With Error Correction (epo) Patents (Class 375/E7.246)
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Patent number: 12206887Abstract: An image decoding method according to the present invention includes reconstructing a residual block by inverse-quantizing and inverse-transforming an entropy-decoded residual block, generating a prediction block by performing intra prediction on a current block, and reconstructing an picture by adding the reconstructed residual block to the prediction block, wherein generating the prediction block includes generating a final prediction value of a prediction target pixel included in the current block based on a first prediction value of the prediction target pixel and a final correction value calculated by performing an arithmetic right shift on a two's complementary integer representation for an initial correction value of the prediction target pixel by a binary digit of 1. Accordingly, upon image encoding/decoding, computation complexity may be reduced.Type: GrantFiled: April 30, 2024Date of Patent: January 21, 2025Assignee: Electronics and Telecommunications Research InstituteInventors: Hui Yong Kim, Jin Ho Lee, Sung Chang Lim, Jin Soo Choi, Jin Woong Kim
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Patent number: 12003752Abstract: An image decoding method according to the present invention includes reconstructing a residual block by inverse-quantizing and inverse-transforming an entropy-decoded residual block, generating a prediction block by performing intra prediction on a current block, and reconstructing an picture by adding the reconstructed residual block to the prediction block, wherein generating the prediction block includes generating a final prediction value of a prediction target pixel included in the current block based on a first prediction value of the prediction target pixel and a final correction value calculated by performing an arithmetic right shift on a two's complementary integer representation for an initial correction value of the prediction target pixel by a binary digit of 1. Accordingly, upon image encoding/decoding, computation complexity may be reduced.Type: GrantFiled: May 22, 2023Date of Patent: June 4, 2024Assignee: Electronics and Telecommunications Research InstituteInventors: Hui Yong Kim, Jin Ho Lee, Sung Chang Lim, Jin Soo Choi, Jin Woong Kim
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Patent number: 11962803Abstract: The multi sample prediction method of the present invention comprises the steps of: determining a sample group consisting of a plurality of samples inside a decoding target block; determining a representative position corresponding to the sample group, inside the decoding target block; determining a representative prediction value for the sample group, on the basis of the determined representative position; and determining the determined representative prediction value as the final prediction value for each of the plurality of samples making up the sample group. The present invention enhances efficiency in encoding/decoding and reduces complexity thereof.Type: GrantFiled: May 31, 2023Date of Patent: April 16, 2024Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jin Ho Lee, Hui Yong Kim, Sung Chang Lim, Jong Ho Kim, Ha Hyun Lee, Jin Soo Choi, Jin Woong 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: 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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Patent number: 11706438Abstract: An image decoding method according to the present invention includes reconstructing a residual block by inverse-quantizing and inverse-transforming an entropy-decoded residual block, generating a prediction block by performing intra prediction on a current block, and reconstructing an picture by adding the reconstructed residual block to the prediction block, wherein generating the prediction block includes generating a final prediction value of a prediction target pixel included in the current block based on a first prediction value of the prediction target pixel and a final correction value calculated by performing an arithmetic right shift on a two's complementary integer representation for an initial correction value of the prediction target pixel by a binary digit of 1. Accordingly, upon image encoding/decoding, computation complexity may be reduced.Type: GrantFiled: December 7, 2021Date of Patent: July 18, 2023Assignee: Electronics and Telecommunications Research InstituteInventors: Hui Yong Kim, Jin Ho Lee, Sung Chang Lim, Jin Soo Choi, Jin Woong Kim
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Patent number: 11706449Abstract: The multi sample prediction method of the present invention comprises the steps of: determining a sample group consisting of a plurality of samples inside a decoding target block; determining a representative position corresponding to the sample group, inside the decoding target block; determining a representative prediction value for the sample group, on the basis of the determined representative position; and determining the determined representative prediction value as the final prediction value for each of the plurality of samples making up the sample group. The present invention enhances efficiency in encoding/decoding and reduces complexity thereof.Type: GrantFiled: April 29, 2022Date of Patent: July 18, 2023Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jin Ho Lee, Hui Yong Kim, Sung Chang Lim, Jong Ho Kim, Ha Hyun Lee, Jin Soo Choi, Jin Woong Kim
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Video encoding method, video decoding method, video encoding apparatus, and video decoding apparatus
Patent number: 11546606Abstract: A video encoding method of performing scalable encoding on input video includes: determining a total number of layers of the scalable encoding to be less than or equal to a maximum layer count determined according to a frame rate; and performing the scalable encoding on the input video to generate a bitstream, using the determined total number of layers.Type: GrantFiled: December 15, 2020Date of Patent: January 3, 2023Assignee: SUN PATENT TRUSTInventors: Kengo Terada, Takahiro Nishi, Hisao Sasai, Satoshi Yoshikawa -
Patent number: 8514948Abstract: A video transmission system includes a transceiver module that transmits a video signal to a remote device over at least one communications channel wherein the video signal is transmitted as at least one separate video layer stream chosen from, an independent video layer stream and at least one dependent video layer streams that require the independent video layer for decoding. A control module determines at least one channel characteristic of the at least one channel and chooses the at least one separate video layer stream based on the at least one channel characteristic of the at least one channel.Type: GrantFiled: September 26, 2012Date of Patent: August 20, 2013Assignee: Broadcom CorporationInventors: Stephen E. Gordon, Sherman (Xuemin) Chen, Michael Dove, David Rosmann, Thomas J. Quigley, Jeyhan Karaoguz
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Patent number: 8411745Abstract: Disclosed are a method and an apparatus of encoding/decoding by using a bit precision. In accordance to an aspect of the present invention, it is possible to encoding and decoding an image or a video by using a bit precision. Accordingly, compression efficiency can be improved and the decoding complexity can be reduced by encoding/decoding video data by use of the bit precision.Type: GrantFiled: July 18, 2008Date of Patent: April 2, 2013Assignee: Humax Co., Ltd.Inventors: Euee-Seon Jang, Sun-Young Lee, Gi-Seok Son, Chung-Ku Lee