Patents by Inventor Ki-Baek Kim
Ki-Baek 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).
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Publication number: 20240080428Abstract: Disclosed are methods and apparatuses for decoding an image. A method includes receiving a bitstream obtained by encoding the image; dividing a first coding block into a plurality of second coding blocks; generating a prediction block of a second coding block based on syntax information obtained from the bitstream; and reconstructing the second coding block based on the prediction block and a residual block of the second coding block, the residual block being obtained by performing a dequantization and an inverse-transform on quantized transform coefficients from the bitstream. The first coding block has a recursive division structure. The first coding block is divided based on at least one of a quad tree division, a binary tree division or a triple tree division.Type: ApplicationFiled: November 7, 2023Publication date: March 7, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Publication number: 20240080440Abstract: A method and apparatus for encoding/decoding images according to the present invention may configure a prediction mode candidate group on a screen of a target block, determine a reference pixel for a prediction mode on the screen of the target block, perform at least one of filtering and interpolation on the reference pixel, and perform prediction on the screen of the target block on the basis of the prediction mode candidate group on the screen and the reference pixel.Type: ApplicationFiled: November 1, 2023Publication date: March 7, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Patent number: 11920496Abstract: Disclosed herein are an airfoil, and a turbine blade and gas turbine including the same. The airfoil includes a first cooling passage allowing a first cooling fluid introduced from the bottom of a leading edge to flow into a first serpentine channel formed on a pressure side, and to be then discharged to the rear of a trailing edge, and a second cooling passage allowing a second cooling fluid introduced from the bottom of a suction side to be divided and flow into at least two second serpentine channels formed on the suction side, and allowing the divided cooling fluids introduced into the at least two second serpentine channels to be joined at the bottom thereof and to be then discharged to the rear of the trailing edge.Type: GrantFiled: September 12, 2023Date of Patent: March 5, 2024Assignee: DOOSAN ENERBILITY CO., LTD.Inventors: Ki Baek Kim, Seok Beom Kim
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Patent number: 11924414Abstract: The image encoding/decoding method and device according to the present invention may determine an intra prediction mode of a current block and perform intra prediction on the current block on the basis of the intra prediction mode, wherein the intra prediction mode of the current block is determined for each of a luminance block and a color difference block.Type: GrantFiled: April 4, 2023Date of Patent: March 5, 2024Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventor: Ki Baek Kim
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Publication number: 20240073394Abstract: Disclosed are methods and apparatuses for decoding an image. A method includes receiving a bitstream obtained by encoding the image; dividing a first coding block into a plurality of second coding blocks; generating a prediction block of a second coding block based on syntax information obtained from the bitstream; and reconstructing the second coding block based on the prediction block and a residual block of the second coding block, the residual block being obtained by performing a dequantization and an inverse-transform on quantized transform coefficients from the bitstream. The first coding block has a recursive division structure. The first coding block is divided based on at least one of a quad tree division, a binary tree division or a triple tree division.Type: ApplicationFiled: November 7, 2023Publication date: February 29, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Publication number: 20240073395Abstract: Disclosed are methods and apparatuses for decoding an image. A method includes receiving a bitstream obtained by encoding the image; dividing a first coding block into a plurality of second coding blocks; generating a prediction block of a second coding block based on syntax information obtained from the bitstream; and reconstructing the second coding block based on the prediction block and a residual block of the second coding block, the residual block being obtained by performing a dequantization and an inverse-transform on quantized transform coefficients from the bitstream. The first coding block has a recursive division structure. The first coding block is divided based on at least one of a quad tree division, a binary tree division or a triple tree division.Type: ApplicationFiled: November 7, 2023Publication date: February 29, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Publication number: 20240073534Abstract: A method of decoding an image, includes obtaining at least one offset for a picture, deriving a variable for scaling for the picture based on the at least one offset, and performing inter prediction based on the variable for scaling for the picture. The at least one offset is defined with a direction of scaling.Type: ApplicationFiled: November 6, 2023Publication date: February 29, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Publication number: 20240073396Abstract: Disclosed are methods and apparatuses for decoding an image. A method includes receiving a bitstream obtained by encoding the image; dividing a first coding block into a plurality of second coding blocks; generating a prediction block of a second coding block based on syntax information obtained from the bitstream; and reconstructing the second coding block based on the prediction block and a residual block of the second coding block, the residual block being obtained by performing a dequantization and an inverse-transform on quantized transform coefficients from the bitstream. The first coding block has a recursive division structure. The first coding block is divided based on at least one of a quad tree division, a binary tree division or a triple tree division.Type: ApplicationFiled: November 7, 2023Publication date: February 29, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Publication number: 20240073535Abstract: A method of decoding an image, includes obtaining at least one offset for a picture, deriving a variable for scaling for the picture based on the at least one offset, and performing inter prediction based on the variable for scaling for the picture. The at least one offset is defined with a direction of scaling.Type: ApplicationFiled: November 6, 2023Publication date: February 29, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Publication number: 20240073533Abstract: A method for decoding a 360-degree image includes: receiving a bitstream obtained by encoding a 360-degree image; generating a prediction image by making reference to syntax information obtained from the received bitstream; combining the generated prediction image with a residual image obtained by dequantizing and inverse-transforming the bitstream, so as to obtain a decoded image; and reconstructing the decoded image into a 360-degree image according to a projection format. Here, generating the prediction image includes: checking, from the syntax information, prediction mode accuracy for a current block to be decoded; determining whether the checked prediction mode accuracy corresponds to most probable mode (MPM) information obtained from the syntax information; and when the checked prediction mode accuracy does not correspond to the MPM information, reconfiguring the MPM information according to the prediction mode accuracy for the current block.Type: ApplicationFiled: October 31, 2023Publication date: February 29, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Publication number: 20240073536Abstract: A method of decoding an image, includes obtaining at least one offset for a picture, deriving a variable for scaling for the picture based on the at least one offset, and performing inter prediction based on the variable for scaling for the picture. The at least one offset is defined with a direction of scaling.Type: ApplicationFiled: November 6, 2023Publication date: February 29, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Patent number: 11917195Abstract: A method and a device for encoding/decoding an image according to the present invention may determine a reference region for intra prediction of a current block, derive an intra prediction mode of the current block on the basis of a predetermined MPM candidate group, and perform intra prediction on the current block on the basis of the reference region and the intra prediction mode.Type: GrantFiled: September 6, 2019Date of Patent: February 27, 2024Assignee: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek Kim
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Publication number: 20240064410Abstract: A method for decoding a 360-degree image includes: receiving a bitstream obtained by encoding a 360-degree image; generating a prediction image by making reference to syntax information obtained from the received bitstream; combining the generated prediction image with a residual image obtained by dequantizing and inverse-transforming the bitstream, so as to obtain a decoded image; and reconstructing the decoded image into a 360-degree image according to a projection format. Here, generating the prediction image includes: checking, from the syntax information, prediction mode accuracy for a current block to be decoded; determining whether the checked prediction mode accuracy corresponds to most probable mode (MPM) information obtained from the syntax information; and when the checked prediction mode accuracy does not correspond to the MPM information, reconfiguring the MPM information according to the prediction mode accuracy for the current block.Type: ApplicationFiled: October 31, 2023Publication date: February 22, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Publication number: 20240064409Abstract: A method for decoding a 360-degree image includes: receiving a bitstream obtained by encoding a 360-degree image; generating a prediction image by making reference to syntax information obtained from the received bitstream; combining the generated prediction image with a residual image obtained by dequantizing and inverse-transforming the bitstream, so as to obtain a decoded image; and reconstructing the decoded image into a 360-degree image according to a projection format. Here, generating the prediction image includes: checking, from the syntax information, prediction mode accuracy for a current block to be decoded; determining whether the checked prediction mode accuracy corresponds to most probable mode (MPM) information obtained from the syntax information; and when the checked prediction mode accuracy does not correspond to the MPM information, reconfiguring the MPM information according to the prediction mode accuracy for the current block.Type: ApplicationFiled: October 31, 2023Publication date: February 22, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Publication number: 20240064321Abstract: An image encoding/decoding method and apparatus of the present invention may derive motion information of a current block, and perform motion compensation for the current block on the basis of the motion information. The motion information of the current block is derived on the basis of an inter-mode predefined in an encoding/decoding apparatus, and the predefined inter-mode may include at least one of a merge mode, an AMVP mode, an affine mode, or an intra block copy (IBC) mode.Type: ApplicationFiled: November 1, 2023Publication date: February 22, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Publication number: 20240064408Abstract: A method for decoding a 360-degree image includes: receiving a bitstream obtained by encoding a 360-degree image; generating a prediction image by making reference to syntax information obtained from the received bitstream; combining the generated prediction image with a residual image obtained by dequantizing and inverse-transforming the bitstream, so as to obtain a decoded image; and reconstructing the decoded image into a 360-degree image according to a projection format. Here, generating the prediction image includes: checking, from the syntax information, prediction mode accuracy for a current block to be decoded; determining whether the checked prediction mode accuracy corresponds to most probable mode (MPM) information obtained from the syntax information; and when the checked prediction mode accuracy does not correspond to the MPM information, reconfiguring the MPM information according to the prediction mode accuracy for the current block.Type: ApplicationFiled: October 31, 2023Publication date: February 22, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Patent number: 11910094Abstract: A method of decoding an image, includes obtaining at least one offset for a picture, deriving a variable for scaling for the picture based on the at least one offset, and performing inter prediction based on the variable for scaling for the picture. The at least one offset is defined with a direction of scaling.Type: GrantFiled: August 9, 2023Date of Patent: February 20, 2024Assignee: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek Kim
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Patent number: 11910018Abstract: Disclosed are methods and apparatuses for image data encoding/decoding. A method of decoding an image includes receiving a bitstream in which the image is encoded; obtaining index information for specifying a block division type of a current block in the image; and determining the block division type of the current block from a candidate group pre-defined in the decoding apparatus. The candidate group includes a plurality of candidate division types, including at least one of a non-division, a first quad-division, a second quad-division, a binary-division or a triple-division. The method also includes dividing the current block into a plurality of sub-blocks; and decoding each of the sub-blocks with reference to syntax information obtained from the bitstream.Type: GrantFiled: August 2, 2023Date of Patent: February 20, 2024Assignee: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek Kim
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Publication number: 20240056613Abstract: Disclosed is an encoding/decoding method and apparatus related to adaptive deblocking filtering. There is provided an image decoding method performing adaptive filtering in inter-prediction, the method including: reconstructing, from a bitstream, an image signal including a reference block on which block matching is performed in inter-prediction of a current block to be encoded; obtaining, from the bitstream, a flag indicating whether the reference block exists within a current picture where the current block is positioned; reconstructing the current block by using the reference block; adaptively applying an in-loop filter for the reconstructed current block based on the obtained flag; and storing the current block to which the in-loop filter is or is not applied in a decoded picture buffer (DPB).Type: ApplicationFiled: October 24, 2023Publication date: February 15, 2024Applicant: Dolby Laboratories Licensing CorporationInventors: Je Chang JEONG, Ki Baek KIM
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Patent number: 11902578Abstract: Disclosed are methods and apparatuses for image data encoding/decoding. A method of decoding an image includes receiving a bitstream in which the image is encoded; obtaining index information for specifying a block division type of a current block in the image; and determining the block division type of the current block from a candidate group pre-defined in the decoding apparatus. The candidate group includes a plurality of candidate division types, including at least one of a non-division, a first quad-division, a second quad-division, a binary-division or a triple-division. The method also includes dividing the current block into a plurality of sub-blocks; and decoding each of the sub-blocks with reference to syntax information obtained from the bitstream.Type: GrantFiled: May 30, 2023Date of Patent: February 13, 2024Assignee: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek Kim