Patents by Inventor Narae Choi
Narae Choi 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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Patent number: 11870981Abstract: Provided are video encoding/decoding methods and apparatuses for determining an intra prediction mode of a current block, based on a width and height of the current block. When the current block has a square shape in which the width and height are equal, the intra prediction mode of the current block is determined from among first intra prediction mode candidates including a plurality of predetermined intra prediction directions, and when the current block has a non-square shape in which the width and height are not equal, the intra prediction mode of the current block is determined from among second intra prediction mode candidates configured based on the non-square shape.Type: GrantFiled: April 4, 2022Date of Patent: January 9, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Narae Choi, Minsoo Park, Minwoo Park, Seungsoo Jeong, Kiho Choi, Woongil Choi, Anish Tamse, Yinji Piao
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Publication number: 20230388510Abstract: Provided is a video decoding method including: obtaining, from a bitstream, intra prediction mode information indicating an intra prediction mode of a current block; determining an interpolation filter set to be used in prediction of the current block, based on at least one of a size of the current block and the intra prediction mode indicated by the intra prediction mode information; determining a reference location to which a current sample of the current block refers according to the intra prediction mode; determining, in the interpolation filter set, an interpolation filter that corresponds to the reference location; determining a prediction value of the current sample, according to reference samples of the current block and the interpolation filter; and reconstructing the current block, based on the prediction value of the current sample.Type: ApplicationFiled: June 2, 2023Publication date: November 30, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Narae CHOI, Minwoo Park, Minsoo Park, Seungsoo Jeong, Kiho Choi, Woongil Choi, Anish Tamse, Yinji Piao
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Publication number: 20230370583Abstract: Provided are a video decoding method and apparatus which, during video encoding and decoding processes, determine whether a current block is in contact with an upper boundary of a largest coding unit including the current block, when it is determined that the current block is in contact with the upper boundary of the largest coding unit, determine an upper reference line of the current block as one reference line, when it is determined that the current block is not in contact with the upper boundary of the largest coding unit, determine the upper reference line of the current block based on N reference lines, and use the determined upper reference line.Type: ApplicationFiled: July 19, 2023Publication date: November 16, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Narae CHOI, Minsoo PARK, Minwoo PARK, Seungsoo JEONG, Kiho CHOI, Woongil CHOI, Anish TAMSE, Yinji PIAO
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Publication number: 20230362358Abstract: Provided are a video decoding method and apparatus which, during video encoding and decoding processes, determine whether a current block is in contact with an upper boundary of a largest coding unit including the current block, when it is determined that the current block is in contact with the upper boundary of the largest coding unit, determine an upper reference line of the current block as one reference line, when it is determined that the current block is not in contact with the upper boundary of the largest coding unit, determine the upper reference line of the current block based on N reference lines, and use the determined upper reference line.Type: ApplicationFiled: July 19, 2023Publication date: November 9, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD,Inventors: Narae CHOI, Minsoo PARK, Minwoo PARK, Seungsoo JEONG, Kiho CHOI, Woongil CHOI, Anish TAMSE, Yinji PIAO
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Publication number: 20230362357Abstract: Provided are a video decoding method and apparatus which, during video encoding and decoding processes, determine whether a current block is in contact with an upper boundary of a largest coding unit including the current block, when it is determined that the current block is in contact with the upper boundary of the largest coding unit, determine an upper reference line of the current block as one reference line, when it is determined that the current block is not in contact with the upper boundary of the largest coding unit, determine the upper reference line of the current block based on N reference lines, and use the determined upper reference line.Type: ApplicationFiled: July 19, 2023Publication date: November 9, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Narae CHOI, Minsoo Park, Minwoo Park, Seungsoo Jeong, Kiho Choi, Woongil Choi, Anish Tamse, Yinji Piao
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Publication number: 20230362359Abstract: Provided are a video decoding method and apparatus which, during video encoding and decoding processes, determine whether a current block is in contact with an upper boundary of a largest coding unit including the current block, when it is determined that the current block is in contact with the upper boundary of the largest coding unit, determine an upper reference line of the current block as one reference line, when it is determined that the current block is not in contact with the upper boundary of the largest coding unit, determine the upper reference line of the current block based on N reference lines, and use the determined upper reference line.Type: ApplicationFiled: July 19, 2023Publication date: November 9, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD Suwon-siInventors: Narae CHOI, Minsoo PARK, Minwoo PARK, Seungsoo JEONG, Kiho CHOI, Woongil CHOI, Anish TAMSE, Yinji PIAO
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Publication number: 20230353727Abstract: Disclosed is an image decoding method according to an embodiment, the image decoding method including: obtaining a first reference block and a second reference block, for bi-directional prediction of a current block; obtaining, from a bitstream, weight information for combining the first reference block with the second reference block; performing entropy decoding on the weight information to obtain a weight index; combining the first reference block with the second reference block according to a candidate value indicated by the weight index among candidate values included in a weight candidate group; and reconstructing the current block based on a result of the combining, wherein a first binary value corresponding to the weight index is entropy-decoded based on a context model, and the remaining binary value corresponding to the weight index is entropy-decoded by a bypass method.Type: ApplicationFiled: July 3, 2023Publication date: November 2, 2023Applicant: Samsung Electronics Co., Ltd.Inventors: Seungsoo JEONG, Gahyun RYU, Minsoo PARK, Minwoo PARK, Kiho CHOI, Narae CHOI, Woongil CHOI, Anish TAMSE, Yinji PIAO
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Publication number: 20230353729Abstract: Disclosed is an image decoding method according to an embodiment, the image decoding method including: obtaining a first reference block and a second reference block, for bi-directional prediction of a current block; obtaining, from a bitstream, weight information for combining the first reference block with the second reference block; performing entropy decoding on the weight information to obtain a weight index; combining the first reference block with the second reference block according to a candidate value indicated by the weight index among candidate values included in a weight candidate group; and reconstructing the current block based on a result of the combining, wherein a first binary value corresponding to the weight index is entropy-decoded based on a context model, and the remaining binary value corresponding to the weight index is entropy-decoded by a bypass method.Type: ApplicationFiled: July 3, 2023Publication date: November 2, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seungsoo JEONG, Gahyun Ryu, Minsoo Park, Minwoo Park, Kiho Choi, Narae Choi, Woongil Choi, Anish Tamse, Yinji Piao
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Publication number: 20230353728Abstract: Disclosed is an image decoding method according to an embodiment, the image decoding method including: obtaining a first reference block and a second reference block, for bi-directional prediction of a current block; obtaining, from a bitstream, weight information for combining the first reference block with the second reference block; performing entropy decoding on the weight information to obtain a weight index; combining the first reference block with the second reference block according to a candidate value indicated by the weight index among candidate values included in a weight candidate group; and reconstructing the current block based on a result of the combining, wherein a first binary value corresponding to the weight index is entropy-decoded based on a context model, and the remaining binary value corresponding to the weight index is entropy-decoded by a bypass method.Type: ApplicationFiled: July 3, 2023Publication date: November 2, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seungsoo JEONG, Gahyun Ryu, Minsoo Park, Minwoo Park, Kiho Choi, Narae Choi, Woongil Choi, Anish Tamse, Yinji Piao
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Publication number: 20230344991Abstract: Disclosed is an image decoding method according to an embodiment, the image decoding method including: obtaining a first reference block and a second reference block, for bi-directional prediction of a current block; obtaining, from a bitstream, weight information for combining the first reference block with the second reference block; performing entropy decoding on the weight information to obtain a weight index; combining the first reference block with the second reference block according to a candidate value indicated by the weight index among candidate values included in a weight candidate group; and reconstructing the current block based on a result of the combining, wherein a first binary value corresponding to the weight index is entropy-decoded based on a context model, and the remaining binary value corresponding to the weight index is entropy-decoded by a bypass method.Type: ApplicationFiled: July 3, 2023Publication date: October 26, 2023Applicant: Samsung Electronics Co., Ltd.Inventors: Seungsoo JEONG, Gahyun RYU, Minsoo PARK, Minwoo PARK, Kiho CHOI, Narae CHOI, Woongil CHOI, Anish TAMSE, Yinji PIAO
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Publication number: 20230328251Abstract: Provided is a video decoding method including: obtaining, from a bitstream, intra prediction mode information indicating an intra prediction mode of a current block; determining an interpolation filter set to be used in prediction of the current block, based on at least one of a size of the current block and the intra prediction mode indicated by the intra prediction mode information; determining a reference location to which a current sample of the current block refers according to the intra prediction mode; determining, in the interpolation filter set, an interpolation filter that corresponds to the reference location; determining a prediction value of the current sample, according to reference samples of the current block and the interpolation filter; and reconstructing the current block, based on the prediction value of the current sample.Type: ApplicationFiled: June 2, 2023Publication date: October 12, 2023Applicant: SAMSUNG ELECTROICS CO., LTD.Inventors: Narae CHOI, Minwoo PARK, Minsoo PARK, Seungsoo JEONG, Kiho CHOI, Woongil CHOI, Anish TAMSE, Yinji PIAO
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Patent number: 11785217Abstract: Provided are a video decoding method and apparatus including: in a video encoding and decoding process, determining parity information of a current block based on a width and a height of the current block; determining a lookup table of the current block from among a plurality of predefined lookup tables based on the parity information; determining a dequantization scale value of the current block based on the lookup table of the current block; and performing dequantization on the current block by using the dequantization scale value.Type: GrantFiled: April 18, 2022Date of Patent: October 10, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Narae Choi, Minwoo Park
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Publication number: 20230319283Abstract: Provided is a video decoding method including: obtaining, from a bitstream, intra prediction mode information indicating an intra prediction mode of a current block; determining an interpolation filter set to be used in prediction of the current block, based on at least one of a size of the current block and the intra prediction mode indicated by the intra prediction mode information; determining a reference location to which a current sample of the current block refers according to the intra prediction mode; determining, in the interpolation filter set, an interpolation filter that corresponds to the reference location; determining a prediction value of the current sample, according to reference samples of the current block and the interpolation filter; and reconstructing the current block, based on the prediction value of the current sample.Type: ApplicationFiled: June 2, 2023Publication date: October 5, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Narae Choi, Minwoo Park, Minsoo Park, Seungsoo Jeong, Kiho Choi, Woongil Choi, Anish Tamse, Yinji Piao
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Publication number: 20230308655Abstract: Provided is a video decoding method including: obtaining, from a bitstream, intra prediction mode information indicating an intra prediction mode of a current block; determining an interpolation filter set to be used in prediction of the current block, based on at least one of a size of the current block and the intra prediction mode indicated by the intra prediction mode information; determining a reference location to which a current sample of the current block refers according to the intra prediction mode; determining, in the interpolation filter set, an interpolation filter that corresponds to the reference location; determining a prediction value of the current sample, according to reference samples of the current block and the interpolation filter; and reconstructing the current block, based on the prediction value of the current sample.Type: ApplicationFiled: June 2, 2023Publication date: September 28, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Narae CHOI, Minwoo Park, Minsoo Park, Seungsoo Jeong, Kiho Choi, Woongil Choi, Anish Tamse, Yinji Piao
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Patent number: 11770530Abstract: Provided are a video decoding method and apparatus including: in a video encoding and decoding process, determining parity information of a current block based on a width and a height of the current block; determining a lookup table of the current block from among a plurality of predefined lookup tables based on the parity information; determining a dequantization scale value of the current block based on the lookup table of the current block; and performing dequantization on the current block by using the dequantization scale value.Type: GrantFiled: April 18, 2022Date of Patent: September 26, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Narae Choi, Minwoo Park
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Patent number: 11770531Abstract: Provided are a video decoding method and apparatus including: in a video encoding and decoding process, determining parity information of a current block based on a width and a height of the current block; determining a lookup table of the current block from among a plurality of predefined lookup tables based on the parity information; determining a dequantization scale value of the current block based on the lookup table of the current block; and performing dequantization on the current block by using the dequantization scale value.Type: GrantFiled: April 18, 2022Date of Patent: September 26, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Narae Choi, Minwoo Park
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Patent number: 11765354Abstract: Provided are a video decoding method and apparatus including: in a video encoding and decoding process, determining parity information of a current block based on a width and a height of the current block; determining a lookup table of the current block from among a plurality of predefined lookup tables based on the parity information; determining a dequantization scale value of the current block based on the lookup table of the current block; and performing dequantization on the current block by using the dequantization scale value.Type: GrantFiled: April 18, 2022Date of Patent: September 19, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Narae Choi, Minwoo Park
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Patent number: 11743467Abstract: Provided is a method of decoding coefficients included in image data, the method including determining a Rice parameter for a current coefficient, based on a base level of the current coefficient; parsing coefficient level information indicating a size of the current coefficient from a bitstream by using the determined Rice parameter; and identifying the size of the current coefficient by de-binarizing the coefficient level information by using the determined Rice parameter.Type: GrantFiled: November 12, 2019Date of Patent: August 29, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yinji Piao, Gahyun Ryu, Minsoo Park, Minwoo Park, Seungsoo Jeong, Kiho Choi, Narae Choi, Woongil Choi, Anish Tamse
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Patent number: 11736682Abstract: Provided are a video decoding method and apparatus which, during video encoding and decoding processes, determine whether a current block is in contact with an upper boundary of a largest coding unit including the current block, when it is determined that the current block is in contact with the upper boundary of the largest coding unit, determine an upper reference line of the current block as one reference line, when it is determined that the current block is not in contact with the upper boundary of the largest coding unit, determine the upper reference line of the current block based on N reference lines, and use the determined upper reference line.Type: GrantFiled: July 11, 2019Date of Patent: August 22, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Narae Choi, Minsoo Park, Minwoo Park, Seungsoo Jeong, Kiho Choi, Woongil Choi, Anish Tamse, Yinji Piao
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Patent number: 11722673Abstract: Provided is a video decoding method including: obtaining, from a bitstream, intra prediction mode information indicating an intra prediction mode of a current block; determining an interpolation filter set to be used in prediction of the current block, based on at least one of a size of the current block and the intra prediction mode indicated by the intra prediction mode information; determining a reference location to which a current sample of the current block refers according to the intra prediction mode; determining, in the interpolation filter set, an interpolation filter that corresponds to the reference location; determining a prediction value of the current sample, according to reference samples of the current block and the interpolation filter; and reconstructing the current block, based on the prediction value of the current sample.Type: GrantFiled: June 11, 2019Date of Patent: August 8, 2023Assignee: SAMSUNG ELEOTRONICS CO., LTD.Inventors: Narae Choi, Minwoo Park, Minsoo Park, Seungsoo Jeong, Kiho Choi, Woongil Choi, Anish Tamse, Yinji Piao