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: 20240098275Abstract: A method for decoding an image based on an intra prediction, comprising: obtaining a first prediction pixel of a first region in a current block by using a neighboring pixel adjacent to the current block; obtaining a second prediction pixel of a second region in the current block by using the first prediction pixel of the first region; and decoding the current block based on the first and the second prediction pixels.Type: ApplicationFiled: November 15, 2023Publication date: March 21, 2024Inventors: Je Chang JEONG, Ki Baek KIM, Won Jin LEE, Hye Jin SHIN, Jong Sang YOO, Jang Hyeok YUN, Kyung Jun LEE, Jae Hun KIM, Sang Gu LEE
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Publication number: 20240098236Abstract: 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 29, 2023Publication date: March 21, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Publication number: 20240098262Abstract: An image encoding/decoding method and apparatus of the present invention may divide one picture into a plurality of division units, determine whether to perform filtering on a boundary of a current division unit based on a predetermined flag, and perform filtering on the boundary of the current division unit in response to the determination.Type: ApplicationFiled: November 28, 2023Publication date: March 21, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Publication number: 20240098304Abstract: 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: ApplicationFiled: December 1, 2023Publication date: March 21, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Publication number: 20240098238Abstract: 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 29, 2023Publication date: March 21, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Publication number: 20240098239Abstract: 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 29, 2023Publication date: March 21, 2024Applicant: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek KIM
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Patent number: 11936841Abstract: 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: GrantFiled: August 8, 2023Date of Patent: March 19, 2024Assignee: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.Inventor: Ki Baek Kim
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Patent number: 11936908Abstract: An intra-frame prediction method and device, according to the present invention, enables deriving an intra-frame prediction mode of a current block, determining a pixel line, among a plurality of pixel lines, for the intra-frame prediction of the current block, and carrying out the intra-frame prediction of the current block on the basis of the intra-frame prediction mode and the pixel line. In addition, a first reference pixel of the determined pixel line may be selectively filtered, and a prediction pixel of the current block may be selectively corrected, and thus the accuracy of the intra-frame prediction may be improved.Type: GrantFiled: August 9, 2022Date of Patent: March 19, 2024Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventor: Ki Baek Kim
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Patent number: 11936907Abstract: An intra-frame prediction method and device, according to the present invention, enables deriving an intra-frame prediction mode of a current block, determining a pixel line, among a plurality of pixel lines, for the intra-frame prediction of the current block, and carrying out the intra-frame prediction of the current block on the basis of the intra-frame prediction mode and the pixel line. In addition, a first reference pixel of the determined pixel line may be selectively filtered, and a prediction pixel of the current block may be selectively corrected, and thus the accuracy of the intra-frame prediction may be improved.Type: GrantFiled: August 9, 2022Date of Patent: March 19, 2024Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventor: Ki Baek Kim
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Patent number: 11936906Abstract: An intra-frame prediction method and device, according to the present invention, enables deriving an intra-frame prediction mode of a current block, determining a pixel line, among a plurality of pixel lines, for the intra-frame prediction of the current block, and carrying out the intra-frame prediction of the current block on the basis of the intra-frame prediction mode and the pixel line. In addition, a first reference pixel of the determined pixel line may be selectively filtered, and a prediction pixel of the current block may be selectively corrected, and thus the accuracy of the intra-frame prediction may be improved.Type: GrantFiled: August 9, 2022Date of Patent: March 19, 2024Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventor: Ki Baek Kim
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Patent number: 11930210Abstract: An intra-frame prediction method and device, according to the present invention, enables deriving an intra-frame prediction mode of a current block, determining a pixel line, among a plurality of pixel lines, for the intra-frame prediction of the current block, and carrying out the intra-frame prediction of the current block on the basis of the intra-frame prediction mode and the pixel line. In addition, a first reference pixel of the determined pixel line may be selectively filtered, and a prediction pixel of the current block may be selectively corrected, and thus the accuracy of the intra-frame prediction may be improved.Type: GrantFiled: August 9, 2022Date of Patent: March 12, 2024Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.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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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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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: 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: 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: 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