Patents by Inventor Wha Pyeong Lim
Wha Pyeong Lim 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).
-
Patent number: 11979574Abstract: A method and device for controlling coding tools are provided. The video decoding method includes decoding, from a high level of a bitstream, an enable flag indicating whether one or more coding tools are enabled. The coding tools includes a first coding tool that encodes sample values using luma component mapping based on a piecewise linear model. The method includes acquiring a value of an application flag depending on a value of the enable flag, by setting the application flag indicating whether to apply the coding tools to a predetermined value, or by decoding the application flag from a low level of the bitstream, the application flag including a first application flag indicating whether to apply the first coding tool. The coding tools are operated when the value of the application flag is a value indicating that the coding tools are applied.Type: GrantFiled: October 12, 2022Date of Patent: May 7, 2024Assignees: Hyundai Motor Company, Kia Corporation, Ewha University-Industry Collaboration FoundationInventors: Je Won Kang, Sang Hyo Park, Seung Wook Park, Wha Pyeong Lim
-
Patent number: 11973966Abstract: A video decoding method and a video decoding apparatus are configured to decode video. To efficiently code residual blocks obtained from block-based motion compensation, a video encoding apparatus and the video decoding apparatus divide a relevant residual block of a current block into two subblocks in a horizontal or vertical direction and encode one residual subblock alone out of the two residual subblocks.Type: GrantFiled: March 12, 2020Date of Patent: April 30, 2024Assignees: Hyundai Motor Company, Kia Motors Corporation, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Jong Seok Lee, Sea Nae Park, Seung Wook Park, Wha Pyeong Lim
-
Patent number: 11962775Abstract: An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.Type: GrantFiled: November 16, 2022Date of Patent: April 16, 2024Assignees: Hyundai Motor Company, Kia Corporation, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Sea Nae Park, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
-
Patent number: 11962777Abstract: An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.Type: GrantFiled: November 16, 2022Date of Patent: April 16, 2024Assignees: Hyundai Motor Company, Kia Corporation, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Sea Nae Park, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
-
Patent number: 11962776Abstract: An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.Type: GrantFiled: November 16, 2022Date of Patent: April 16, 2024Assignees: Hyundai Motor Company, Kia Corporation, Kwangwon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Sea Nae Park, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
-
Publication number: 20240114148Abstract: A video encoding method and a video decoding method are provided for adaptively determining a chroma intra-directional prediction mode. When a DM mode is applied for intra prediction of a chroma signal, the video encoding method and the video decoding method adaptively modify the directional mode of a luma block to conform to the characteristics of a chroma block by considering the position and size of the chroma block, the presence of reference samples, and the size of the luma block. The video encoding method and the video decoding method use the modified directional mode for intra prediction of the chroma signal.Type: ApplicationFiled: November 16, 2021Publication date: April 4, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Byeung Woo Jeon, Jee Yoon Park, Bum Yoon Kim, Seung Wook Park, Wha Pyeong Lim
-
Patent number: 11943441Abstract: An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.Type: GrantFiled: November 16, 2022Date of Patent: March 26, 2024Assignees: Hyundai Motor Company, Kia Corporation, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Sea Nae Park, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
-
Publication number: 20240089454Abstract: A method and for reconstructing chroma blocks and a video decoding apparatus are disclosed. In accordance with one aspect of the present disclosure, provided is a method for reconstructing a chroma block of a target block to be reconstructed. The method includes decoding correlation information between first residual samples and second residual samples, the first residual sample, and prediction information of the chroma block from a bitstream, wherein the first residual samples are residual samples of a first chroma component and the second residual samples are residual samples of a second chroma component. The method further includes generating predicted samples of the first chroma component and predicted samples of the second chroma information on the basis of the prediction information, and deriving the second residual samples by applying the correlation information to the first residual samples.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Inventors: Dong Gyu Sim, Sea Nae Park, Seung Wook Park, Wha Pyeong Lim
-
Publication number: 20240089453Abstract: A method and for reconstructing chroma blocks and a video decoding apparatus are disclosed. In accordance with one aspect of the present disclosure, provided is a method for reconstructing a chroma block of a target block to be reconstructed. The method includes decoding correlation information between first residual samples and second residual samples, the first residual sample, and prediction information of the chroma block from a bitstream, wherein the first residual samples are residual samples of a first chroma component and the second residual samples are residual samples of a second chroma component. The method further includes generating predicted samples of the first chroma component and predicted samples of the second chroma information on the basis of the prediction information, and deriving the second residual samples by applying the correlation information to the first residual samples.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Inventors: Dong Gyu Sim, Sea Nae Park, Seung Wook Park, Wha Pyeong Lim
-
Publication number: 20240089452Abstract: A method and for reconstructing chroma blocks and a video decoding apparatus are disclosed. In accordance with one aspect of the present disclosure, provided is a method for reconstructing a chroma block of a target block to be reconstructed. The method includes decoding correlation information between first residual samples and second residual samples, the first residual sample, and prediction information of the chroma block from a bitstream, wherein the first residual samples are residual samples of a first chroma component and the second residual samples are residual samples of a second chroma component. The method further includes generating predicted samples of the first chroma component and predicted samples of the second chroma information on the basis of the prediction information, and deriving the second residual samples by applying the correlation information to the first residual samples.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Inventors: Dong Gyu Sim, Sea Nae Park, Seung Wook Park, Wha Pyeong Lim
-
Publication number: 20240089455Abstract: A method and for reconstructing chroma blocks and a video decoding apparatus are disclosed. In accordance with one aspect of the present disclosure, provided is a method for reconstructing a chroma block of a target block to be reconstructed. The method includes decoding correlation information between first residual samples and second residual samples, the first residual sample, and prediction information of the chroma block from a bitstream, wherein the first residual samples are residual samples of a first chroma component and the second residual samples are residual samples of a second chroma component. The method further includes generating predicted samples of the first chroma component and predicted samples of the second chroma information on the basis of the prediction information, and deriving the second residual samples by applying the correlation information to the first residual samples.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Inventors: Dong Gyu Sim, Sea Nae Park, Seung Wook Park, Wha Pyeong Lim
-
Publication number: 20240089456Abstract: A method and for reconstructing chroma blocks and a video decoding apparatus are disclosed. In accordance with one aspect of the present disclosure, provided is a method for reconstructing a chroma block of a target block to be reconstructed. The method includes decoding correlation information between first residual samples and second residual samples, the first residual sample, and prediction information of the chroma block from a bitstream, wherein the first residual samples are residual samples of a first chroma component and the second residual samples are residual samples of a second chroma component. The method further includes generating predicted samples of the first chroma component and predicted samples of the second chroma information on the basis of the prediction information, and deriving the second residual samples by applying the correlation information to the first residual samples.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Inventors: Dong Gyu Sim, Sea Nae Park, Seung Wook Park, Wha Pyeong Lim
-
Patent number: 11930180Abstract: A method and an apparatus are configured for intra prediction coding of video data. An apparatus for decoding video data includes: a decoding unit which obtains, from a bitstream, information on a luma prediction mode and information on a chroma prediction mode of a current coding block; and an intra prediction unit which generates luma prediction samples and chroma prediction samples of the current coding block. The intra prediction unit derives a luma intra prediction type and a luma intra prediction mode of the current coding block on the basis of the information on the luma prediction mode, and determines a chroma intra prediction mode of the current coding block on the basis of the luma intra prediction type and the luma intra prediction mode of the current coding block, and the information on the chroma prediction mode.Type: GrantFiled: August 6, 2020Date of Patent: March 12, 2024Assignees: Hyundai Motor Company, Kia Motors Corporation, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Joo Hyung Byeon, Sea Nae Park, Jun Taek Park, Seung Wook Park, Wha Pyeong Lim
-
Patent number: 11917181Abstract: A method and apparatus for intra-prediction coding of video data are provided. The apparatus includes a decoder that is configured to decode, from a bitstream, a syntax element indicating an intra-prediction type of a current block of the video data, and an intra-predictor that is configured to generate a prediction block for the current block by selectively performing matrix based intra-prediction or regular intra-prediction based on the intra-prediction type of the current block indicated by the syntax element.Type: GrantFiled: January 5, 2023Date of Patent: February 27, 2024Assignees: Hyundai Motor Company, Kia Corporation, Ewha University-Industry Collaboration FoundationInventors: Je Won Kang, Sang Hyo Park, Seung Wook Park, Wha Pyeong Lim
-
Patent number: 11917180Abstract: A method and apparatus for intra-prediction coding of video data are provided. The apparatus includes a decoder that is configured to decode, from a bitstream, a syntax element indicating an intra-prediction type of a current block of the video data, and an intra-predictor that is configured to generate a prediction block for the current block by selectively performing matrix based intra-prediction or regular intra-prediction based on the intra-prediction type of the current block indicated by the syntax element.Type: GrantFiled: January 5, 2023Date of Patent: February 27, 2024Assignees: Hyundai Motor Company, Kia Corporation, Ewha University-Industry Collaboration FoundationInventors: Je Won Kang, Sang Hyo Park, Seung Wook Park, Wha Pyeong Lim
-
Patent number: 11909962Abstract: An apparatus for decoding video data includes a decoder configured to decode, from a bitstream, a syntax element indicating an intra-prediction type of a current block of the video data, and an intra-predictor configured to generate a prediction block for the current block by selectively performing matrix based intra-prediction (MIP) or regular intra-prediction based on the intra-prediction type of the current block indicated by the syntax element.Type: GrantFiled: November 5, 2021Date of Patent: February 20, 2024Assignees: Hyundai Motor Company, Kia Corporation, Ewha University—Industry Collaboration FoundationInventors: Je Won Kang, Sang Hyo Park, Seung Wook Park, Wha Pyeong Lim
-
Patent number: 11910023Abstract: A method and an apparatus for parallel encoding and decoding of moving picture data are provided. The method includes decoding, from a bitstream, a syntax element indicating that a picture can be decoded using wavefront parallel processing and decoding encoded data of the picture. The step of decoding encoded data of the picture includes for a first coding block of a current CTU row encoded in a palette mode, predicting a palette table for the first coding block by using palette data from a first CTU of a previous CTU row and decoding the first coding block in the palette mode using the palette table predicted for the first coding block.Type: GrantFiled: December 11, 2022Date of Patent: February 20, 2024Assignees: Hyundai Motor Company, Kia Corporation, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Sea Nae Park, Joo Hyung Byeon, Seung Wook Park, Wha Pyeong Lim
-
Patent number: 11909994Abstract: A method and apparatus for intra-prediction coding of video data are provided. The apparatus includes a decoder that is configured to decode, from a bitstream, a syntax element indicating an intra-prediction type of a current block of the video data, and an intra-predictor that is configured to generate a prediction block for the current block by selectively performing matrix based intra-prediction or regular intra-prediction based on the intra-prediction type of the current block indicated by the syntax element.Type: GrantFiled: January 5, 2023Date of Patent: February 20, 2024Assignees: Hyundai Motor Company, Kia Corporation, Ewha University-Industry Collaboration FoundationInventors: Je Won Kang, Sang Hyo Park, Seung Wook Park, Wha Pyeong Lim
-
Publication number: 20240054686Abstract: A VCM coding apparatus and a VCM coding method, related to a deep learning-based feature map coding apparatus in a multitasking system for machine vision, are provided for performing default procedures of generating and compressing a common feature map related to multiple tasks implied by an original video. The VCM coding apparatus and the VCM coding method can further generate and compress a task-specific feature map whenever needed for higher performance than obtainable with the common feature map to ensure relatively acceptable performance for both machine vision and human vision.Type: ApplicationFiled: September 29, 2021Publication date: February 15, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, EWHA UNIVERSITY - INDUSTRY COLLABORATION FOUNDATIONInventors: Je Won Kang, Chae Hwa Yoo, Seung Wook Park, Wha Pyeong Lim
-
Patent number: 11902512Abstract: An apparatus for decoding video data includes a decoder configured to decode, from a bitstream, a syntax element indicating an intra-prediction type of a current block of the video data, and an intra-predictor configured to generate a prediction block for the current block by selectively performing matrix based intra-prediction (MIP) or regular intra-prediction based on the intra-prediction type of the current block indicated by the syntax element.Type: GrantFiled: November 5, 2021Date of Patent: February 13, 2024Assignees: Hyundai Motor Company, Kia Corporation, Ewha University—Industry Collaboration FoundationInventors: Je Won Kang, Sang Hyo Park, Seung Wook Park, Wha Pyeong Lim