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).
-
Publication number: 20220116636Abstract: Disclosed herein is a method of decoding an image. The method includes acquiring intra chroma prediction information of a current block from a bitstream, deriving an intra chroma prediction mode of the current block based on the intra chroma prediction information, and performing intra prediction with respect to the current block based on the intra chroma prediction mode. The intra chroma prediction mode may be any one of a linear model (LM)) mode, a derived luma (DM) mode, a Planar mode, a Vertical mode, a Horizontal mode and a DC mode, and a first bit of the intra chroma prediction information may be used to determine whether the intra chroma prediction mode is an LM mode.Type: ApplicationFiled: December 27, 2019Publication date: April 14, 2022Applicants: Electronics and Telecommunications Research Institute, RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Jung Won KANG, Ha Hyun LEE, Sung Chang LIM, Jin Ho LEE, Hui Yong KIM, Byeung Woo JEON, Jee Yoon PARK
-
Publication number: 20220086324Abstract: A processor-implemented method with image reconstruction includes: acquiring information indicating an amount of ambient light in accordance with a shutter exposure time of a camera; generating an ambient light pattern based on the information about the amount of ambient light; generating a compensation pattern which compensates for a invertibility of an external illumination pattern based on the ambient light pattern; controlling an operation of an external illumination based on the compensation pattern to acquire a photographed image by a camera; and reconstructing a latent image of the photographed image in the acquired photographed image based on the compensation pattern.Type: ApplicationFiled: September 17, 2021Publication date: March 17, 2022Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Byeung Woo JEON, Jae Lin LEE, Gyo Heak OH
-
Publication number: 20220007022Abstract: The present specification discloses a method of decoding an image. The method of decoding an image according to the method includes: obtaining transform skip information of a current block from a bitstream; obtaining multiple transform selection information of the current block on the basis of the transform skip information from the bitstream; and performing inverse transform on the current block on the basis of the multiple transform selection information, wherein the multiple transform selection information is used to set each of a horizontal transform type and a vertical transform type.Type: ApplicationFiled: October 4, 2019Publication date: January 6, 2022Applicants: Electronics and Telecommunications Research Institute, RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Jung Won KANG, Ha Hyun LEE, Sung Chang LIM, Jin Ho LEE, Hui Yong KIM, Byeung Woo JEON, Jee Yoon PARK
-
Publication number: 20210274195Abstract: A method for decoding an image, according to the present invention, can comprise the steps of: drawing out a vector predictor of a block vector for indicating a reference block with respect to a current block to be predicted within a current picture; drawing out the block vector on the basis of the vector predictor and a vector differential value corresponding to a different value of the block vector and the vector predictor; and generating a prediction block with respect to the current block on the basis of the block vector.Type: ApplicationFiled: May 14, 2021Publication date: September 2, 2021Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Byeung Woo JEON, Seung Ha YANG, Hiuk Jae SHIM, Da Hee LEE
-
Patent number: 11044482Abstract: A method for decoding an image, according to the present invention, can comprise the steps of: drawing out a vector predictor of a block vector for indicating a reference block with respect to a current block to be predicted within a current picture; drawing out the block vector on the basis of the vector predictor and a vector differential value corresponding to a different value of the block vector and the vector predictor; and generating a prediction block with respect to the current block on the basis of the block vector.Type: GrantFiled: June 19, 2015Date of Patent: June 22, 2021Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Byeung Woo Jeon, Seung Ha Yang, Hiuk Jae Shim, Da Hee Lee
-
Publication number: 20210166357Abstract: The present disclosure relates to a method of recovering an image from which a motion blur is removed and an image recovering apparatus and the image recovering apparatus according to an exemplary embodiment of the present disclosure includes a signal generator which receives at least one of illuminance information and speed information from a sensor to determine a random flickering pattern and a triggering signal based on the received signal, output the determined random flickering pattern to a lighting unit, and output the triggering signal to a camera; and an image processor which receives an image including a motion blur from the camera to recover the received image based on the random flickering pattern determined by the signal generator.Type: ApplicationFiled: November 30, 2020Publication date: June 3, 2021Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Byeung Woo JEON, Jae Lin LEE, Gyo Heak OH
-
Publication number: 20210136395Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. Coding decision information of a representative channel of a target block is shared as coding decision information of a target channel of the target block, and decoding of the target block is performed using the coding decision information of the target channel. Since the coding decision information of the representative channel is shared with an additional channel, repeated signaling of identical coding decision information may be prevented. By means of this prevention, the efficiency of encoding and decoding of the target block or the like may be improved.Type: ApplicationFiled: December 7, 2018Publication date: May 6, 2021Applicants: Electronics and Telecommunications Research Institute, RESEARCH AND BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Dong-San JUN, Jung-Won KANG, Hyunsuk KO, Sung-Chang LIM, Jin-Ho LEE, Ha-Hyun LEE, Byeung-Woo JEON, Hui-Yong KIM, Jee-Yoon PARK
-
Publication number: 20210067794Abstract: 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 13, 2020Publication date: March 4, 2021Inventors: 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
-
Patent number: 10939135Abstract: 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: September 18, 2020Date of Patent: March 2, 2021Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Byeung Woo Jeon, Ho Young Lee, Kwang Hyun Won
-
Patent number: 10931970Abstract: 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: August 5, 2019Date of Patent: February 23, 2021Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Byeung Woo Jeon, Ho Young Lee, Kwang Hyun Won
-
Patent number: 10924763Abstract: 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: September 18, 2020Date of Patent: February 16, 2021Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Byeung Woo Jeon, Ho Young Lee, Kwang Hyun Won
-
Patent number: 10917661Abstract: 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: September 18, 2020Date of Patent: February 9, 2021Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Byeung Woo Jeon, Ho Young Lee, Kwang Hyun Won
-
Publication number: 20210006828Abstract: 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: September 18, 2020Publication date: January 7, 2021Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Byeung Woo JEON, Ho Young LEE, Kwang Hyun WON
-
Publication number: 20210006826Abstract: 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: September 18, 2020Publication date: January 7, 2021Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Byeung Woo JEON, Ho Young LEE, Kwang Hyun WON
-
Publication number: 20210006827Abstract: 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: September 18, 2020Publication date: January 7, 2021Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Byeung Woo JEON, Ho Young LEE, Kwang Hyun WON
-
Patent number: 10869049Abstract: 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: GrantFiled: November 27, 2017Date of Patent: December 15, 2020Assignee: RESEARCH & BUSINESS FOUNDATION SUNGYUNWAN UNIVERSITYInventors: 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
-
Publication number: 20200275127Abstract: 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: April 28, 2020Publication date: August 27, 2020Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Byeung Woo JEON, Kwang Hyun WON
-
Patent number: 10742995Abstract: 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: GrantFiled: December 27, 2017Date of Patent: August 11, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Yo Won Jeong, Jung Yeop Yang, Young Beom Jung, Byeung Woo Jeon, Sung Hyun Cha, Seong Jin Kang, Quoc Khanh Dinh
-
Patent number: 10681381Abstract: 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: June 14, 2019Date of Patent: June 9, 2020Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: Byeung Woo Jeon, Kwang Hyun Won
-
Patent number: 10645399Abstract: The present invention relates to a method which can selectively skip a transform to alleviate problems of deterioration in compression rate and image quality which are mainly generated when applying the motion compensation-transform encoding image compression technique which is mainly used currently, to an image having a drastic spatial change in a pixel value such as a computer image, and can skip the transform by comparing a transform size of a current block and the size of a maximum transform skip block with each other, and provides an efficient signaling technique therefor. The method includes the steps of: comparing the size of a current transform unit (TU) with the size of a maximum transform skip block when determining whether to transform a residual signal corresponding to difference between the current block and a prediction block; and determining whether to perform the transform on the basis of the comparison information on the size of the TU and the size of the maximum transform skip block.Type: GrantFiled: July 23, 2014Date of Patent: May 5, 2020Assignee: Intellectual Discovery Co., Ltd.Inventors: Byeung Woo Jeon, Kwang Hyun Won, Seung Ha Yang