Patents by Inventor Woo Shik Kim

Woo Shik 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).

  • Publication number: 20190188663
    Abstract: Provided are a method of relaying, by a payment gateway server, a payment using a representative card connected to a plurality of general cards, the method comprising steps of: (a) acquiring card information of a card set as a payment card among the plurality of general cards connected to the representative card when a payment approval is requested using the representative card; and (b) requesting the payment approval to a card company server using the acquired card information of the payment card and processing such that the payment approval made using the payment card is completed.
    Type: Application
    Filed: February 8, 2018
    Publication date: June 20, 2019
    Inventors: Jong Yoon KIM, Woo Kyung CHANG, Bom Shik KIM, Joo Yun LEE, Myeong Suk CHOI, Dong Chul KIM, Sang Ok KIM, Bo Rim LEE, Jae Kyung LEE
  • Publication number: 20190158857
    Abstract: A method and apparatus for image coding using hierarchical sample adaptive band offset. The method includes decoding a signal of a portion of an image, determining a band offset type and offset of a portion of the image, utilizing the band offset type and offset to determine a sub-band, and reconstructing a pixel value according to the determined offset value.
    Type: Application
    Filed: January 23, 2019
    Publication date: May 23, 2019
    Inventors: Woo-Shik Kim, Do-Kyoung Kwon
  • Publication number: 20190158851
    Abstract: A coding method including dividing pixels of a chrominance component of an input image into blocks having a predetermined size; selecting one among a direct current prediction method, a vertical prediction method, a horizontal prediction method, and a hybrid prediction method according to a user's input; generating a prediction value of each pixel in a current block to be predictively coded, using at least one pixel value among pixel values in an upper reference block adjacent to the current block and in a side reference block adjacent to the current block, according to the selected prediction method; generating a differential value between the prediction value and a corresponding real pixel value in the current block; and coding the differential value and information on the selected prediction method using a predetermined coding method.
    Type: Application
    Filed: January 28, 2019
    Publication date: May 23, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo-shik KIM, Chang-yeong KIM, Yang-seock SEO
  • Patent number: 10298963
    Abstract: A method and apparatus for sample adaptive offset without sign coding. The method includes selecting an edge offset type for at least a portion of an image, classifying at least one pixel of at least the portion of the image into edge shape category, calculating an offset of the pixel, determining the offset is larger or smaller than a predetermined threshold, changing a sign of the offset based on the threshold determination; and performing entropy coding accounting for the sign of the offset and the value of the offset.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: May 21, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Woo-Shik Kim, Do-Kyoung Kwon
  • Patent number: 10230962
    Abstract: A coding method including dividing pixels of a chrominance component of an input image into blocks having a predetermined size; selecting one among a direct current prediction method, a vertical prediction method, a horizontal prediction method, and a hybrid prediction method according to a user's input; generating a prediction value of each pixel in a current block to be predictively coded, using at least one pixel value among pixel values in an upper reference block adjacent to the current block and in a side reference block adjacent to the current block, according to the selected prediction method; generating a differential value between the prediction value and a corresponding real pixel value in the current block; and coding the differential value and information on the selected prediction method using a predetermined coding method.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: March 12, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo-shik Kim, Chang-yeong Kim, Yang-seock Seo
  • Patent number: 10194159
    Abstract: A method and apparatus for image coding using hierarchical sample adaptive band offset. The method includes decoding a signal of a portion of an image, determining a band offset type and offset of a portion of the image, utilizing the band offset type and offset to determine a sub-band, and reconstructing a pixel value according to the determined offset value.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: January 29, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Woo-Shik Kim, Do-Kyoung Kwon
  • Publication number: 20180376168
    Abstract: A method for sample adaptive offset (SAO) filtering and SAO parameter signaling in a video encoder is provided that includes determining SAO parameters for largest coding units (LCUs) of a reconstructed picture, wherein the SAO parameters include an indicator of an SAO filter type and a plurality of SAO offsets, applying SAO filtering to the reconstructed picture according to the SAO parameters, and entropy encoding LCU specific SAO information for each LCU of the reconstructed picture in an encoded video bit stream, wherein the entropy encoded LCU specific SAO information for the LCUs is interleaved with entropy encoded data for the LCUs in the encoded video bit stream. Determining SAO parameters may include determining the LCU specific SAO information to be entropy encoded for each LCU according to an SAO prediction protocol.
    Type: Application
    Filed: August 6, 2018
    Publication date: December 27, 2018
    Inventors: Vivienne Sze, Madhukar Budagavi, Woo-Shik Kim, Do-Kyoung Kwon, Minhua Zhou
  • Publication number: 20180338142
    Abstract: A method for sample adaptive offset (SAO) filtering in a video encoder is provided that includes estimating SAO parameters for color components of a largest coding unit (LCU) of a picture, wherein estimating SAO parameters includes using at least some non-deblock-filtered reconstructed pixels of the LCU to estimate the SAO parameters, performing SAO filtering on the reconstructed LCU according to the estimated SAO parameters, and entropy encoding SAO information for the LCU in a compressed video bit stream, wherein the SAO information signals the estimated SAO parameters for the LCU.
    Type: Application
    Filed: July 30, 2018
    Publication date: November 22, 2018
    Inventors: Woo-Shik Kim, Madhukar Budagavi, Minhua Zhou
  • Patent number: 10085027
    Abstract: A video encoding device comprises a memory configured and at least one processor configured to: determine whether a metric meets a condition based on statistics, wherein the statistics are associated with a first video encoding mode checking order and a second video encoding mode checking order, responsive to determining that the metric meets the condition, select a first encoding mode checking order to encode the first block of video data responsive to determining that the condition is not met, select a second encoding mode checking order different from the first encoding mode checking order to encode the first block of video data, update the statistics based on the selected first or second encoding mode checking order, and encode a second block of video data, based on the updated statistics, and using the first or second mode checking order.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: September 25, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Chengjie Tu, Wei-Jung Chien, Xianglin Wang, Jaehong Chon, In Suk Chong, Marta Karczewicz, Woo-Shik Kim, Xin Zhao
  • Patent number: 10070152
    Abstract: A method for sample adaptive offset (SAO) filtering and SAO parameter signaling in a video encoder is provided that includes determining SAO parameters for largest coding units (LCUs) of a reconstructed picture, wherein the SAO parameters include an indicator of an SAO filter type and a plurality of SAO offsets, applying SAO filtering to the reconstructed picture according to the SAO parameters, and entropy encoding LCU specific SAO information for each LCU of the reconstructed picture in an encoded video bit stream, wherein the entropy encoded LCU specific SAO information for the LCUs is interleaved with entropy encoded data for the LCUs in the encoded video bit stream. Determining SAO parameters may include determining the LCU specific SAO information to be entropy encoded for each LCU according to an SAO prediction protocol.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: September 4, 2018
    Assignee: Texas Instruments Incorporated
    Inventors: Vivienne Sze, Woo-Shik Kim, Madhukar Budagavi, Do-Kyoung Kwon, Minhua Zhou
  • Publication number: 20180220145
    Abstract: An image encoding and decoding apparatus and method, the image encoding and decoding apparatus includes: an encoding unit adjusting at least one weight value adaptively to the number of bits expressing each pixel of a current image, predicting a pixel value of a block of interest by performing an operation on a pixel value of at least one block having a pixel value similar to the pixel value of the block of interest among blocks included in a previous image and the at least one adjusted weight value, and encoding the pixel value of the block of interest using the predicted pixel value of the block of interest; and a decoding unit adjusting the at least one weight value adaptively to the number of bits, restoring the predicted pixel value of the block of interest by performing an operation on the pixel value of the at least one block having the pixel value similar to the pixel value of the block of interest among blocks included in the restored previous image and the at least one adjusted weight value, and dec
    Type: Application
    Filed: March 28, 2018
    Publication date: August 2, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyun Mun KIM, Dae-sung CHO, Woo-shik KIM
  • Patent number: 10038903
    Abstract: A method for sample adaptive offset (SAO) filtering in a video encoder is provided that includes estimating SAO parameters for color components of a largest coding unit (LCU) of a picture, wherein estimating SAO parameters includes using at least some non-deblock-filtered reconstructed pixels of the LCU to estimate the SAO parameters, performing SAO filtering on the reconstructed LCU according to the estimated SAO parameters, and entropy encoding SAO information for the LCU in a compressed video bit stream, wherein the SAO information signals the estimated SAO parameters for the LCU.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: July 31, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Woo-Shik Kim, Madhukar Budagavi, Minhua Zhou
  • Patent number: 10034000
    Abstract: A method, medium, and system encoding and/or decoding a moving picture. The moving picture encoding method may include selecting a prediction mode that is optimal for the macro blocks, which correspond to each other, of the color components of a current image based on the characteristics of a predetermined image, generating a predicted image for the current image according to the selected prediction mode, and encoding a moving picture using the predicted image. An optimal prediction mode can be adaptively applied to the macro blocks, which correspond to each other, of the color components, thereby increasing the moving picture's encoding and decoding efficiencies.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: July 24, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo-shik Kim, Hyun-mun Kim, Dae-sung Cho, Dmitri Birinov, Dae-hee Kim, Woong-il Choi
  • Patent number: 10015515
    Abstract: Techniques coding video data, including a mode for intra prediction of blocks of video data from predictive blocks of video data within the same picture, may include determining a predictive block of video data for the current block of video data, wherein the predictive block of video data is a reconstructed block of video data within the same picture as the current block of video data. A two-dimensional vector, which may be used by a video coder to identify the predictive block of video data, includes a horizontal displacement component and a vertical displacement component relative to the current block of video data. The mode for intra prediction of blocks of video data from predictive blocks of video data within the same picture may be referred to as Intra Block Copy or Intra Motion Compensation.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: July 3, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Liwei Guo, Chao Pang, Woo-Shik Kim, Wei Pu, Joel Sole Rojals, Rajan Laxman Joshi, Marta Karczewicz
  • Publication number: 20180139430
    Abstract: A method, medium, and apparatus encoding and/or decoding an image in order to increase encoding and decoding efficiency by performing binary-arithmetic coding/decoding on a binary value of a syntax element using a probability model having the same syntax element probability value for respective context index information of each of at least two image components.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 17, 2018
    Applicant: Samsung electronics Co., Ltd
    Inventors: Dae-sung CHO, Hyun-mun KIM, Woo-shik KIM, Dmitri Birinov
  • Patent number: 9961356
    Abstract: An image encoding and decoding apparatus and method, the image encoding and decoding apparatus includes: an encoding unit adjusting at least one weight value adaptively to the number of bits expressing each pixel of a current image, predicting a pixel value of a block of interest by performing an operation on a pixel value of at least one block having a pixel value similar to the pixel value of the block of interest among blocks included in a previous image and the at least one adjusted weight value, and encoding the pixel value of the block of interest using the predicted pixel value of the block of interest; and a decoding unit adjusting the at least one weight value adaptively to the number of bits, restoring the predicted pixel value of the block of interest by performing an operation on the pixel value of the at least one block having the pixel value similar to the pixel value of the block of interest among blocks included in the restored previous image and the at least one adjusted weight value, and dec
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: May 1, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Mun Kim, Dae-sung Cho, Woo-shik Kim
  • Patent number: 9948933
    Abstract: In general, this disclosure describes techniques for coding video blocks using a color-space conversion process. A video coder, such as a video encoder or a video decoder, may determine whether to use color-space conversion for a coding unit and set a value of a syntax element of the coding unit to indicate the use of color-space conversion. The video coder may apply a color-space transform process in encoding the coding unit. The video coder may decode the syntax element of the coding unit. The video coder may determine whether a value of the syntax element indicates that the coding unit was encoded using color-space conversion. The video coder may apply a color-space inverse transform process in decoding the coding unit in response to determining that the syntax element indicates that the coding unit was coded using color-space conversion.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: April 17, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Li Zhang, Jianle Chen, Marta Karczewicz, Joel Sole Rojals, Woo-Shik Kim
  • Publication number: 20180084258
    Abstract: A coding method including dividing pixels of a chrominance component of an input image into blocks having a predetermined size; selecting one among a direct current prediction method, a vertical prediction method, a horizontal prediction method, and a hybrid prediction method according to a user's input; generating a prediction value of each pixel in a current block to be predictively coded, using at least one pixel value among pixel values in an upper reference block adjacent to the current block and in a side reference block adjacent to the current block, according to the selected prediction method; generating a differential value between the prediction value and a corresponding real pixel value in the current block; and coding the differential value and information on the selected prediction method using a predetermined coding method.
    Type: Application
    Filed: December 1, 2017
    Publication date: March 22, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo-shik KIM, Chang-yeong KIM, Yang-seock SEO
  • Patent number: 9906790
    Abstract: The disclosure describes deblock filtering techniques. A video coder may determine an amount by which to deblock filter a pixel value of a pixel based on a geometrical distance from the pixel to a boundary and a pixel value difference between pixel values of at least two pixels. The video coder may then deblock filter the pixel based on the determined amount.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: February 27, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Woo-Shik Kim, Jianle Chen, Joel Sole Rojals, Marta Karczewicz
  • Patent number: 9883187
    Abstract: A video encoding device comprises a memory configured to store video data and at least one processor configured to: select one of a full rate-distortion (RD) checking scheme or a fast RD checking scheme, determine an RD cost associated with encoding a block of the video data based on the selected full RD checking scheme or fast RD checking scheme, determine a partitioning scheme for the block based on the determined RD cost, and encode the block using the determined partitioning scheme based on the determined RD cost.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: January 30, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Chengjie Tu, Wei-Jung Chien, Xianglin Wang, Jaehong Chon, In Suk Chong, Marta Karczewicz, Woo-Shik Kim, Xin Zhao