公开(公告)号：US11303883B2

公开(公告)日：2022-04-12

申请号：US16939663

申请日：2020-07-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/103 ,  H04N19/119 ,  H04N19/176 ,  H04N19/57 ,  H04N19/46 ,  H04N19/61

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：US10536697B2

公开(公告)日：2020-01-14

申请号：US15517357

申请日：2014-12-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dai-woong Choi ,  Woong-il Choi ,  Dae-sung Cho

IPC: H04N19/124 ,  H04N19/184 ,  H04N19/625 ,  H04N19/91

Abstract: Provided is a re-encoding method including obtaining a first quantization table from a bitstream including an image encoded using the first quantization table; obtaining a second quantization table based on a pattern representing a size distribution of values of elements of the first quantization table, the second quantization table including elements respectively corresponding to the elements of the first quantization table; and re-encoding a reconstructed image by using the second quantization table, the reconstructed image being obtained by decoding the encoded image by using the first quantization table.

公开(公告)号：US09781432B2

公开(公告)日：2017-10-03

申请号：US14741741

申请日：2015-06-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woo-shik Kim ,  Dae-sung Cho ,  Shi-hwa Lee ,  Sang-wook Kim

IPC: H04N7/18 ,  H04N19/13 ,  G06T9/00 ,  H04N19/147 ,  H04N19/46 ,  H04N19/61 ,  H04N19/60 ,  H04N19/124 ,  H04N19/126 ,  H04N19/154 ,  H04N19/174 ,  H04N19/17 ,  H04N19/179 ,  H04N19/176 ,  H04N19/91 ,  H04N19/134 ,  H04N19/137 ,  H04N19/44 ,  H04N19/625

CPC classification number: H04N19/13 ,  G06T9/005 ,  H04N19/124 ,  H04N19/126 ,  H04N19/134 ,  H04N19/137 ,  H04N19/147 ,  H04N19/154 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/179 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625 ,  H04N19/91

Abstract: An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.

公开(公告)号：US09781430B2

公开(公告)日：2017-10-03

申请号：US14741724

申请日：2015-06-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woo-shik Kim ,  Dae-sung Cho ,  Shi-hwa Lee ,  Sang-wook Kim

IPC: H04N7/18 ,  H04N19/13 ,  G06T9/00 ,  H04N19/147 ,  H04N19/46 ,  H04N19/61 ,  H04N19/60 ,  H04N19/124 ,  H04N19/126 ,  H04N19/154 ,  H04N19/174 ,  H04N19/17 ,  H04N19/179 ,  H04N19/176 ,  H04N19/91 ,  H04N19/134 ,  H04N19/137 ,  H04N19/44 ,  H04N19/625

CPC classification number: H04N19/13 ,  G06T9/005 ,  H04N19/124 ,  H04N19/126 ,  H04N19/134 ,  H04N19/137 ,  H04N19/147 ,  H04N19/154 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/179 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625 ,  H04N19/91

Abstract: An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.

公开(公告)号：US09781425B2

公开(公告)日：2017-10-03

申请号：US14628341

申请日：2015-02-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woo-shik Kim ,  Dae-sung Cho ,  Shi-hwa Lee ,  Sang-wook Kim

IPC: H04N7/18 ,  H04N19/13 ,  G06T9/00 ,  H04N19/147 ,  H04N19/46 ,  H04N19/61 ,  H04N19/60 ,  H04N19/124 ,  H04N19/126 ,  H04N19/154 ,  H04N19/174 ,  H04N19/17 ,  H04N19/179 ,  H04N19/176 ,  H04N19/91 ,  H04N19/134 ,  H04N19/137 ,  H04N19/44 ,  H04N19/625

CPC classification number: H04N19/13 ,  G06T9/005 ,  H04N19/124 ,  H04N19/126 ,  H04N19/134 ,  H04N19/137 ,  H04N19/147 ,  H04N19/154 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/179 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625 ,  H04N19/91

Abstract: An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.

公开(公告)号：US09774862B2

公开(公告)日：2017-09-26

申请号：US14741705

申请日：2015-06-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woo-shik Kim ,  Dae-sung Cho ,  Shi-hwa Lee ,  Sang-wook Kim

IPC: H04N7/18 ,  H04N19/13 ,  G06T9/00 ,  H04N19/147 ,  H04N19/46 ,  H04N19/61 ,  H04N19/60 ,  H04N19/124 ,  H04N19/126 ,  H04N19/154 ,  H04N19/174 ,  H04N19/17 ,  H04N19/179 ,  H04N19/176 ,  H04N19/91 ,  H04N19/134 ,  H04N19/137 ,  H04N19/44 ,  H04N19/625

CPC classification number: H04N19/13 ,  G06T9/005 ,  H04N19/124 ,  H04N19/126 ,  H04N19/134 ,  H04N19/137 ,  H04N19/147 ,  H04N19/154 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/179 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625 ,  H04N19/91

Abstract: An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.

公开(公告)号：US09674541B2

公开(公告)日：2017-06-06

申请号：US14518205

申请日：2014-10-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dae-sung Cho ,  Hyun-mun Kim ,  Woo-shik Kim ,  Dmitri Birinov

IPC: H04N7/12 ,  H04N19/44 ,  H04N19/176 ,  H04N19/70 ,  H04N19/147 ,  H04N19/46 ,  H04N19/196 ,  H04N19/61 ,  H04N19/593 ,  H04N19/11 ,  H04N19/109 ,  H04N19/463 ,  H04N19/91 ,  H04N19/132 ,  H04N19/186 ,  H04N19/18 ,  H04N19/182 ,  H04N19/19 ,  H04N19/80 ,  H04N11/02 ,  H04N11/04 ,  H04N19/136 ,  H04N19/50

CPC classification number: H04N11/042 ,  H04N11/02 ,  H04N19/109 ,  H04N19/11 ,  H04N19/132 ,  H04N19/136 ,  H04N19/147 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/186 ,  H04N19/19 ,  H04N19/196 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/80 ,  H04N19/91

Abstract: A method, medium, and apparatus encoding and/or decoding an image in order to increase encoding and decoding efficiency by performing binary-arithmetic coding/decoding on a binary value of a syntax element using a probability model having the same syntax element probability value for respective context index information of each of at least two image components.

公开(公告)号：US20150281719A1

公开(公告)日：2015-10-01

申请号：US14741693

申请日：2015-06-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woo-shik Kim ,  Dae-sung Cho ,  Shi-hwa Lee ,  Sang-wook Kim

IPC: H04N19/44 ,  H04N19/13 ,  H04N19/147 ,  H04N19/154 ,  H04N19/91 ,  H04N19/176 ,  H04N19/179 ,  H04N19/625 ,  H04N19/61 ,  H04N19/124 ,  H04N19/174

CPC classification number: H04N19/13 ,  G06T9/005 ,  H04N19/124 ,  H04N19/126 ,  H04N19/134 ,  H04N19/137 ,  H04N19/147 ,  H04N19/154 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/179 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625 ,  H04N19/91

Abstract: An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.

公开(公告)号：US09106912B2

公开(公告)日：2015-08-11

申请号：US14628336

申请日：2015-02-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woo-shik Kim ,  Dae-sung Cho ,  Shi-hwa Lee ,  Sang-wook Kim

IPC: H04N7/18 ,  H04N19/124 ,  H04N19/137 ,  H04N19/44

CPC classification number: H04N19/13 ,  G06T9/005 ,  H04N19/124 ,  H04N19/126 ,  H04N19/134 ,  H04N19/137 ,  H04N19/147 ,  H04N19/154 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/179 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625 ,  H04N19/91

Abstract: An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.

公开(公告)号：US20150172675A1

公开(公告)日：2015-06-18

申请号：US14628355

申请日：2015-02-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woo-shik KIM ,  Dae-sung Cho ,  Shi-hwa Lee ,  Sang-wook Kim

IPC: H04N19/137 ,  H04N19/44 ,  H04N19/91 ,  H04N19/124

CPC classification number: H04N19/13 ,  G06T9/005 ,  H04N19/124 ,  H04N19/126 ,  H04N19/134 ,  H04N19/137 ,  H04N19/147 ,  H04N19/154 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/179 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/625 ,  H04N19/91

Abstract: An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.