperation Foundation
    Inventors: Byung-Joon Baek, Joon-Ki Paik, Tae-Chan Kim, Dong-Gyun Kim, Jin-Ho Park
  • Publication number: 20180063511
    Abstract: Disclosed are an apparatus and a method for detecting an object automatically and estimating depth information of an image captured by an imaging device having a multiple color-filter aperture. A background generation unit detects a movement from a current image frame among a plurality of continuous image frames captured by an MCA camera to generate a background image frame corresponding to the current image frame. An object detection unit detects an object region included in the current image frame based on differentiation between a plurality of color channels of the current image frame and a plurality of color channels of the background image frame. According to an embodiment of the present invention, it is possible to automatically detect an object by a repetitively updated background image frame and to accurately estimate object information by separately detecting an object for each color channel by considering a property of the MCA camera.
    Type: Application
    Filed: November 7, 2017
    Publication date: March 1, 2018
    Applicant: CHUNG-ANG UNIVERSITY INDUSTRY-ACADEMY COOPERATION FOUNDATION
    Inventors: Joon-Ki PAIK, Seung-Won Lee, Jung-Hyun Lee
  • Patent number: 9854152
    Abstract: The present invention relates to an auto-focus system and method based on a sensor, using hierarchical extraction and motion estimation for an image. The auto-focus method may include the steps of: (a) extracting a phase difference image from a sensed image; (b) extracting a robust feature image which satisfies a preset reference with respect to noise and out-of-focus blur, from the phase difference image; and (C) estimating a motion vector for lens shift from the feature image.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: December 26, 2017
    Assignees: SK Hynix Inc., Chungang University Industry Academic Cooperation Foundation
    Inventors: Joon Ki Paik, Yoon Jong Yoo, Jin Beum Jang, Jong Heon Kim, Jae Hyun Im, Jae Hwan Jeon, Wan Hee Jo
  • Patent number: 9836851
    Abstract: An apparatus for detecting multiple objects using adaptive block partitioning is disclosed. An object contour extracting unit configured to extract a contour information of an object using a local binary pattern LBP and difference image between adjacent images. An adaptive block partitioning unit configured to perform a block partitioning of an object not overlapped based on the extracted contour information. A motion quantization unit configured to calculate a motion orientation histogram MOH of the object by performing N-directional quantization about a motion vector. An object detection unit configured to detect the object using a block of the partitioned object, the contour information and the MOH, and estimate a moving direction of the object after performing labeling the detected object.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: December 5, 2017
    Assignee: Chung-Ang University Industry-Academy Cooperation Foundation
    Inventors: Joon-Ki Paik, Seung-Won Lee
  • Patent number: 9826162
    Abstract: A method and an apparatus for restoring a motion blurred image are disclosed. The method of restoring a motion blurred image comprises calculating a motion trajectory and a project trajectory of a camera using an embedded sensor; estimating a point spread function according to camera motion by using the motion trajectory and the project trajectory; and restoring the motion blurred image using the estimated point spread function and a spatially variant activity map.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: November 21, 2017
    Assignee: CHUNG-ANG UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Joon Ki Paik, Eun Sung Lee, Eun Jung Chae, He Jin Cheong
  • Publication number: 20170309662
    Abstract: Provided is an image sensor. The image sensor includes a pixel array including a plurality of pixel blocks. Each of the plurality of pixel blocks includes a plurality of pixels arranged in a matrix form. Each of the plurality of pixels includes a plurality of phase difference sensing pixels. Each of the plurality of phase difference sensing pixels may be periodically repeatedly arranged in the pixel array in a horizontal direction and a vertical direction.
    Type: Application
    Filed: August 30, 2016
    Publication date: October 26, 2017
    Inventors: Jong-Heon KIM, Jae-Hyun IM, Jae-Hwan JEON, Wan-Hee JO, Joon-Ki PAIK, Jin-Beum JANG, Yoon-Jong YOO
  • Patent number: 9697591
    Abstract: Provided are a non-dyadic lens distortion correction method and an apparatus thereof. The non-dyadic lens distortion correction method includes: (a) acquiring a non-dyadic lens image photographed through a non-dyadic lens; (b) correcting geometric distortion for the non-dyadic lens image by stage by applying a magnification ratio based on a projection model; and (c) compensating a high-frequency component of an image corrected in a previous step by the patch unit in the non-dyadic lens image of which the geometric distortion is corrected.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: July 4, 2017
    Assignee: Chung-Ang University Industry-Academy Cooperation Foundation
    Inventors: Joon Ki Paik, Jin Ho Park, Dong Gyun Kim, Yoon Jong Yoo, Dae Hee Kim
  • Publication number: 20170180627
    Abstract: The present invention relates to an auto-focus system and method based on a sensor, using hierarchical extraction and motion estimation for an image. The auto-focus method may include the steps of: (a) extracting a phase difference image from a sensed image; (b) extracting a robust feature image which satisfies a preset reference with respect to noise and out-of-focus blur, from the phase difference image; and (C) estimating a motion vector for lens shift from the feature image.
    Type: Application
    Filed: April 27, 2016
    Publication date: June 22, 2017
    Inventors: Joon Ki PAIK, Yoon Jong YOO, Jin Beum JANG, Jong Heon KIM, Jae Hyun IM, Jae Hwan JEON, Wan Hee JO
  • Publication number: 20170126996
    Abstract: A lens distortion correction device and an application processor having the same include a distortion correction unit configured to correct a distorted image into an undistorted image and an image enhancement unit configured to improve the undistorted image using a high-frequency component of the distorted image.
    Type: Application
    Filed: January 13, 2017
    Publication date: May 4, 2017
    Inventors: Byung-Joon Baek, Joon-Ki Paik, Tae-Chan Kim, Dong-Gyun Kim, Jin-Ho Park
  • Patent number: 9633419
    Abstract: A lens distortion correction device and an application processor having the same include a distortion correction unit configured to correct a distorted image into an undistorted image and an image enhancement unit configured to improve the undistorted image using a high-frequency component of the distorted image.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: April 25, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-Joon Baek, Joon-Ki Paik, Tae-Chan Kim, Dong-Gyun Kim, Jin-Ho Park
  • Publication number: 20170104933
    Abstract: A method and an apparatus for restoring a motion blurred image are disclosed. The method of restoring a motion blurred image comprises calculating a motion trajectory and a project trajectory of a camera using an embedded sensor; estimating a point spread function according to camera motion by using the motion trajectory and the project trajectory; and restoring the motion blurred image using the estimated point spread function and a spatially variant activity map.
    Type: Application
    Filed: March 14, 2016
    Publication date: April 13, 2017
    Applicant: CHUNG-ANG UNIVERSITY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Joon Ki PAIK, Eun Sung LEE, Eun Jung CHAE, He Jin CHEONG