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公开(公告)号：US20170244974A1
公开(公告)日：2017-08-24
申请号：US15588167
申请日：2017-05-05
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jung-hye MIN , Elena ALSHINA , Mikhail MISHUROVSKIY , Yin-ji PIAO
IPC: H04N19/176 , H04N19/167 , H04N19/117 , H04N19/107
CPC classification number: H04N19/176 , H04N19/105 , H04N19/107 , H04N19/117 , H04N19/167 , H04N19/593
Abstract: Provided is an image encoding method including determining at least one sample value related to a first block, based on sample values of previously-reconstructed reference samples; determining at least one pattern in which samples of the first block are to be arranged; generating one or more candidate prediction blocks for the first block, based on the at least one sample value and the at least one pattern; and determining prediction values of the samples of the first block, based on one of the one or more candidate prediction blocks.
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公开(公告)号：US20170104996A1
公开(公告)日：2017-04-13
申请号：US15385983
申请日：2016-12-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Elena ALSHINA , Alexander ALSHIN
IPC: H04N19/122 , H04N19/124 , H04N19/18 , H04N19/625
CPC classification number: H04N19/122 , G06F17/147 , H04N19/115 , H04N19/124 , H04N19/126 , H04N19/136 , H04N19/146 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/184 , H04N19/34 , H04N19/42 , H04N19/44 , H04N19/45 , H04N19/60 , H04N19/625
Abstract: Provided are a video encoding method of adjusting a range of encoded output data to adjust a bit depth during restoring of encoded samples, and a video decoding method of substantially preventing overflow from occurring in output data in operations of a decoding process. The video decoding method includes parsing and restoring quantized transformation coefficients in units of blocks of an image from a received bitstream, restoring transformation coefficients by performing inverse quantization on the quantized transformation coefficients, and restoring samples by performing one-dimensional (1D) inverse transformation and inverse scaling on the quantized transformation coefficients. At least one from among the transformation coefficients and the samples has a predetermined bit depth or less.
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公开(公告)号：US20160286236A1
公开(公告)日：2016-09-29
申请号：US15173088
申请日：2016-06-03
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Elena ALSHINA , Alexander ALSHIN
IPC: H04N19/625 , H04N19/176 , H04N19/34 , H04N19/124
CPC classification number: H04N19/122 , G06F17/147 , H04N19/115 , H04N19/124 , H04N19/126 , H04N19/136 , H04N19/146 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/184 , H04N19/34 , H04N19/42 , H04N19/44 , H04N19/45 , H04N19/60 , H04N19/625
Abstract: Provided are a video encoding method of adjusting a range of encoded output data to adjust a bit depth during restoring of encoded samples, and a video decoding method of substantially preventing overflow from occurring in output data in operations of a decoding process. The video decoding method includes parsing and restoring quantized transformation coefficients in units of blocks of an image from a received bitstream, restoring transformation coefficients by performing inverse quantization on the quantized transformation coefficients, and restoring samples by performing one-dimensional (1D) inverse transformation and inverse scaling on the quantized transformation coefficients. At least one from among the transformation coefficients and the samples has a predetermined bit depth or less.
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公开(公告)号：US20150326885A1
公开(公告)日：2015-11-12
申请号：US14802584
申请日：2015-07-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Alexander ALSHIN , Elena ALSHINA , Nikolay SHLYAKHOV
IPC: H04N19/65 , H04N19/40 , H04N19/176 , H04N19/182
CPC classification number: H04N19/65 , G06K9/4604 , H04N19/117 , H04N19/136 , H04N19/137 , H04N19/17 , H04N19/176 , H04N19/182 , H04N19/196 , H04N19/40 , H04N19/44 , H04N19/463 , H04N19/82 , H04N19/85 , H04N19/96
Abstract: Provided are a method and apparatus of encoding a video by compensating for a pixel value and a method and apparatus of decoding a video by compensating for a pixel value. The method of encoding the video includes: encoding image data; decoding the encoded image data and generating a restored image by performing loop filtering on the decoded image data; determining a compensation value corresponding to errors between a predetermined group restored pixels in the restored image and corresponding original pixels, and a pixel group including a restored pixel to be compensated for by using the compensation value; and encoding the compensation value and transmitting the encoded compensation value and a bitstream of the encoded image data.
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公开(公告)号：US20150326879A1
公开(公告)日：2015-11-12
申请号：US14802651
申请日：2015-07-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Elena ALSHINA , Alexander ALSHIN , Vadim SEREGIN , Nikolay SHLYAKHOV , Maxim KOROTEEV
IPC: H04N19/593 , H04N19/176
CPC classification number: H04N19/13 , H04N19/11 , H04N19/117 , H04N19/119 , H04N19/176 , H04N19/182 , H04N19/198 , H04N19/33 , H04N19/50 , H04N19/593 , H04N19/82 , H04N19/91
Abstract: A video encoding method and apparatus and a video decoding method and apparatus. In the video encoding method, a first predicted coding unit of a current coding unit that is to be encoded is produced, a second predicted coding unit is produced by changing a value of each pixel of the first predicted coding unit by using each pixel of the first predicted coding unit and at least one neighboring pixel of each pixel, and the difference between the current coding unit and the second predicted coding unit is encoded, thereby improving video prediction efficiency.
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Patent Agency Ranking
公开(公告)号：US20150245058A1
公开(公告)日：2015-08-27
申请号：US14632132
申请日：2015-02-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Alexander ALSHIN , Elena ALSHINA , Jianle CHEN , Woo-jin HAN , Nikolay SHLYAKHOV , Yoon-mi HONG
IPC: H04N19/523 , H04N19/59 , H04N19/82 , H04N19/513
CPC classification number: H04N19/86 , G06F17/17 , G06F17/175 , G06T3/4007 , G06T5/002 , H04N19/117 , H04N19/182 , H04N19/186 , H04N19/42 , H04N19/43 , H04N19/521 , H04N19/523 , H04N19/59 , H04N19/635 , H04N19/80 , H04N19/82
Abstract: Provided are a method of interpolating an image by determining interpolation filter coefficients, and an apparatus for performing the same. The method includes: differently selecting an interpolation filter, from among interpolation filters for generating at least one sub-pel-unit pixel value located between integer-pel-unit pixels, based on a sub-pel-unit interpolation location and a smoothness; and generating the at least one sub-pel-unit pixel value by interpolating, using the selected interpolation filter, pixel values of the integer-pel-unit pixels.
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公开(公告)号：US20150215620A1
公开(公告)日：2015-07-30
申请号：US14603297
申请日：2015-01-22
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Elena ALSHINA , Alexander ALSHIN
IPC: H04N19/122 , H04N19/146 , H04N19/18
CPC classification number: H04N19/122 , G06F17/147 , H04N19/115 , H04N19/124 , H04N19/126 , H04N19/136 , H04N19/146 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/184 , H04N19/34 , H04N19/42 , H04N19/44 , H04N19/45 , H04N19/60 , H04N19/625
Abstract: Provided are a video encoding method of adjusting a range of encoded output data to adjust a bit depth during restoring of encoded samples, and a video decoding method of substantially preventing overflow from occurring in output data in operations of a decoding process. The video decoding method includes parsing and restoring quantized transformation coefficients in units of blocks of an image from a received bitstream, restoring transformation coefficients by performing inverse quantization on the quantized transformation coefficients, and restoring samples by performing one-dimensional (1D) inverse transformation and inverse scaling on the quantized transformation coefficients. At least one from among the transformation coefficients and the samples has a predetermined bit depth or less.
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公开(公告)号：US20150189293A1
公开(公告)日：2015-07-02
申请号：US14658949
申请日：2015-03-16
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Alexander ALSHIN , Elena ALSHINA , Nikolay SHLYAKHOV
IPC: H04N19/182 , H04N19/117
CPC classification number: H04N19/65 , G06K9/4604 , H04N19/117 , H04N19/136 , H04N19/137 , H04N19/17 , H04N19/176 , H04N19/182 , H04N19/196 , H04N19/40 , H04N19/44 , H04N19/463 , H04N19/82 , H04N19/85 , H04N19/96
Abstract: Provided are a method and apparatus of encoding a video by compensating for a pixel value and a method and apparatus of decoding a video by compensating for a pixel value. The method of encoding the video includes: encoding image data; decoding the encoded image data and generating a restored image by performing loop filtering on the decoded image data; determining a compensation value corresponding to errors between a predetermined group restored pixels in the restored image and corresponding original pixels, and a pixel group including a restored pixel to be compensated for by using the compensation value; and encoding the compensation value and transmitting the encoded compensation value and a bitstream of the encoded image data.
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公开(公告)号：US20150139335A1
公开(公告)日：2015-05-21
申请号：US14603097
申请日：2015-01-22
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Elena ALSHINA , Alexander ALSHIN
CPC classification number: H04N19/463 , G06T5/001 , H04N19/117 , H04N19/137 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/189 , H04N19/44 , H04N19/50 , H04N19/625 , H04N19/85 , H04N19/89 , H04N19/90
Abstract: A video encoding method and apparatus and video decoding method and apparatus generate a restored image having a minimum error with respect to an original image based on offset merge information indicating whether offset parameters of a current block and at least one neighboring block from among blocks of video are identical.
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公开(公告)号：US20140105296A1
公开(公告)日：2014-04-17
申请号：US14107802
申请日：2013-12-16
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Elena ALSHINA , Alexander ALSHIN , Vadim SEREGIN , Nikolay SHLYAKHOV , Maxim KOROTEEV
IPC: H04N19/50
CPC classification number: H04N19/13 , H04N19/11 , H04N19/117 , H04N19/119 , H04N19/176 , H04N19/182 , H04N19/198 , H04N19/33 , H04N19/50 , H04N19/593 , H04N19/82 , H04N19/91
Abstract: A video encoding method and apparatus and a video decoding method and apparatus. In the video encoding method, a first predicted coding unit of a current coding unit that is to be encoded is produced, a second predicted coding unit is produced by changing a value of each pixel of the first predicted coding unit by using each pixel of the first predicted coding unit and at least one neighboring pixel of each pixel, and the difference between the current coding unit and the second predicted coding unit is encoded, thereby improving video prediction efficiency.
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