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: 20200154146
    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: January 13, 2020
    Publication date: May 14, 2020
    Inventors: Vivienne Sze, Madhukar Budagavi, Woo-Shik Kim, Do-Kyoung Kwon, Minhua Zhou
  • Patent number: 10602172
    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: March 28, 2018
    Date of Patent: March 24, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Mun Kim, Dae-sung Cho, Woo-shik Kim
  • Patent number: 10536722
    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 6, 2018
    Date of Patent: January 14, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Vivienne Sze, Madhukar Budagavi, Woo-Shik Kim, Do-Kyoung Kwon, Minhua Zhou
  • Patent number: 10484691
    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: January 28, 2019
    Date of Patent: November 19, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo-shik Kim, Chang-yeong Kim, Yang-seock Seo
  • Patent number: 10455210
    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: Grant
    Filed: December 28, 2017
    Date of Patent: October 22, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae-sung Cho, Hyun-mun Kim, Woo-shik Kim, Dmitri Birinov
  • Patent number: 10412419
    Abstract: Performing deblock filtering on video data may include determining, for a first non-luma color component of the video data, whether to perform deblock filtering based on a first deblock filtering process or a second deblock filtering process. Next, deblock filtering may be performed on the first non-luma color component in accordance with the determined deblock filtering process.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: September 10, 2019
    Assignee: Qualcomm Incorporated
    Inventors: Woo-Shik Kim, Joel Sole Rojals, Marta Karczewicz
  • Publication number: 20190273949
    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: Application
    Filed: May 20, 2019
    Publication date: September 5, 2019
    Inventors: Woo-Shik Kim, Do-Kyoung Kwon
  • Patent number: 10397607
    Abstract: A method of decoding video data includes decoding a first block of video data to produce a block of reconstructed luma residual values and a block of predicted chroma residual values, wherein the block of video data has one of a 4:2:0 or a 4:2:2 chroma sub-sampling format. The method further includes performing a color residual prediction process to reconstruct a block of chroma residual values for the first block of video data using a subset of the reconstructed luma residual values as luma predictors for the block of predicted chroma residual values.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: August 27, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Woo-Shik Kim, Wei Pu, Jianle Chen, Joel Sole Rojals, Liwei Guo, Marta Karczewicz
  • Publication number: 20190197539
    Abstract: Provided is a method of providing, by a card company server, a card service for setting a condition of card use, the method including steps of: (a) providing a user terminal with a button type interface for setting a condition of card use with respect to at least one of a use range and a use amount of a card owned by a user; (b) processing such that the condition of card use selected through the interface is set; and (c) processing such that payment approval for the owned card is completed on the basis of the set condition of card use when the payment approval is requested.
    Type: Application
    Filed: April 27, 2018
    Publication date: June 27, 2019
    Inventors: Woo Kyung CHANG, Bom Shik KIM, Hyun Jung KIM, Jin Hee PARK
  • Patent number: 10334253
    Abstract: This disclosure provides systems, methods and apparatus for sample adaptive offset (SAO) scaling. For example, the apparatus may include a processor configured to determine an offset value for an SAO filter applied to video data to improve reconstruction of signal amplitudes in the video data. The processor may be further configured to determine a first value indicative of a bit depth and a second value indicative of a scale factor for the video data, to provide a scaled offset value based on applying the scale factor to the offset value, and to scale at least one color component of the video data according to the scaled offset value. The processor may also be configured to identify an edge offset category for a scaled group of neighboring pixel values, and to adjust the SAO filter based on the identified edge offset category.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: June 25, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Woo-Shik Kim, Joel Sole Rojals, Rajan Laxman Joshi, Marta Karczewicz
  • 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: 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
  • 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
  • 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