Patents by Inventor Joon Hyuk Cha

Joon Hyuk Cha 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: 9378544
    Abstract: Provided is an apparatus and method for generating a three-dimensional (3D) panoramic image using a single camera. The image processing apparatus may generate a two-dimensional (2D) reference panoramic image using a central area of each of a plurality of input image frames, and may extract a left-eye strip and a right-eye strip of when a similarity calculated in the plurality of input image frames based on the 2D reference panoramic image has a maximum value.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: June 28, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon Hyuk Cha, Young Su Moon, Young Sun Jeon, Shi Hwa Lee
  • Patent number: 9171227
    Abstract: Provided is an apparatus and method for extracting feature information of an image using a scale-invariant feature transform (SIFT) algorithm. The apparatus may include a first interface configured to generate one or more tile images from a first source image stored in a particular memory, such as a high-capacity short-term memory, and a feature information extractor configured to receive the generated one or more tile images and to respectively extract feature information from each of the one or more input tile images, where the first interface may be configured to generate the one or more tile images by selectively dividing the first source image into the one or more tile images based on a horizontal resolution of the first source image.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: October 27, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Min Tai, Young Su Moon, Jung Uk Cho, Joon Hyuk Cha, Hyun Sang Park, Shi Hwa Lee
  • Patent number: 9165209
    Abstract: An apparatus and method for calculating a cumulative histogram of an image are provided. A cumulative histogram calculation apparatus may include a cumulative value selecting unit to select cumulative data obtained by accumulating input data, based on a number of combinations of the input data, and a loading unit to load the selected cumulative value in a corresponding bin of a histogram.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: October 20, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Min Tai, Young Su Moon, Jung Uk Cho, Joon Hyuk Cha, Shi Hwa Lee, Hyun Sang Park
  • Patent number: 9105107
    Abstract: Apparatus and method for correcting a tone of a panoramic image. An image processing apparatus may acquire, from an overlapping region of a left image and a right image, ghost information based on an optimal threshold and a cost map in which a similarity between the left image and the right image is reflected, may generate a tone correction map based on a global tone correction function generated using the ghost information in the overlapping region, and based on a local tone correction level generated using local information of an optimal seam, and may correct the left image and the right image using a final tone correction map generated by applying, to the tone correction map, a weighting based on the left image and a weighting based on the right image.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: August 11, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon Hyuk Cha, Young Su Moon, Young Sun Jeon, Shi Hwa Lee
  • Patent number: 9104526
    Abstract: A transaction splitting apparatus and method are provided in which neighboring sub-transactions accessing a predetermined bank in each memory may access different banks. The transaction splitting apparatus includes a first processing unit to split a transaction into at least one sub-transaction, the transaction accessing a first bank among a plurality of banks comprised in a memory, and a second processing unit to translate an address of the at least one sub-transaction, to interleave the at least one sub-transaction using the plurality of banks.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: August 11, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Sun Jeon, Ho Jin Lee, Joon Hyuk Cha, Shi Hwa Lee, Young Su Moon, Hyun Sang Park
  • Patent number: 9053521
    Abstract: An image processing apparatus is provided. The image processing apparatus for image signal processor (ISP) realization may include a Static Random Access Memory (SRAM) for each function module. A unified SRAM to store at least one line data of an input image for each of a plurality of functions modules within the image processing apparatus is further provided.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: June 9, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Sun Jeon, Ho Jin Lee, Joon Hyuk Cha, Shi Hwa Lee, Young Su Moon, Hyun Sang Park
  • Patent number: 8971410
    Abstract: A method of processing frames obtained by multiple exposures may include categorizing, by at least one processor, a plurality of frames captured by multiple exposures into one of a reference frame and a target frame, compensating for global motion resulting from motion of a capturing apparatus capturing an object, and compensating for local motion resulting from motion of the object, based on a joint histogram between the reference frame and the target frame.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: March 3, 2015
    Assignees: Samsung Electronics Co., Ltd., SNU R&DB Foundation
    Inventors: Kyoung Mu Lee, Young Su Moon, Yong Seok Heo, Joon Hyuk Cha, Shi Hwa Lee
  • Patent number: 8942509
    Abstract: An apparatus and method creating a ghost-free High Dynamic Range Image (HDRI) based on filtering are provided. It is possible to effectively prevent a ghost phenomenon from occurring when a single HDRI is created from a plurality of LDRIs, by defining a ghost area using a probability based on a global transfer function indicating a relationship for intensities of several frames, rather than searching for or identifying a ghost area in a single or each image.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: January 27, 2015
    Assignees: Samsung Electronics Co., Ltd., SNU R&DB Foundation
    Inventors: Joon Hyuk Cha, Kyoung Mu Lee, Yong Seok Heo, Young Su Moon, Sang Uk Lee, Shi Hwa Lee
  • Patent number: 8718361
    Abstract: Provided is an apparatus, method and computer-readable medium removing noise of an image. The apparatus may include a channel image correction unit to correct remaining channel images excluding a currently processed channel image, from among a plurality of channel images, using the currently processed channel image, a noise removal unit to remove noise of the currently processed channel image, using the corrected remaining channel images and the currently processed channel image, and a color image reconstruction unit to reconstruct a color image in which noise is removed, by combining the plurality of channel images in which noise is removed when the noise of the plurality of channel images is removed.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: May 6, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Su Moon, Joon Hyuk Cha, Shi Hwa Lee, Young Sun Jeon
  • Publication number: 20140029851
    Abstract: An apparatus and method for calculating a cumulative histogram of an image are provided. A cumulative histogram calculation apparatus may include a cumulative value selecting unit to select cumulative data obtained by accumulating input data, based on a number of combinations of the input data, and a loading unit to load the selected cumulative value in a corresponding bin of a histogram.
    Type: Application
    Filed: April 29, 2013
    Publication date: January 30, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yong Min TAI, Young Su MOON, Jung Uk CHO, Joon Hyuk CHA, Shi Hwa LEE, Hyun Sang PARK
  • Publication number: 20130343655
    Abstract: Provided is an apparatus and method for extracting feature information of an image using a scale-invariant feature transform (SIFT) algorithm. The apparatus may include a first interface configured to generate one or more tile images from a first source image stored in a particular memory, such as a high-capacity short-term memory, and a feature information extractor configured to receive the generated one or more tile images and to respectively extract feature information from each of the one or more input tile images, where the first interface may be configured to generate the one or more tile images by selectively dividing the first source image into the one or more tile images based on a horizontal resolution of the first source image.
    Type: Application
    Filed: June 20, 2013
    Publication date: December 26, 2013
    Inventors: Yong Min TAI, Young Su Moon, Jung Uk Cho, Joon Hyuk Cha, Hyun Sang Park, Shi Hwa Lee
  • Publication number: 20130242039
    Abstract: Provided is an apparatus and method for generating a three-dimensional (3D) panoramic image using a single camera. The image processing apparatus may generate a two-dimensional (2D) reference panoramic image using a central area of each of a plurality of input image frames, and may extract a left-eye strip and a right-eye strip of when a similarity calculated in the plurality of input image frames based on the 2D reference panoramic image has a maximum value.
    Type: Application
    Filed: February 7, 2013
    Publication date: September 19, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon Hyuk CHA, Young Su Moon, Young Sun Jeon, Shi Hwa Lee
  • Publication number: 20130093839
    Abstract: An apparatus and method of generating a three-dimensional (3D) panoramic image, using a single camera. The apparatus may include a frame slit capturing unit to capture a first frame slit in an Nth video frame, and to capture a second frame slit from an (N+2)th video frame, and a 3D image generating unit to generate a left image using the captured first frame slit and the captured second frame slit. Here, the frame slit capturing unit may capture a third frame slit in an (N+1)th video frame, and captures a fourth frame slit in an (N+3)th video frame, and the 3D image generating unit may generate a right image using the captured third frame slit and the captured fourth frame slit.
    Type: Application
    Filed: August 16, 2012
    Publication date: April 18, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Young Sun JEON, Young Su MOON, Shi Hwa LEE, Joon Hyuk CHA
  • Patent number: 8385679
    Abstract: An image enhancement apparatus and method based on luminance information of a pixel. The image enhancement apparatus may determine luminance data of each of a plurality of pixels, and may adaptively determine a conversion ratio according to the luminance data to apply the conversion ratio to an input image, thereby performing image-enhancing. The image enhancement apparatus may adaptively converse the input image according to luminance data, thereby precisely and effectively performing image-enhancing.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: February 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Su Moon, Shi Hwa Lee, Ho Jin Lee, Joon Hyuk Cha
  • Publication number: 20120314945
    Abstract: Apparatus and method for correcting a tone of a panoramic image. An image processing apparatus may acquire, from an overlapping region of a left image and a right image, ghost information based on an optimal threshold and a cost map in which a similarity between the left image and the right image is reflected, may generate a tone correction map based on a global tone correction function generated using the ghost information in the overlapping region, and based on a local tone correction level generated using local information of an optimal seam, and may correct the left image and the right image using a final tone correction map generated by applying, to the tone correction map, a weighting based on the left image and a weighting based on the right image.
    Type: Application
    Filed: February 16, 2012
    Publication date: December 13, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon Hyuk CHA, Young Su Moon, Young Sun Jeon, Shi Hwa Lee
  • Patent number: 8305487
    Abstract: Provided is a multi-exposure controlling method and apparatus. An exposure control unit may set an initial exposure time based on a comparison result between a predetermined brightness confidence interval and an average high brightness that is calculated based on at least one current histogram. A comparison unit may compare the brightness confidence interval and an average low brightness that is calculated based on a subsequent histogram obtained by photographing a subject using the set initial exposure time. The exposure control unit may change the initial exposure time based on a comparison result of the comparison unit.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: November 6, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon-Hyuk Cha, Young Su Moon, Shi Hwa Lee
  • Patent number: 8228422
    Abstract: Disclosed are an auto exposure system and a method thereof. The auto exposure system may check whether an exposure target value is correct using brightness information of an input image. When the exposure target value is not proper, the auto exposure system may readjust the exposure target value through analyzing the brightness information of the input image. Also, the auto exposure system may correct exposure of the input image based on an exposure correction value according to the adjusted exposure target value, thereby adjusting the exposure of the input image to be proper. Also, exposure information of the input image may be easily obtained from a final exposure target value.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: July 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon Hyuk Cha, Young Su Moon, Sang Jo Lee, Ho Jin Lee
  • Publication number: 20120141029
    Abstract: An apparatus and method creating a ghost-free High Dynamic Range Image (HDRI) based on filtering are provided. It is possible to effectively prevent a ghost phenomenon from occurring when a single HDRI is created from a plurality of LDRIs, by defining a ghost area using a probability based on a global transfer function indicating a relationship for intensities of several frames, rather than searching for or identifying a ghost area in a single or each image.
    Type: Application
    Filed: June 13, 2011
    Publication date: June 7, 2012
    Applicants: SNU R&DB FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon Hyuk CHA, Kyoung Mu Lee, Yong Seok Heo, Young Su Moon, Sang Uk Lee, Shi Hwa Lee
  • Publication number: 20110310970
    Abstract: A method of processing frames obtained by multiple exposures may include categorizing, by at least one processor, a plurality of frames captured by multiple exposures into one of a reference frame and a target frame, compensating for global motion resulting from motion of a capturing apparatus capturing an object, and compensating for local motion resulting from motion of the object, based on a joint histogram between the reference frame and the target frame.
    Type: Application
    Filed: May 31, 2011
    Publication date: December 22, 2011
    Applicants: SNU R&DB Foundation, Samsung Electronics Co., Ltd.
    Inventors: Kyoung Mu Lee, Young Su Moon, Yong Seok Heo, Joon Hyuk Cha, Shi Hwa Lee
  • Publication number: 20110283042
    Abstract: A transaction splitting apparatus and method are provided in which neighboring sub-transactions accessing a predetermined bank in each memory may access different banks. The transaction splitting apparatus includes a first processing unit to split a transaction into at least one sub-transaction, the transaction accessing a first bank among a plurality of banks comprised in a memory, and a second processing unit to translate an address of the at least one sub-transaction, to interleave the at least one sub-transaction using the plurality of banks.
    Type: Application
    Filed: May 5, 2011
    Publication date: November 17, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Sun Jeon, Ho Jin Lee, Joon Hyuk Cha, Shi Hwa Lee, Young Su Moon, Hyun Sang Park