Patents by Inventor Tae Young Na
Tae Young Na 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: 20240137568Abstract: Disclosed is a method and apparatus for encoding/decoding a video. According to an embodiment, provided is a method of setting a level for each of one or more regions, including decoding a definition syntax element related to level definition and a designation syntax element related to target designation from a bitstream; defining one or more levels based on the definition syntax element; and setting a target level designated by the designation syntax element among the defined levels for a target region designated by the designation syntax element.Type: ApplicationFiled: January 2, 2024Publication date: April 25, 2024Inventors: Jeong-yeon LIM, Jae Seob SHIN, Sun Young LEE, Se Hoon SON, Tae Young NA, Jae Il KIM
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Patent number: 11962764Abstract: Disclosed are an inter-prediction method and an image decoding apparatus using the same. According to an embodiment of the present invention, there is provided an inter-prediction method including extracting a merge candidate flag and offset information from a bitstream, selecting a merge candidate corresponding to the extracted merge candidate flag from a merge candidate list including neighboring blocks of a current block as merge candidates, deciding a motion vector of the current block by applying the offset information to a motion vector of the selected merge candidate, and generating, as a prediction block of the current block, a block indicated by the motion vector of the current block in a reference picture referenced by the selected merge candidate.Type: GrantFiled: April 26, 2023Date of Patent: April 16, 2024Assignee: SK TELECOM CO., LTD.Inventors: Tae Young Na, Sun Young Lee, Kyung Hwan Ko, Se Hoon Son, Jae Il Kim
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Patent number: 11956427Abstract: A method is disclosed for reconstructing a current block in units of sub-blocks included in the current block. The method includes: decoding transform coefficients in a transform block of the current block, sub-block information indicating a division form of the sub-blocks and transform type information indicating a transform type applied to the transform block from a bitstream; deriving a residual block of the current block from the transform coefficients on the basis of the transform type indicated by the transform type information and the sub-block information; and filtering boundaries of the sub-blocks in a reconstructed block of the current block derived on the basis of the residual block.Type: GrantFiled: March 20, 2020Date of Patent: April 9, 2024Assignee: SK TELECOM CO., LTD.Inventors: Tae Young Na, Sun Young Lee, Kyung Hwan Ko, Se Hoon Son, Jae Il Kim
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Patent number: 11924473Abstract: Disclosed herein is a method for decoding a video including determining a coding unit to be decoded by block partitioning, decoding prediction syntaxes for the coding unit, the prediction syntaxes including a skip flag indicating whether the coding unit is encoded in a skip mode, after the decoding of the prediction syntaxes, decoding transform syntaxes including a transformation/quantization skip flag and a coding unit cbf, wherein the transformation/quantization skip flag indicates whether inverse transformation, inverse quantization, and at least part of in-loop filterings are skipped, and the coding unit cbf indicates whether all coefficients in a luma block and two chroma blocks constituting the coding unit are zero, and reconstructing the coding unit based on the prediction syntaxes and the transform syntaxes.Type: GrantFiled: June 2, 2022Date of Patent: March 5, 2024Assignee: SK TELECOM CO., LTD.Inventors: Sun Young Lee, Jeong-yeon Lim, Tae Young Na, Gyeong-taek Lee, Jae-seob Shin, Se Hoon Son, Hyo Song Kim
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Patent number: 11902590Abstract: Disclosed is a method and apparatus for encoding/decoding a video. According to an embodiment, provided is a method of setting a level for each of one or more regions, including decoding a definition syntax element related to level definition and a designation syntax element related to target designation from a bitstream; defining one or more levels based on the definition syntax element; and setting a target level designated by the designation syntax element among the defined levels for a target region designated by the designation syntax element.Type: GrantFiled: October 20, 2022Date of Patent: February 13, 2024Assignee: SK TELECOM CO., LTD.Inventors: Jeong-yeon Lim, Jae Seob Shin, Sun Young Lee, Se Hoon Son, Tae Young Na, Jae Il Kim
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Patent number: 11849122Abstract: Disclosed are an inter-prediction method and an video decoding device. One embodiment of the present invention provides an inter-prediction method executed in an video decoding device, including deriving a motion vector of a current block based on motion information decoded from a bitstream; acquiring reference samples of a first reference block by using the motion vector, wherein reference samples of an external region located outside a reference picture among the first reference block are acquired from a corresponding region corresponding to the external region within the reference picture; and predicting the current block based on the acquired reference samples.Type: GrantFiled: July 14, 2022Date of Patent: December 19, 2023Assignee: SK TELECOM CO., LTD.Inventors: Jeong Yeon Lim, Se Hoon Son, Sun Young Lee, Tae Young Na
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Patent number: 11849121Abstract: Disclosed are an inter-prediction method and an video decoding device. One embodiment of the present invention provides an inter-prediction method executed in an video decoding device, including deriving a motion vector of a current block based on motion information decoded from a bitstream; acquiring reference samples of a first reference block by using the motion vector, wherein reference samples of an external region located outside a reference picture among the first reference block are acquired from a corresponding region corresponding to the external region within the reference picture; and predicting the current block based on the acquired reference samples.Type: GrantFiled: July 14, 2022Date of Patent: December 19, 2023Assignee: SK TELECOM CO., LTD.Inventors: Jeong Yeon Lim, Se Hoon Son, Sun Young Lee, Tae Young Na
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Patent number: 11838515Abstract: Disclosed are an inter-prediction method and an video decoding device. One embodiment of the present invention provides an inter-prediction method executed in an video decoding device, including deriving a motion vector of a current block based on motion information decoded from a bitstream; acquiring reference samples of a first reference block by using the motion vector, wherein reference samples of an external region located outside a reference picture among the first reference block are acquired from a corresponding region corresponding to the external region within the reference picture; and predicting the current block based on the acquired reference samples.Type: GrantFiled: July 14, 2022Date of Patent: December 5, 2023Assignee: SK TELECOM CO., LTD.Inventors: Jeong Yeon Lim, Se Hoon Son, Sun Young Lee, Tae Young Na
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Patent number: 11838516Abstract: Disclosed are an inter-prediction method and an video decoding device. One embodiment of the present invention provides an inter-prediction method executed in an video decoding device, including deriving a motion vector of a current block based on motion information decoded from a bitstream; acquiring reference samples of a first reference block by using the motion vector, wherein reference samples of an external region located outside a reference picture among the first reference block are acquired from a corresponding region corresponding to the external region within the reference picture; and predicting the current block based on the acquired reference samples.Type: GrantFiled: July 14, 2022Date of Patent: December 5, 2023Assignee: SK TELECOM CO., LTD.Inventors: Jeong Yeon Lim, Se Hoon Son, Sun Young Lee, Tae Young Na
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Patent number: 11812061Abstract: Disclosed herein is a method for decoding a video including determining a coding unit to be decoded by block partitioning, decoding prediction syntaxes for the coding unit, the prediction syntaxes including a skip flag indicating whether the coding unit is encoded in a skip mode, after the decoding of the prediction syntaxes, decoding transform syntaxes including a transformation/quantization skip flag and a coding unit cbf, wherein the transformation/quantization skip flag indicates whether inverse transformation, inverse quantization, and at least part of in-loop filterings are skipped, and the coding unit cbf indicates whether all coefficients in a luma block and two chroma blocks constituting the coding unit are zero, and reconstructing the coding unit based on the prediction syntaxes and the transform syntaxes.Type: GrantFiled: June 2, 2022Date of Patent: November 7, 2023Assignee: SK TELECOM CO., LTD.Inventors: Sun Young Lee, Jeong-yeon Lim, Tae Young Na, Gyeong-taek Lee, Jae-seob Shin, Se Hoon Son, Hyo Song Kim
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Patent number: 11792436Abstract: Disclosed is a method and apparatus for encoding/decoding a video. According to an embodiment, provided is a method of setting a level for each of one or more regions, including decoding a definition syntax element related to level definition and a designation syntax element related to target designation from a bitstream; defining one or more levels based on the definition syntax element; and setting a target level designated by the designation syntax element among the defined levels for a target region designated by the designation syntax element.Type: GrantFiled: October 20, 2022Date of Patent: October 17, 2023Assignee: SK TELECOM CO., LTD.Inventors: Jeong-yeon Lim, Jae Seob Shin, Sun Young Lee, Se Hoon Son, Tae Young Na, Jae Il Kim
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Patent number: 11778238Abstract: Disclosed is a method and apparatus for encoding/decoding a video. According to an embodiment, provided is a method of setting a level for each of one or more regions, including decoding a definition syntax element related to level definition and a designation syntax element related to target designation from a bitstream; defining one or more levels based on the definition syntax element; and setting a target level designated by the designation syntax element among the defined levels for a target region designated by the designation syntax element.Type: GrantFiled: October 20, 2022Date of Patent: October 3, 2023Assignee: SK TELECOM CO., LTD.Inventors: Jeong-yeon Lim, Jae Seob Shin, Sun Young Lee, Se Hoon Son, Tae Young Na, Jae Il Kim
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Patent number: 11778239Abstract: Disclosed is a method and apparatus for encoding/decoding a video. According to an embodiment, provided is a method of setting a level for each of one or more regions, including decoding a definition syntax element related to level definition and a designation syntax element related to target designation from a bitstream; defining one or more levels based on the definition syntax element; and setting a target level designated by the designation syntax element among the defined levels for a target region designated by the designation syntax element.Type: GrantFiled: October 20, 2022Date of Patent: October 3, 2023Assignee: SK TELECOM CO., LTD.Inventors: Jeong-yeon Lim, Jae Seob Shin, Sun Young Lee, Se Hoon Son, Tae Young Na, Jae Il Kim
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Publication number: 20230262213Abstract: Disclosed are an inter-prediction method and an image decoding apparatus using the same. According to an embodiment of the present invention, there is provided an inter-prediction method including extracting a merge candidate flag and offset information from a bitstream, selecting a merge candidate corresponding to the extracted merge candidate flag from a merge candidate list including neighboring blocks of a current block as merge candidates, deciding a motion vector of the current block by applying the offset information to a motion vector of the selected merge candidate, and generating, as a prediction block of the current block, a block indicated by the motion vector of the current block in a reference picture referenced by the selected merge candidate.Type: ApplicationFiled: April 26, 2023Publication date: August 17, 2023Inventors: Tae Young NA, Sun Young LEE, Kyung Hwan KO, Se Hoon SON, Jae Il KIM
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Patent number: 11671584Abstract: Disclosed are an inter-prediction method and an image decoding apparatus using the same. According to an embodiment of the present invention, there is provided an inter-prediction method including extracting a merge candidate flag and offset information from a bitstream, selecting a merge candidate corresponding to the extracted merge candidate flag from a merge candidate list including neighboring blocks of a current block as merge candidates, deciding a motion vector of the current block by applying the offset information to a motion vector of the selected merge candidate, and generating, as a prediction block of the current block, a block indicated by the motion vector of the current block in a reference picture referenced by the selected merge candidate.Type: GrantFiled: May 14, 2021Date of Patent: June 6, 2023Assignee: SK TELECOM CO., LTD.Inventors: Tae Young Na, Sun Young Lee, Kyung Hwan Ko, Se Hoon Son, Jae Il Kim
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Publication number: 20230171433Abstract: Disclosed is a method and apparatus for encoding/decoding a video. According to an embodiment, provided is a method of setting a level for each of one or more regions, including decoding a definition syntax element related to level definition and a designation syntax element related to target designation from a bitstream; defining one or more levels based on the definition syntax element; and setting a target level designated by the designation syntax element among the defined levels for a target region designated by the designation syntax element.Type: ApplicationFiled: October 20, 2022Publication date: June 1, 2023Inventors: Jeong-yeon LIM, Jae Seob SHIN, Sun Young LEE, Se Hoon SON, Tae Young NA, Jae Il KIM
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Publication number: 20230141454Abstract: A method of inter-predicting a current block using any one of a plurality of bi-prediction modes is disclosed. The method comprises decoding, from a bitstream, mode information indicating whether a first mode included in the plurality of bi-prediction modes is applied to the current block. When the mode information indicates that the first mode is applied to the current block, the method further comprises: decoding, from the bitstream, first motion information including differential motion vector information and predicted motion vector information for a first motion vector and second motion information not including at least a portion of predicted motion vector information and differential motion vector information for a second motion vector; and deriving the first motion vector based on the first motion information and deriving the second motion vector based on both at least a portion of the first motion information and the second motion information.Type: ApplicationFiled: December 27, 2022Publication date: May 11, 2023Inventors: Jae Il KIM, Sun Young LEE, Tae Young NA, Se Hoon SON, Jae Seob SHIN
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Publication number: 20230134711Abstract: A method of inter-predicting a current block using any one of a plurality of bi-prediction modes is disclosed. The method comprises decoding, from a bitstream, mode information indicating whether a first mode included in the plurality of bi-prediction modes is applied to the current block. When the mode information indicates that the first mode is applied to the current block, the method further comprises: decoding, from the bitstream, first motion information including differential motion vector information and predicted motion vector information for a first motion vector and second motion information not including at least a portion of predicted motion vector information and differential motion vector information for a second motion vector; and deriving the first motion vector based on the first motion information and deriving the second motion vector based on both at least a portion of the first motion information and the second motion information.Type: ApplicationFiled: December 27, 2022Publication date: May 4, 2023Inventors: Jae Il KIM, Sun Young LEE, Tae Young NA, Se Hoon SON, Jae Seob SHIN
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Publication number: 20230139569Abstract: A method of inter-predicting a current block using any one of a plurality of bi-prediction modes is disclosed. The method comprises decoding, from a bitstream, mode information indicating whether a first mode included in the plurality of bi-prediction modes is applied to the current block. When the mode information indicates that the first mode is applied to the current block, the method further comprises: decoding, from the bitstream, first motion information including differential motion vector information and predicted motion vector information for a first motion vector and second motion information not including at least a portion of predicted motion vector information and differential motion vector information for a second motion vector; and deriving the first motion vector based on the first motion information and deriving the second motion vector based on both at least a portion of the first motion information and the second motion information.Type: ApplicationFiled: December 27, 2022Publication date: May 4, 2023Inventors: Jae Il KIM, Sun Young LEE, Tae Young NA, Se Hoon SON, Jae Seob SHIN
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Publication number: 20230132003Abstract: A method of inter-predicting a current block using any one of a plurality of bi-prediction modes is disclosed. The method comprises decoding, from a bitstream, mode information indicating whether a first mode included in the plurality of bi-prediction modes is applied to the current block. When the mode information indicates that the first mode is applied to the current block, the method further comprises: decoding, from the bitstream, first motion information including differential motion vector information and predicted motion vector information for a first motion vector and second motion information not including at least a portion of predicted motion vector information and differential motion vector information for a second motion vector; and deriving the first motion vector based on the first motion information and deriving the second motion vector based on both at least a portion of the first motion information and the second motion information.Type: ApplicationFiled: December 27, 2022Publication date: April 27, 2023Inventors: Jae Il KIM, Sun Young LEE, Tae Young NA, Se Hoon SON, Jae Seob SHIN