公开(公告)号：US08842734B2

公开(公告)日：2014-09-23

申请号：US14015476

申请日：2013-08-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jianle Chen ,  Min-su Cheon ,  Jae-chool Lee ,  Jung-hye Min ,  Hae-kyung Jung ,  Il-koo Kim ,  Sang-rae Lee ,  Kyo-hyuk Lee

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/46 ,  H04N19/176 ,  H04N19/132 ,  H04N19/44 ,  H04N19/119 ,  H04N19/19 ,  H04N19/122 ,  H04N19/147 ,  H04N19/96 ,  H04N19/30 ,  H04N19/50 ,  H04N19/103 ,  H04N19/61

CPC classification number: H04N19/50 ,  H04N19/103 ,  H04N19/105 ,  H04N19/119 ,  H04N19/122 ,  H04N19/132 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/30 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61 ,  H04N19/96 ,  Y02T10/84

Abstract: Disclosed is a method of encoding a video, the method including: splitting a current picture into at least one maximum coding unit; determining a coded depth to output a final encoding result according to at least one split region obtained by splitting a region of the maximum coding unit according to depths, by encoding the at least one split region, based on a depth that deepens in proportion to the number of times the region of the maximum coding unit is split; and outputting image data constituting the final encoding result according to the at least one split region, and encoding information about the coded depth and a prediction mode, according to the at least one maximum coding unit.

Abstract translation: 公开了一种对视频进行编码的方法，该方法包括：将当前画面分割成至少一个最大编码单元; 根据至少一个分割区域确定编码深度以输出最终的编码结果，所述至少一个分割区域通过根据深度与所述最大编码单元的比例增加的深度来编码所述至少一个分割区域来分割所述最大编码单元的区域， 分割最大编码单位的区域的次数; 以及根据所述至少一个分割区域输出构成最终编码结果的图像数据，以及根据所述至少一个最大编码单元编码关于编码深度的信息和预测模式。

公开(公告)号：US08792737B2

公开(公告)日：2014-07-29

申请号：US13969841

申请日：2013-08-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tammy Lee ,  Woo-jin Han ,  Jianle Chen ,  Hae-kyung Jung

IPC: G06K9/36 ,  H04N7/12 ,  H04N7/26 ,  H04N7/50

CPC classification number: H04N19/625 ,  G06T9/00 ,  H04N19/107 ,  H04N19/119 ,  H04N19/122 ,  H04N19/169 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: Disclosed are an image encoding method and apparatus for encoding an image by grouping a plurality of adjacent prediction units into a transformation unit and transforming the plurality of adjacent prediction into a frequency domain, and an image decoding method and apparatus for decoding an image encoded by using the image encoding method and apparatus.

公开(公告)号：US08515190B2

公开(公告)日：2013-08-20

申请号：US13670149

申请日：2012-11-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tammy Lee ,  Woo-jin Han ,  Jianle Chen ,  Hae-kyung Jung

IPC: G06K9/36 ,  H04N7/12

CPC classification number: H04N19/625 ,  G06T9/00 ,  H04N19/107 ,  H04N19/119 ,  H04N19/122 ,  H04N19/169 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: Disclosed are an image encoding method and apparatus for encoding an image by grouping a plurality of adjacent prediction units into a transformation unit and transforming the plurality of adjacent prediction into a frequency domain, and an image decoding method and apparatus for decoding an image encoded by using the image encoding method and apparatus.

Abstract translation: 公开了一种图像编码方法和装置，用于通过将多个相邻预测单元分组为变换单元并将多个相邻预测变换为频域来对图像进行编码，以及图像解码方法和装置，用于对通过使用 图像编码方法和装置。

公开(公告)号：US10291919B2

公开(公告)日：2019-05-14

申请号：US15851228

申请日：2017-12-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee ,  Jianle Chen

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/176 ,  H04N19/11 ,  H04N19/136 ,  H04N19/182 ,  H04N19/593

Abstract: A method and apparatus for intra predicting a video. The method includes: determining availability of a predetermined number of adjacent pixels used for intra prediction of a current block; if a first adjacent pixel is unavailable, searching for a second adjacent pixel that is available by searching the predetermined number of adjacent pixels in a predetermined direction based on the first adjacent pixel; and replacing a pixel value of the first adjacent pixel with a pixel value of a found second adjacent pixel. At least one third adjacent pixel in another location, which is not available and excludes the first adjacent pixel at a predetermined location, is sequentially replaced by using a directly adjacent pixel in a predetermined direction.

公开(公告)号：US10205942B2

公开(公告)日：2019-02-12

申请号：US15705325

申请日：2017-09-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chang-Hyun Lee ,  Tammy Lee ,  Jianle Chen ,  Dae-sung Cho ,  Woo-jin Han ,  Il-koo Kim

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/103 ,  H04N19/61 ,  H04N19/119 ,  H04N19/57 ,  H04N19/176 ,  H04N19/46

Abstract: A video encoding method and apparatus and a video decoding method and apparatus are provided. The video encoding method includes: prediction encoding in units of a coding unit as a data unit for encoding a picture, by using partitions determined based on a first partition mode and a partition level, so as to select a partition for outputting an encoding result from among the determined partitions; and encoding and outputting partition information representing a first partition mode and a partition level of the selected partition. The first partition mode represents a shape and directionality of a partition as a data unit for performing the prediction encoding on the coding unit, and the partition level represents a degree to which the coding unit is split into partitions for detailed motion prediction.

公开(公告)号：US10045042B2

公开(公告)日：2018-08-07

申请号：US14724209

申请日：2015-05-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee ,  Jianle Chen

IPC: H04N19/52 ,  H04N19/593 ,  H04N19/82 ,  H04N19/13 ,  H04N19/51 ,  H04N19/61 ,  H04N19/91 ,  H04N19/96

Abstract: Provided are a method and apparatus for intra predicting an image, which generate a prediction value via linear interpolation in horizontal and vertical directions of a current prediction unit. The method includes: generating first and second virtual pixels by using at least one adjacent pixel located upper right and lower left to a current prediction unit; obtaining a first prediction value of a current pixel via linear interpolation using an adjacent left pixel located on the same line as the first virtual pixel and the current pixel; obtaining a second prediction value of the current pixel via linear interpolation using an adjacent upper pixel located on the same column as the second virtual pixel and the current pixel; and obtaining a prediction value of the current pixel by using the first and second prediction values.

公开(公告)号：US10038918B2

公开(公告)日：2018-07-31

申请号：US15700668

申请日：2017-09-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yoon-Mi Hong ,  Woo-Jin Han ,  Min-Su Cheon ,  Jianle Chen

IPC: H04N19/60 ,  H04N19/126 ,  G06F17/14 ,  H04N19/176 ,  H04N19/625 ,  G06F7/32

CPC classification number: H04N19/60 ,  G06F17/147 ,  H04N19/126 ,  H04N19/176 ,  H04N19/625

Abstract: A video encoding method, a video encoding apparatus, a video decoding method, and a video decoding apparatus are provided. The video encoding method includes producing a fast transform matrix based on a transform matrix which is used for frequency transformation on a block which has a predetermined size; producing a transformed block by transforming the block having the predetermined size by using the fast transform matrix; and performing scaling with respect to the transformed block in order to correct a difference between the transform matrix used for the frequency transformation and the fast transform matrix.

公开(公告)号：US09912951B2

公开(公告)日：2018-03-06

申请号：US15212649

申请日：2016-07-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim Seregin ,  Jianle Chen

IPC: H04N7/12 ,  H04N19/129 ,  H04N19/60 ,  H04N19/96 ,  H04N19/136 ,  H04N19/18 ,  H04N19/186 ,  H04N19/625

CPC classification number: H04N19/129 ,  H04N19/136 ,  H04N19/18 ,  H04N19/186 ,  H04N19/60 ,  H04N19/625 ,  H04N19/96

Abstract: Provided are encoding and decoding methods and apparatuses for a video by selectively determining and using a scan mode. The video encoding method includes: generating transformation coefficients by performing transformation based on a transformation unit to encode an image; determining a scan mode, from among a plurality of scan modes, indicating a scanning direction of the generated transformation coefficients, based on characteristics of the transformation coefficients; and determining and outputting an encoding order of the generated transformation coefficients based on the scanning direction of the determined scan mode.

公开(公告)号：US09883191B2

公开(公告)日：2018-01-30

申请号：US15352103

申请日：2016-11-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee ,  Jianle Chen

IPC: H04N19/159 ,  H04N19/105 ,  H04N19/176 ,  H04N19/11 ,  H04N19/136 ,  H04N19/182 ,  H04N19/593

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/136 ,  H04N19/176 ,  H04N19/182 ,  H04N19/593

Abstract: A method and apparatus for intra predicting a video. The method includes: determining availability of a predetermined number of adjacent pixels used for intra prediction of a current block; if a first adjacent pixel is unavailable, searching for a second adjacent pixel that is available by searching the predetermined number of adjacent pixels in a predetermined direction based on the first adjacent pixel; and replacing a pixel value of the first adjacent pixel with a pixel value of a found second adjacent pixel. At least one third adjacent pixel in another location, which is not available and excludes the first adjacent pixel at a predetermined location, is sequentially replaced by using a directly adjacent pixel in a predetermined direction.

公开(公告)号：US09118933B1

公开(公告)日：2015-08-25

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: H04N19/86 ,  H04N19/635 ,  H04N19/43 ,  H04N19/182 ,  H04N19/59 ,  H04N19/523 ,  H04N19/117 ,  H04N19/82 ,  H04N19/80 ,  G06F17/17 ,  G06T3/40 ,  G06T5/00 ,  H04N19/42

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.