Patents by Inventor Joo Young Kim

Joo Young Kim 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).

  • Image encoding and decoding method supporting plurality of layers and apparatus using same
    Patent number: 10200702
    Abstract: An image decoding method supporting a plurality of layers according to the present invention may comprise the steps of: when an initial reference picture list of a current picture is configured, receiving flag information indicating whether reference picture set information of a reference layer to which the current picture refers is used; generating the initial reference picture list on the basis of the flag information; and predicting the current picture on the basis of the initial reference picture list. Accordingly, the present invention provides a method for generating a reference picture list including a picture of a layer, which is different from a layer to be currently encoded and decoded, and an apparatus using the same.
    Type: Grant
    Filed: December 30, 2017
    Date of Patent: February 5, 2019
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Joo Young Kim
  • Method and apparatus for transmitting data in wireless LAN system
    Patent number: 10187822
    Abstract: Disclosed are a method and an apparatus for transmitting data in a wireless LAN system. The method for transmitting data comprises the steps of: generating a discontinuation request frame for requesting discontinuation of transmitting a data frame from a master-access point to a relay device; and transmitting the discontinuation request frame to the master-access point. As a result, the occurrence of a buffer overflow in the relay device can be prevented.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: January 22, 2019
    Assignee: KT Corporation
    Inventors: Yang Seok Jeong, Joo Young Kim
  • Method and apparatus for encoding/decoding multilayer video signal
    Patent number: 10187641
    Abstract: A method for decoding a multilayer video signal, according to the present invention, is characterized by: inducing the number of active references of a current picture in consideration of whether the maximum number of active reference pictures of the current picture in a current layer is limited; obtaining a reference layer identifier based on the number of active references; determining an active reference picture of the current picture using a reference layer identifier; generating an interlayer reference picture by upsampling the active reference picture, and performing interlayer prediction of the current picture using an interlayer reference picture.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: January 22, 2019
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Joo Young Kim
  • Method and device for processing multi-view video signal
    Patent number: 10187658
    Abstract: The present invention provides a method and apparatus for processing a multi-view video signal, the method including: determining a prediction mode of a current depth block; determining a partition mode of the current texture block when the current texture block is a block encoded in an inter mode; obtaining a motion vector of each partition based on the partition mode; and performing inter prediction on the current texture block by using the motion vector through depth-based.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: January 22, 2019
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Joo Young Kim
  • Method for inducing a merge candidate block and device using same
    Patent number: 10182237
    Abstract: The present invention relates to a method for inducing a merge candidate block and a device using same. An image decoding method involves decoding motion estimation region (MER) related information; determining whether or not a predicted target block and a spatial merge candidate block are included in the same MER; and determining the spatial merge candidate block to be an unavailable merge candidate block when the predicted target block and the spatial merge candidate block are included in the same MER. Accordingly, by parallely performing the method for inducing a merge candidate, parallel processing is enabled and the computation amount and implementation complexity are reduced.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: January 15, 2019
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Jae Cheol Kwon, Joo Young Kim
  • Method and apparatus for encoding/decoding multilayer video signal
    Patent number: 10178392
    Abstract: A method for decoding a multilayer video signal, according to the present invention, is characterized by: inducing the number of active references of a current picture, in consideration of whether the maximum number of active reference pictures of the current picture in a current layer is limited; obtaining a reference layer identifier based on the number of active references, determining an active reference picture of the current picture using a reference layer identifier, generating a reference picture list including the active reference pictures, and performing interlayer prediction of the current picture using the reference picture list.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: January 8, 2019
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Joo Young Kim
  • Method for inducing a merge candidate block and device using same
    Patent number: 10165294
    Abstract: The present invention relates to a method for inducing a merge candidate block and a device using same. An image decoding method involves decoding motion estimation region (MER) related information; determining whether or not a predicted target block and a spatial merge candidate block are included in the same MER; and determining the spatial merge candidate block to be an unavailable merge candidate block when the predicted target block and the spatial merge candidate block are included in the same MER. Accordingly, by parallely performing the method for inducing a merge candidate, parallel processing is enabled and the computation amount and implementation complexity are reduced.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: December 25, 2018
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Jae Cheol Kwon, Joo Young Kim
  • Method for inducing a merge candidate block and device using same
    Patent number: 10165295
    Abstract: The present invention relates to a method for inducing a merge candidate block and a device using same. An image decoding method involves decoding motion estimation region (MER) related information; determining whether or not a predicted target block and a spatial merge candidate block are included in the same MER; and determining the spatial merge candidate block to be an unavailable merge candidate block when the predicted target block and the spatial merge candidate block are included in the same MER. Accordingly, by parallely performing the method for inducing a merge candidate, parallel processing is enabled and the computation amount and implementation complexity are reduced.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: December 25, 2018
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Jae Cheol Kwon, Joo Young Kim
  • Method and apparatus for intra prediction within display screen
    Patent number: 10158862
    Abstract: The present invention relates to a method and apparatus for intra prediction. The intra prediction method for a decoder, according to the present invention, comprises the steps of entropy-decoding a received bitstream, generating reference pixels to be used in the intra prediction of a prediction unit; generating a prediction block from the reference pixels on the basis of a prediction mode for the prediction unit and reconstructing an image from the prediction block and a residual block, which is obtained as a result of entropy encoding, wherein the reference pixels and/or the prediction block pixels are predicted on the basis of a base pixel, and the predicted pixel value can be the sum of the pixel value of the base pixel and the difference between the pixel values of the base pixel and the generated pixel.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: December 18, 2018
    Assignee: KT CORPORATION
    Inventors: Jae Cheol Kwon, Joo Young Kim
  • Image encoding and decoding method supporting plurality of layers and apparatus using same
    Patent number: 10154259
    Abstract: An image decoding method supporting a plurality of layers according to the present invention may comprise the steps of: receiving location information on a location in which an inter-layer reference picture set for one or more reference layers, to which a current picture can refer, is added to a reference picture list; generating an initial reference picture list including the inter-layer reference picture set on the basis of the location information; and predicting the current picture on the basis of the initial reference picture list. Accordingly, the present invention provides a method for signaling location information on a location in which an inter-layer reference picture is added to a reference picture list, and an apparatus using the same.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: December 11, 2018
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Joo Young Kim
  • Scalable video signal encoding/decoding method and apparatus
    Patent number: 10148949
    Abstract: A scalable video signal decoding method according to the present invention decodes a corresponding picture of a reference layer corresponding to a current picture of a current layer, generates an inter-layer reference picture by up-sampling the decoded corresponding picture, generates a reference picture list including a temporal reference picture and an inter-layer reference picture, and inter-predicting the current picture on the basis of the generated reference picture list.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: December 4, 2018
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Joo Young Kim
  • Image encoding and decoding method supporting plurality of layers and apparatus using same
    Patent number: 10148952
    Abstract: An image decoding method supporting a plurality of layers according to the present invention may comprise the steps of: generating an inter-layer reference picture set with respect to one or more reference layers to which a current picture can refer; generating an initial reference picture list including the inter-layer reference picture set; and predicting the current picture on the basis of the initial reference picture list. Accordingly, the present invention provides a method for generating a reference picture list including a picture of a layer, which is different from a layer to be currently encoded and decoded, and an apparatus using the same.
    Type: Grant
    Filed: December 30, 2017
    Date of Patent: December 4, 2018
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Joo Young Kim
  • Image encoding and decoding method supporting plurality of layers and apparatus using same
    Patent number: 10148950
    Abstract: An image decoding method supporting a plurality of layers according to the present invention may comprise the steps of: generating an inter-layer reference picture set with respect to one or more reference layers to which a current picture can refer; generating an initial reference picture list including the inter-layer reference picture set; and predicting the current picture on the basis of the initial reference picture list. Accordingly, the present invention provides a method for generating a reference picture list including a picture of a layer, which is different from a layer to be currently encoded and decoded, and an apparatus using the same.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: December 4, 2018
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Joo Young Kim
  • METHOD AND SYSTEM FOR DETECTING DANGEROUS SITUATION
    Publication number: 20180342081
    Abstract: A method of detecting a dangerous situation includes obtaining a first image including a first object capable of generating a movement, by using a dynamic vision sensor (DVS); detecting, from the first image, a second image including the first object in a predefined pose; and determining whether a situation of the first object is the dangerous situation by analyzing the second image.
    Type: Application
    Filed: February 21, 2018
    Publication date: November 29, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joo-young KIM, Joon-ho KIM, Do-jun YANG, Hyun-woo LEE, Jong-hee HAN
  • SCALABLE VIDEO SIGNAL ENCODING/DECODING METHOD AND DEVICE
    Publication number: 20180343457
    Abstract: A scalable video signal decoding method according to the present invention determines, based on the temporal identifier of a lower layer, whether a corresponding picture of the lower layer is used as an inter-layer reference picture for the current picture of an upper layer, creates a list of reference pictures for the current picture based on the determination, and performs inter-layer prediction on the current block in the current picture based on the created list of reference pictures.
    Type: Application
    Filed: July 18, 2018
    Publication date: November 29, 2018
    Applicant: KT CORPORATION
    Inventors: Bae Keun LEE, Joo Young KIM
  • ADAPTIVE TRANSFORM METHOD BASED ON IN-SCREEN PREDICTION AND APPARATUS USING THE METHOD
    Publication number: 20180332285
    Abstract: Disclosed is an adaptive transform method based on an in-screen prediction, and an apparatus using the method. A method for encoding an image can comprise a step of determining in-screen prediction mode groups, and a step of transforming by using a different transform method according to the in-screen prediction mode group. As a result, transforming can be performed by applying the different transform method according to the in-screen prediction mode group.
    Type: Application
    Filed: July 23, 2018
    Publication date: November 15, 2018
    Applicant: KT CORPORATION
    Inventors: Bae Keun LEE, Jae Cheol KWON, Joo Young KIM
  • METHOD AND DEVICE FOR ENCODING/DECODING MULTI-LAYER VIDEO SIGNAL
    Publication number: 20180324445
    Abstract: A method for decoding a multi-layer video signal, according to the present invention, determines whether a corresponding picture in a lower layer is used as an inter-layer reference picture for a current picture in an upper layer, on the basis of a temporal level identifier of the lower layer, performs inter-layer prediction for the current picture by using the corresponding picture if the corresponding picture in the lower layer is used as the inter-layer reference picture for the current picture in the upper layer, reconstructs the current picture by using a prediction sample acquired through the inter-layer prediction and a residual sample of the current picture, and selectively applies a loop filter to a tile boundary of the reconstructed current picture on the basis of a layer filter flag for the upper layer.
    Type: Application
    Filed: July 16, 2018
    Publication date: November 8, 2018
    Applicant: KT CORPORATION
    Inventors: Bae Keun LEE, Joo Young KIM
  • Location estimation apparatus and method using combination of different positioning resources
    Patent number: 10123176
    Abstract: Disclosed herein are a location estimation apparatus and method using a combination of different positioning resources. The location estimation apparatus includes a motion model generation unit for generating a motion model corresponding to a state variable of a terminal based on a current time, a weight calculation unit for extracting a dynamic location database (DB) from a location DB based on multiple pieces of measurement information received from the terminal, and calculating a weight proportional to a likelihood of the multiple pieces of measurement information based on the dynamic location DB, and a location estimation unit for estimating a location and direction of the terminal by applying the weight to at least one sample value corresponding to the motion model.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: November 6, 2018
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young-Su Cho, Joo-Young Kim, Ju-Il Jeon, Myung-In Ji
  • Method of scanning access point
    Patent number: 10123261
    Abstract: A method of scanning an access point is disclosed. The method of scanning the access point includes creating a probe request frame including information created based on an identifier of an access point to be searched, and transmitting the probe request frame. Thus, it is possible to decrease the time and power consumed by a terminal when searching an access point.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: November 6, 2018
    Assignee: KT Corporation
    Inventors: Yang Seok Jeong, Joo Young Kim
  • METHOD AND DEVICE FOR ENCODING/DECODING MULTI-LAYER VIDEO SIGNAL
    Publication number: 20180309985
    Abstract: A method for decoding a multi-layer video signal, according to the present invention, determines whether a corresponding picture in a lower layer is used as an inter-layer reference picture for a current picture in an upper layer, on the basis of a time level identifier of the lower layer, and restrictively performs inter-layer prediction for the current picture on the basis of a tile boundary alignment flag indicating whether tile alignment is performed between the upper layer and the lower layer if the corresponding picture in the lower layer is used as the inter-layer reference picture for the current picture in the upper layer.
    Type: Application
    Filed: July 2, 2018
    Publication date: October 25, 2018
    Applicant: KT CORPORATION
    Inventors: Bae Keun LEE, Joo Young KIM