Patents by Inventor Byeung-Woo Jeon
Byeung-Woo Jeon 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).
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Publication number: 20200021828Abstract: The present invention relates to an image encoding/decoding method and device. The image decoding method according to the present invention comprises the steps of: decoding a prediction mode index; determining whether the prediction mode index indicates function-based intra prediction; inducing a parameter (s) for generating a function, when the prediction mode index indicates the function-based intra prediction; generating the function on the basis of the induced parameter (s); and performing intra prediction by using the generated function.Type: ApplicationFiled: November 27, 2017Publication date: January 16, 2020Inventors: Seung Hyun CHO, Jung Won KANG, Hyun Suk KO, Sung Chang LIM, Jin Ho mes LEE, Ha Hyun LEE, Dong San JUN, Hui Yong KIM, Byeung Woo JEON, Nam Uk KIM, Seung Su JEON, Jin Soo CHOI
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Publication number: 20190356929Abstract: Disclosed herein are a method and apparatus for filtering a reference pixel. A method of smoothing a reference pixel may include determining whether or not to perform smoothing on a reference pixel based on the size of a transform block and information about an intra-prediction mode for the transform block and determining a smoothing method by comparing the size of the transform block with the size of a maximum transform block. Accordingly, image coding efficiency can be increased, and picture quality can be improved.Type: ApplicationFiled: August 5, 2019Publication date: November 21, 2019Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Byeung Woo JEON, Ho Young LEE, Kwang Hyun WON
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Publication number: 20190297352Abstract: Disclosed are a method and an apparatus for image encoding/decoding. The method for image decoding includes comparing whether a size of a current transform block and a size of a smallest transform block (smallest transform unit (STU)) are the same as each other, and decoding information indicating whether transformation is performed on the current transform block and determining whether to perform inverse transformation on the current transform block based on the decoded information indicating whether the transformation is performed when the size of the current transform block and the size of a smallest transform block are the same as each other.Type: ApplicationFiled: June 14, 2019Publication date: September 26, 2019Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Byeung Woo JEON, Kwang Hyun WON
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Patent number: 10375414Abstract: Disclosed herein are a method and apparatus for filtering a reference pixel. A method of smoothing a reference pixel may include determining whether or not to perform smoothing on a reference pixel based on the size of a transform block and information about an intra-prediction mode for the transform block and determining a smoothing method by comparing the size of the transform block with the size of a maximum transform block. Accordingly, image coding efficiency can be increased, and picture quality can be improved.Type: GrantFiled: June 11, 2018Date of Patent: August 6, 2019Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Byeung Woo Jeon, Ho Young Lee, Kwang Hyun Won
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Patent number: 10368102Abstract: Disclosed are a method and an apparatus for image encoding/decoding. The method for image decoding includes comparing whether a size of a current transform block and a size of a smallest transform block (smallest transform unit (STU)) are the same as each other, and decoding information indicating whether transformation is performed on the current transform block and determining whether to perform inverse transformation on the current transform block based on the decoded information indicating whether the transformation is performed when the size of the current transform block and the size of a smallest transform block are the same as each other.Type: GrantFiled: February 2, 2018Date of Patent: July 30, 2019Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Byeung Woo Jeon, Kwang Hyun Won
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Patent number: 10368103Abstract: Disclosed are a method and an apparatus for image encoding/decoding. The method for image decoding includes comparing whether a size of a current transform block and a size of a smallest transform block (smallest transform unit (STU)) are the same as each other, and decoding information indicating whether transformation is performed on the current transform block and determining whether to perform inverse transformation on the current transform block based on the decoded information indicating whether the transformation is performed when the size of the current transform block and the size of a smallest transform block are the same as each other.Type: GrantFiled: February 2, 2018Date of Patent: July 30, 2019Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Byeung Woo Jeon, Kwang Hyun Won
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Patent number: 10368101Abstract: Disclosed are a method and an apparatus for image encoding/decoding. The method for image decoding includes comparing whether a size of a current transform block and a size of a smallest transform block (smallest transform unit (STU)) are the same as each other, and decoding information indicating whether transformation is performed on the current transform block and determining whether to perform inverse transformation on the current transform block based on the decoded information indicating whether the transformation is performed when the size of the current transform block and the size of a smallest transform block are the same as each other.Type: GrantFiled: February 2, 2018Date of Patent: July 30, 2019Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Byeung Woo Jeon, Kwang Hyun Won
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Publication number: 20190110044Abstract: An image decoding method and an image decoding apparatus is provided. The method comprises recovering a first motion vector corresponding to a first decoding reference picture based on the entropy decoded bit stream, calculating a second motion vector corresponding to a second decoding reference picture by scaling the first motion vector based on a first temporal distance between the current picture and the first decoding reference picture and a second temporal distance between the current picture and the second decoding reference picture, generating a prediction block relating to a current block in the current picture, based on the calculated second motion vector, generating a residual block relating to the current block through a residual data decoding process based on the entropy decoded bit stream, and recovering the current block based on the prediction block and the residual block.Type: ApplicationFiled: November 28, 2018Publication date: April 11, 2019Applicant: SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATIONInventors: Byeung Woo JEON, Bong Soo JUNG, Kwang Hyun WON
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Publication number: 20190098298Abstract: An image decoding method and an image decoding apparatus is provided. The method comprises recovering a first motion vector corresponding to a first decoding reference picture based on the entropy decoded bit stream, calculating a second motion vector corresponding to a second decoding reference picture by scaling the first motion vector based on a first temporal distance between the current picture and the first decoding reference picture and a second temporal distance between the current picture and the second decoding reference picture, generating a prediction block relating to a current block in the current picture, based on the calculated second motion vector, generating a residual block relating to the current block through a residual data decoding process based on the entropy decoded bit stream, and recovering the current block based on the prediction block and the residual block.Type: ApplicationFiled: November 28, 2018Publication date: March 28, 2019Applicant: SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATIONInventors: Byeung Woo JEON, Bong Soo JUNG, Kwang Hyun WON
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Publication number: 20190098297Abstract: An image decoding method and an image decoding apparatus is provided. The method comprises recovering a first motion vector corresponding to a first decoding reference picture based on the entropy decoded bit stream, calculating a second motion vector corresponding to a second decoding reference picture by scaling the first motion vector based on a first temporal distance between the current picture and the first decoding reference picture and a second temporal distance between the current picture and the second decoding reference picture, generating a prediction block relating to a current block in the current picture, based on the calculated second motion vector, generating a residual block relating to the current block through a residual data decoding process based on the entropy decoded bit stream, and recovering the current block based on the prediction block and the residual block.Type: ApplicationFiled: November 28, 2018Publication date: March 28, 2019Applicant: SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATIONInventors: Byeung Woo JEON, Bong Soo JUNG, Kwang Hyun WON
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Publication number: 20190098296Abstract: An image decoding method and an image decoding apparatus is provided. The method comprises recovering a first motion vector corresponding to a first decoding reference picture based on the entropy decoded bit stream, calculating a second motion vector corresponding to a second decoding reference picture by scaling the first motion vector based on a first temporal distance between the current picture and the first decoding reference picture and a second temporal distance between the current picture and the second decoding reference picture, generating a prediction block relating to a current block in the current picture, based on the calculated second motion vector, generating a residual block relating to the current block through a residual data decoding process based on the entropy decoded bit stream, and recovering the current block based on the prediction block and the residual block.Type: ApplicationFiled: November 28, 2018Publication date: March 28, 2019Applicant: SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATIONInventors: Byeung Woo JEON, Bong Soo JUNG, Kwang Hyun WON
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Patent number: 10178383Abstract: An image decoding method and an image decoding apparatus is provided. The method comprises recovering a first motion vector corresponding to a first decoding reference picture based on the entropy decoded bit stream, calculating a second motion vector corresponding to a second decoding reference picture by scaling the first motion vector based on a first temporal distance between the current picture and the first decoding reference picture and a second temporal distance between the current picture and the second decoding reference picture, generating a prediction block relating to a current block in the current picture, based on the calculated second motion vector, generating a residual block relating to the current block through a residual data decoding process based on the entropy decoded bit stream, and recovering the current block based on the prediction block and the residual block.Type: GrantFiled: February 28, 2013Date of Patent: January 8, 2019Assignee: SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATIONInventors: Byeung Woo Jeon, Bong Soo Jung, Kwang Hyun Won
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Patent number: 10123047Abstract: Disclosed are a method and an apparatus for image encoding/decoding. The method for image decoding includes comparing whether a size of a current transform block and a size of a smallest transform block (smallest transform unit (STU)) are the same as each other, and decoding information indicating whether transformation is performed on the current transform block and determining whether to perform inverse transformation on the current transform block based on the decoded information indicating whether the transformation is performed when the size of the current transform block and the size of a smallest transform block are the same as each other.Type: GrantFiled: February 2, 2018Date of Patent: November 6, 2018Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Byeung Woo Jeon, Kwang Hyun Won
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Publication number: 20180295383Abstract: Disclosed herein are a method and apparatus for filtering a reference pixel. A method of smoothing a reference pixel may include determining whether or not to perform smoothing on a reference pixel based on the size of a transform block and information about an intra-prediction mode for the transform block and determining a smoothing method by comparing the size of the transform block with the size of a maximum transform block. Accordingly, image coding efficiency can be increased, and picture quality can be improved.Type: ApplicationFiled: June 11, 2018Publication date: October 11, 2018Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Byeung Woo JEON, Ho Young LEE, Kwang Hyun WON
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Publication number: 20180270488Abstract: An encoding system includes a prediction mode decision unit and an encoding unit. The prediction mode decision unit is configured to receive a target image and decide an optimized mode by applying rate-distortion optimization (RDO) to n (n is a natural number) modes of the target image. The encoding unit is configured to encode the target image according to the decided mode. The prediction mode decision unit includes a distortion calculation unit configured to calculate distortion by mean squared error (MSE) calculation between the target image and the n modes, a Lagrangian multiplier calculation unit configured to calculate a Lagrangian multiplier based on multi-scale structural similarity (MS-SSIM) calculation, and a bitrate calculation unit configured to calculate a bit rate of the n modes.Type: ApplicationFiled: December 27, 2017Publication date: September 20, 2018Applicant: Research & Business Foundation SUNGKYUNKWANInventors: YO WON JEONG, JUNG YEOP YANG, YOUNG BEOM JUNG, BYEUNG WOO JEON, SUNG HYUN CHA, SEONG JIN KANG, QUOC KHANH DINH
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Patent number: 10027933Abstract: A method and an apparatus for outputting an image by using a color filter array (CFA) sensor are provided. The method includes receiving a 4-channel combination image signal through the CFA sensor, and separating the 4-channel combination image signal into a visible image signal and a near-infrared image signal, based on a signal separation coefficient including a color coefficient that is determined to convert 4-channel color data into 3-channel color data and a weight coefficient that is determined based on a 4-channel signal configured of near-infrared image signals. The method further includes outputting the visible image signal and the near-infrared image signal.Type: GrantFiled: July 7, 2016Date of Patent: July 17, 2018Assignees: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Kwang-hyun Won, Chan-yul Kim, Byeung-Woo Jeon, Khanh Quoc Dinh, Young-hyeon Park, Hiuk-jae Shim, Sun-il Lee
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Patent number: 10021422Abstract: Disclosed are a method and an apparatus for image encoding/decoding. The method for image decoding includes comparing whether a size of a current transform block and a size of a smallest transform block (smallest transform unit (STU)) are the same as each other, and decoding information indicating whether transformation is performed on the current transform block and determining whether to perform inverse transformation on the current transform block based on the decoded information indicating whether the transformation is performed when the size of the current transform block and the size of a smallest transform block are the same as each other.Type: GrantFiled: January 7, 2016Date of Patent: July 10, 2018Assignee: Research & Busines Foundation Sungkyunkwan UniversityInventors: Byeung Woo Jeon, Kwang Hyun Won
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Patent number: 9998759Abstract: Disclosed herein are a method and apparatus for filtering a reference pixel. A method of smoothing a reference pixel may include determining whether or not to perform smoothing on a reference pixel based on the size of a transform block and information about an intra-prediction mode for the transform block and determining a smoothing method by comparing the size of the transform block with the size of a maximum transform block. Accordingly, image coding efficiency can be increased, and picture quality can be improved.Type: GrantFiled: April 3, 2017Date of Patent: June 12, 2018Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Byeung Woo Jeon, Ho Young Lee, Kwang Hyun Won
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Publication number: 20180160146Abstract: Disclosed are a method and an apparatus for image encoding/decoding. The method for image decoding includes comparing whether a size of a current transform block and a size of a smallest transform block (smallest transform unit (STU)) are the same as each other, and decoding information indicating whether transformation is performed on the current transform block and determining whether to perform inverse transformation on the current transform block based on the decoded information indicating whether the transformation is performed when the size of the current transform block and the size of a smallest transform block are the same as each other.Type: ApplicationFiled: February 2, 2018Publication date: June 7, 2018Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Byeung Woo Jeon, Kwang Hyun Won
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Publication number: 20180160145Abstract: Disclosed are a method and an apparatus for image encoding/decoding. The method for image decoding includes comparing whether a size of a current transform block and a size of a smallest transform block (smallest transform unit (STU)) are the same as each other, and decoding information indicating whether transformation is performed on the current transform block and determining whether to perform inverse transformation on the current transform block based on the decoded information indicating whether the transformation is performed when the size of the current transform block and the size of a smallest transform block are the same as each other.Type: ApplicationFiled: February 2, 2018Publication date: June 7, 2018Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVER SITYInventors: Byeung Woo JEON, Kwang Hyun WON