公开(公告)号：US09774859B2

公开(公告)日：2017-09-26

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: 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：US09774857B2

公开(公告)日：2017-09-26

申请号：US14615816

申请日：2015-02-06

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：US09706216B2

公开(公告)日：2017-07-11

申请号：US14671648

申请日：2015-03-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyun Mun Kim ,  Dae-sung Cho ,  Woo-shik Kim

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/44 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/107 ,  H04N19/136 ,  H04N19/142 ,  H04N19/162 ,  H04N19/182 ,  H04N19/50 ,  H04N19/184

CPC classification number: H04N19/44 ,  H04N19/105 ,  H04N19/107 ,  H04N19/136 ,  H04N19/142 ,  H04N19/162 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184 ,  H04N19/46 ,  H04N19/50 ,  H04N19/61

Abstract: An image encoding and decoding apparatus and method, the image encoding and decoding apparatus includes: an encoding unit adjusting at least one weight value adaptively to the number of bits expressing each pixel of a current image, predicting a pixel value of a block of interest by performing an operation on a pixel value of at least one block having a pixel value similar to the pixel value of the block of interest among blocks included in a previous image and the at least one adjusted weight value, and encoding the pixel value of the block of interest using the predicted pixel value of the block of interest; and a decoding unit adjusting the at least one weight value adaptively to the number of bits, restoring the predicted pixel value of the block of interest by performing an operation on the pixel value of the at least one block having the pixel value similar to the pixel value of the block of interest among blocks included in the restored previous image and the at least one adjusted weight value, and decoding the pixel value of the block of interest using the restored pixel value, wherein the previous image refers to an image displayed prior to a current image, and the block of interest is a target block of interest among blocks belonging to the current image.

公开(公告)号：US20170134705A9

公开(公告)日：2017-05-11

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: H04N11/04 ,  H04N11/02

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：US09414075B2

公开(公告)日：2016-08-09

申请号：US14741716

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: H04N19/137 ,  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 ,  H04N19/44 ,  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：US20150281722A1

公开(公告)日：2015-10-01

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: H04N19/44 ,  H04N19/13 ,  H04N19/147 ,  H04N19/154 ,  H04N19/91 ,  H04N19/176 ,  H04N19/179 ,  H04N19/61 ,  H04N19/625 ,  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：US20150281721A1

公开(公告)日：2015-10-01

申请号：US14741716

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 ,  H04N19/61 ,  H04N19/625 ,  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：US20150172659A1

公开(公告)日：2015-06-18

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: H04N19/124 ,  H04N19/44 ,  H04N19/137

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：US20150043654A1

公开(公告)日：2015-02-12

申请号：US14522079

申请日：2014-10-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/13

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.