Patents by Inventor Ki-won Yoo

Ki-won Yoo 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: 20190222840
    Abstract: A video encoding apparatus comprises an encoder encoding input video; a decoder decoding video data, and a filter to compensate for a pixel value of the encoded video data. An adaptive loop filter (ALF) parameter predictor generates an ALF filter parameter using the decoded video data. The ALF filter parameter is applied to an ALF filter to compensate a current pixel by using a pixel adjacent to the current pixel and a filter coefficient with respect to the neighboring pixel; a sample adaptive offset (SAO) filter unit applied to the decoded video data compensates for a current pixel by using at least one of an edge offset and a band offset; an ALF filter unit applies the ALF filter parameter, the ALF filter to video data to which the SAO filter has been applied; and an entropy encoder performs entropy encoding on the ALF filter parameter.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-dae KIM, Ki-won YOO, Jae-moon Kim, Sang-kwon Na
  • Patent number: 10321155
    Abstract: Provided is a video encoding method including: performing padding outside an input image such that a size of the input image is a multiple of a maximum coding unit; when a current maximum coding unit includes a padding area generated via the padding, determining a coding unit by splitting the current maximum coding unit by using a boundary of the input image and the padding area; determining information indicating whether a coding unit included in the padding area includes a nonzero coefficient to be 0; and encoding a bitstream including the determined information.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: June 11, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ki-won Yoo, Jae-moon Kim, Sang-kwon Na
  • Patent number: 10313699
    Abstract: A video decoding method includes obtaining a motion vector of a current block belonging to a first picture from a bitstream, performed by a first decoding unit; determining whether a reference block indicated by the motion vector is decoded, performed by the first decoding unit; and decoding the current block, based on whether the reference block is decoded. The reference block is included in a second picture decoded by a second decoding unit. The first picture and the second picture are decoded in parallel.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: June 4, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-ju Chun, Chan-sik Park, Ki-won Yoo, Jae-moon Kim
  • Publication number: 20190153117
    Abstract: Disclosed are epitopes of the epidermal growth factor receptor (EGFR) and the use thereof. The epitopes are highly preserved, and located in the domain closely related to binding with an epidermal growth factor (EGF). Therefore, vaccine compositions comprising the epitopes or compositions comprising antibodies to the epitopes may efficiently block a signal transduction caused by binding of EGF and EGRF, and thus can be highly valuably used in treating various diseases such as cancer. An antibody bound to the epitopes of the present invention may efficiently inhibit binding of various EGFR ligands such as not only EGF but also TGF-?, AR, BTC, EPR and HB-EGF, with EGFR, and therefore can be used in treating various diseases resulting from an activation of EGFR caused by binding not only with EGF but also with other EGFR ligands.
    Type: Application
    Filed: January 28, 2019
    Publication date: May 23, 2019
    Applicants: GREEN CROSS CORPORATION, MOGAM BIOTECHNOLOGY RESEARCH INSTITUTE
    Inventors: Se-Ho Kim, Kwang-Won Hong, Ki-Hwan Chang, Min-Soo Kim, Mi-Jung Lee, Jong-Hwa Won, Min-Kyu Hur, Hyun-Soo Cho, Ji-Ho Yoo
  • Publication number: 20190158926
    Abstract: A device may receive a request associated with adjusting the media output level of a sink device that is configured to output media content. The device may identify a source gain of a source device that is configured to provide the media content to the sink device, and a sink gain of the sink device. The device may identify a sink adjustment value for changing the sink gain based on the request for adjusting the media output level of the sink device, the source gain, and the sink gain. The device may transmit, to the sink device, a control signal to permit the sink gain to be changed based on the sink adjustment value. The media output level of the sink device is based on the source gain and the sink gain.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 23, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo Seok KANG, Doo Hyun KIM, Sang Kwon NA, Ki Won YOO, Chul Woo LEE, Jin Joo CHUNG, Doo Chan HWANG
  • Patent number: 10291915
    Abstract: A video encoding method includes: receiving an image; up-sampling the received image; and changing a sample value of an up-sampling region included in the up-sampled image and encoding the up-sampled image by using the changed sample value, wherein the up-sampling region is a region inserted into the received image by the up-sampling.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: May 14, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-moon Kim, Ki-won Yoo, Chang-su Han, Sang-kwon Na, Hyung-ju Chun
  • Patent number: 10277917
    Abstract: An image encoding method includes generating symbols by performing transformation and quantization according to a transformation block, on a block that performs prediction according to a prediction mode; updating a probability index of a current sub block by using a probability index of a previous sub block among sub blocks included in the transformation block; determining a rate according to a bit length of the current sub block by using the probably index; determining a rate of the transformation block by using rates of the sub blocks; determining a distortion by using a difference between an original image and a reconstruction image according to transformation and quantization; and determining a rate-distortion (R-D) cost by using the distortion and the rate.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: April 30, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sang-kwon Na, Soo-ik Chae, Ki-won Yoo, Soon-woo Choi, Woo-seok Jeong
  • Patent number: 10250879
    Abstract: A video encoding apparatus comprises an encoder encoding input video; a decoder decoding video data, and a filter to compensate for a pixel value of the encoded video data. An adaptive loop filter (ALF) parameter predictor generates an ALF filter parameter using the decoded video data. The ALF filter parameter is applied to an ALF filter to compensate a current pixel by using a pixel adjacent to the current pixel and a filter coefficient with respect to the neighboring pixel; a sample adaptive offset (SAO) filter unit applied to the decoded video data compensates for a current pixel by using at least one of an edge offset and a band offset; an ALF filter unit applies the ALF filter parameter, the ALF filter to video data to which the SAO filter has been applied; and an entropy encoder performs entropy encoding on the ALF filter parameter.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: April 2, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-dae Kim, Ki-won Yoo, Jae-moon Kim, Sang-kwon Na
  • Patent number: 10244247
    Abstract: Provided are a method and an apparatus for decoding an image by accessing a memory by a block group. The method comprises checking information regarding a size of one or more blocks included in a bitstream of an encoded image, determining whether to group one or more blocks for performing decoding, based on the information regarding the size of the one or more blocks, setting a block group including one or more blocks based on the information regarding the size of the one or more blocks, and accessing a memory by the block group to perform a parallel-pipeline decoding process by the block group.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: March 26, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chan-sik Park, Myung-ho Kim, Sang-kwon Na, Ki-won Yoo, Chang-su Han
  • Publication number: 20190052873
    Abstract: An image processing apparatus includes a content interface, a communication interface and a controller configured to receive content from a content source through the content interface, encode image frames comprised in the content according to an encoding mode, and transmit the encoded image frames to a display apparatus through the communication interface. The controller encodes the image frames according to a first encoding option in a first encoding mode and encodes the image frames according to a second encoding option having a different encoding time delay from that of the first encoding option in a second encoding mode.
    Type: Application
    Filed: August 8, 2018
    Publication date: February 14, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo Seok KANG, Min Yong SUNG, Ki Won YOO
  • Patent number: 10154263
    Abstract: Provided is a video encoding method including: calculating a difference value between a rate-distortion (R-D) cost of a first coefficient level from among coefficient levels of a sub-block and an R-D cost of a second coefficient level adjacent to the first coefficient level by using a distortion difference calculated by using an integer of the first coefficient level and an integer of the second coefficient level and a rate variation between the first coefficient level and the second coefficient level; selecting one of the integer values of the first and second coefficient levels as a modified value of the first coefficient level based on the difference value; and outputting the modified value of the first coefficient level.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: December 11, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sang-kwon Na, Soo-ik Chae, Ki-won Yoo, Soon-woo Choi, Wook-seok Jeong
  • Publication number: 20180124412
    Abstract: A processing apparatus has a processor including a first memory. The processor divides a frame in video content into a plurality of coding units (CUs), and encodes the plurality of CUs in a diagonal direction to generate an encoded frame, wherein when a first CU is encoded based on a first encoding type, the processor is further configured to load, from a second memory, a first partial region of a reference frame corresponding to first position information of the first CU to the first memory and encode the first CU based on the first partial region of the reference frame loaded from the second memory, and wherein, when the first CU is encoded based on a second encoding type, the processor is further configured to encode the first CU based on a first reference pixel value corresponding to the first position information of the first CU from the first memory.
    Type: Application
    Filed: September 27, 2017
    Publication date: May 3, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-kwon NA, Ki-won YOO, Doo-hyun KIM
  • Publication number: 20180109702
    Abstract: An image processing apparatus is provided. The image processing apparatus includes a signal processor and a controller. The signal processor processes an image signal including a plurality of color components. The controller controls the signal processor to perform a color gamut conversion, a domain transform, a quantization processing and an encoding processing with respect to an input image signal, and in response to differences between the color components of the image signal being less than a first critical level, to not perform the color gamut conversion.
    Type: Application
    Filed: August 25, 2017
    Publication date: April 19, 2018
    Inventors: Sang-kwon NA, Doo-hyun KIM, Ki-won YOO
  • Patent number: 9936223
    Abstract: Provided are a method and a device for encoding a video to improve an intra prediction processing speed, and a method and a device for decoding the video. The method for encoding a video performs parallel intra prediction and includes: obtaining, by using pixels of peripheral blocks processed prior to a plurality of adjacent blocks, reference pixels used for intra prediction of each of the plurality of adjacent blocks; performing, by using the obtained reference pixels, intra prediction in parallel for each of the plurality of adjacent blocks; and adding reference pixel syntax information to a bitstream.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: April 3, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-kwon Na, Ki-won Yoo, Jae-Hyun Kim, Kyo-hyuk Lee
  • Publication number: 20170310976
    Abstract: Provided is a video decoding method for reconstructing an image, the video decoding method including: obtaining reference image data from a bitstream; determining an attribute of the reference image data as a long-term reference attribute or a short-term reference attribute, according to a frequency of referring to the reference image data by image data to be decoded; storing the reference image data in a memory by using the attribute of the reference image data; and decoding an image by using the reference image data stored in the memory.
    Type: Application
    Filed: September 23, 2015
    Publication date: October 26, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-kwon NA, Sung-oh KIM, Jae-moon KIM, Ki-won YOO
  • Patent number: 9762908
    Abstract: Provided are a method and apparatus for encoding a video and a method and apparatus for decoding a video. The method of encoding includes: determining, for a current block, bidirectional motion estimation information comprising an L0 motion vector, an L1 motion vector, an L0 reference vector, and an L1 reference picture by performing bidirectional motion estimation on the current block; determining whether to use the determined bidirectional motion estimation information as prediction information of the current block based on whether the L0 reference picture and the L1 reference picture are the same and based on a difference value between the L0 motion vector and the L1 motion vector; and in response to determining to use the determined bidirectional motion estimation information as the prediction information of the current block, encoding the determined bidirectional motion estimation information as the prediction information of the current block.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: September 12, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-moon Kim, Ki-won Yoo, Jae-Hyun Kim, Kyo-hyuk Lee
  • Publication number: 20170251220
    Abstract: A video decoding method includes obtaining a motion vector of a current block belonging to a first picture from a bitstream, performed by a first decoding unit; determining whether a reference block indicated by the motion vector is decoded, performed by the first decoding unit; and decoding the current block, based on whether the reference block is decoded. The reference block is included in a second picture decoded by a second decoding unit. The first picture and the second picture are decoded in parallel.
    Type: Application
    Filed: October 7, 2015
    Publication date: August 31, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-ju CHUN, Chan-sik PARK, Ki-won YOO, Jae-moon KIM
  • Publication number: 20170223352
    Abstract: A video encoding apparatus comprises an encoder encoding input video; a decoder decoding video data, and a filter to compensate for a pixel value of the encoded video data. An adaptive loop filter (ALF) parameter predictor generates an ALF filter parameter using the decoded video data. The ALF filter parameter is applied to an ALF filter to compensate a current pixel by using a pixel adjacent to the current pixel and a filter coefficient with respect to the neighboring pixel; a sample adaptive offset (SAO) filter unit applied to the decoded video data compensates for a current pixel by using at least one of an edge offset and a band offset; an ALF filter unit applies the ALF filter parameter, the ALF filter to video data to which the SAO filter has been applied; and an entropy encoder performs entropy encoding on the ALF filter parameter.
    Type: Application
    Filed: June 29, 2015
    Publication date: August 3, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-dae KIM, Ki-won YOO, Jae-moon KIM, Sang-kwon NA
  • Publication number: 20170155922
    Abstract: Provided is a video encoding method including: performing padding outside an input image such that a size of the input image is a multiple of a maximum coding unit; when a current maximum coding unit includes a padding area generated via the padding, determining a coding unit by splitting the current maximum coding unit by using a boundary of the input image and the padding area; determining information indicating whether a coding unit included in the padding area includes a nonzero coefficient to be 0; and encoding a bitstream including the determined information.
    Type: Application
    Filed: June 26, 2015
    Publication date: June 1, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ki-won YOO, Jae-moon KIM, Sang-kwon NA
  • Publication number: 20170150165
    Abstract: A decoding apparatus and a decoding method thereof are provided. The decoding apparatus includes a memory configured to store a reference image frame of a first definition that is decoded from a bit stream. The decoding apparatus further includes a decoder configured to determine, form the bit stream, a motion vector of a current block of a current image frame of a second definition, correct a size of the motion vector and a location of the current block based on a scaling factor, load, from the memory, a reference block that is the corrected motion vector away from the corrected location of the current block in the reference image frame, and decode the current image frame based on the reference block.
    Type: Application
    Filed: April 27, 2016
    Publication date: May 25, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-kwon NA, Myung-ho KIM, Chan-sik PARK, Ki-won YOO, Chang-su HAN