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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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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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Patent Agency Ranking
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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49.发明申请公开(公告)号：US20140105287A1
公开(公告)日：2014-04-17
申请号：US14107910
申请日：2013-12-16
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Elena ALSHINA , Alexander ALSHIN , Vadim SEREGIN , Nikolay SHLYAKHOV , Maxim KOROTEEV
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.
Abstract translation: 视频编码方法和装置以及视频解码方法和装置。 在视频编码方法中，产生要编码的当前编码单元的第一预测编码单元，通过使用第一预测编码单元的每个像素来改变第一预测编码单元的每个像素的值来产生第二预测编码单元 第一预测编码单元和每个像素的至少一个相邻像素，并且对当前编码单元和第二预测编码单元之间的差进行编码，从而提高视频预测效率。
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50.发明公开公开(公告)号：US20240129492A1
公开(公告)日：2024-04-18
申请号：US18514011
申请日：2023-11-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Elena ALSHINA , Alexander ALSHIN
IPC: H04N19/159 , H04N19/105 , H04N19/176 , H04N19/573
CPC classification number: H04N19/159 , H04N19/105 , H04N19/176 , H04N19/573
Abstract: Provided is a video decoding method including: obtaining a first motion vector indicating a first reference block of a current block in a first reference picture and a second motion vector indicating a second reference block of the current block in a second reference picture; obtaining a parameter related to pixel group unit motion compensation of the current block, based on at least one of information of the parameter related to the pixel group unit motion compensation and a parameter related to an image including the current picture; generating a prediction block by performing, with respect to the current block, block unit motion compensation based on the first motion vector and the second motion vector and performing the pixel group unit motion compensation based on the parameter related to the pixel group unit motion compensation; and reconstructing the current block. Here, a pixel group may include at least one pixel.
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