公开(公告)号：US08824549B2

公开(公告)日：2014-09-02

申请号：US13683749

申请日：2012-11-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Elena Alshina ,  Alexander Alshin ,  Vadim Seregin ,  Nikolay Shlyakhov ,  Maxim Koroteev

IPC: H04N7/12 ,  H04N7/26 ,  H04N7/32 ,  H04N7/34

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.

公开(公告)号：US10306262B2

公开(公告)日：2019-05-28

申请号：US16016031

申请日：2018-06-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woo-jin Han ,  Elena Alshina ,  Jung-hye Min ,  Alexander Alshin ,  Il-koo Kim ,  Nikolay Shlyakhov ,  Tammy Lee ,  Sun-il Lee ,  Min-su Cheon ,  Jianle Chen ,  Vadim Seregin ,  Yoon-mi Hong

IPC: H04N19/50 ,  H04N19/59 ,  H04N19/176 ,  H04N19/196 ,  H04N19/80 ,  H04N19/119 ,  H04N19/147 ,  H04N19/61 ,  H04N19/96 ,  H04N19/513 ,  H04N19/593 ,  H04N19/44 ,  H04N19/52 ,  H04N19/172 ,  H04N19/159 ,  H04N19/139 ,  H04N19/117 ,  H04N19/82 ,  H04N19/86 ,  H04N19/30 ,  H04N19/184

Abstract: A method of encoding a video is provided, the method includes: determining a filtering boundary on which deblocking filtering is to be performed based on at least one data unit from among a plurality of coding units that are hierarchically configured according to depths indicating a number of times at least one maximum coding unit is spatially spilt, and a plurality of prediction units and a plurality of transformation units respectively for prediction and transformation of the plurality of coding units, determining filtering strength at the filtering boundary based on a prediction mode of a coding unit to which pixels adjacent to the filtering belong from among the plurality of coding units, and transformation coefficient values of the pixels adjacent to the filtering boundary, and performing deblocking filtering on the filtering boundary based on the determined filtering strength.

公开(公告)号：US10027972B2

公开(公告)日：2018-07-17

申请号：US15647720

申请日：2017-07-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woo-jin Han ,  Elena Alshina ,  Jung-hye Min ,  Alexander Alshin ,  Il-koo Kim ,  Nikolay Shlyakhov ,  Tammy Lee ,  Sun-il Lee ,  Min-su Cheon ,  Jianle Chen ,  Vadim Seregin ,  Yoon-mi Hong

IPC: H04N7/12 ,  H04N19/50 ,  H04N19/176 ,  H04N19/196 ,  H04N19/80 ,  H04N19/119 ,  H04N19/147 ,  H04N19/61 ,  H04N19/96 ,  H04N19/513 ,  H04N19/593 ,  H04N19/44 ,  H04N19/52 ,  H04N19/172 ,  H04N19/159 ,  H04N19/139 ,  H04N19/117 ,  H04N19/82 ,  H04N19/86 ,  H04N19/184

CPC classification number: H04N19/59 ,  H04N19/117 ,  H04N19/119 ,  H04N19/139 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/197 ,  H04N19/30 ,  H04N19/44 ,  H04N19/50 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61 ,  H04N19/80 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

Abstract: A method of encoding a video is provided, the method includes: determining a filtering boundary on which deblocking filtering is to be performed based on at least one data unit from among a plurality of coding units that are hierarchically configured according to depths indicating a number of times at least one maximum coding unit is spatially spilt, and a plurality of prediction units and a plurality of transformation units respectively for prediction and transformation of the plurality of coding units, determining filtering strength at the filtering boundary based on a prediction mode of a coding unit to which pixels adjacent to the filtering belong from among the plurality of coding units, and transformation coefficient values of the pixels adjacent to the filtering boundary, and performing deblocking filtering on the filtering boundary based on the determined filtering strength.

公开(公告)号：US09424625B2

公开(公告)日：2016-08-23

申请号：US14636841

申请日：2015-03-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena Alshina ,  Alexander Alshin ,  Nikolay Shlyakhov ,  Byeong-doo Choi ,  Yoon-mi Hong ,  Woo-jin Han ,  Tammy Lee

IPC: G06K9/72 ,  G06T3/40 ,  H04N19/48 ,  H04N19/80 ,  H04N19/523 ,  H04N19/59 ,  H04N19/117 ,  H04N19/182 ,  H04N7/01 ,  H04N19/30

CPC classification number: G06T3/4007 ,  G06F17/175 ,  H04N7/014 ,  H04N19/117 ,  H04N19/182 ,  H04N19/30 ,  H04N19/48 ,  H04N19/523 ,  H04N19/59 ,  H04N19/80

Abstract: Provided are a method and apparatus for interpolating an image. The method includes: selecting a first filter, from among a plurality of different filters, for interpolating between pixel values of integer pixel units, according to an interpolation location; and generating at least one pixel value of at least one fractional pixel unit by interpolating between the pixel values of the integer pixel units by using the selected first filter.

公开(公告)号：US09277247B2

公开(公告)日：2016-03-01

申请号：US14632169

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: H04N19/86 ,  H04N19/635 ,  H04N19/43 ,  H04N19/182 ,  H04N19/59 ,  H04N19/523 ,  H04N19/117 ,  H04N19/82 ,  H04N19/186 ,  G06T3/40 ,  G06T5/00 ,  G06F17/17

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.

公开(公告)号：US09253507B2

公开(公告)日：2016-02-02

申请号：US14632176

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: H04N19/86 ,  H04N19/635 ,  H04N19/43 ,  H04N19/182 ,  H04N19/59 ,  H04N19/523 ,  H04N19/117 ,  H04N19/82 ,  H04N19/186 ,  G06T3/40 ,  G06T5/00 ,  G06F17/17

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.

公开(公告)号：US09179167B2

公开(公告)日：2015-11-03

申请号：US14632155

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: H04N19/86 ,  H04N19/635 ,  H04N19/43 ,  H04N19/182 ,  H04N19/59 ,  H04N19/523 ,  H04N19/117 ,  H04N19/82 ,  G06T3/40 ,  G06T5/00 ,  G06F17/17

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.

公开(公告)号：US09118914B2

公开(公告)日：2015-08-25

申请号：US14627042

申请日：2015-02-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Alexander Alshin ,  Elena Alshina ,  Nikolay Shlyakhov

IPC: H04N19/00 ,  H04N19/136 ,  H04N19/44 ,  H04N19/137 ,  G06K9/46

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.