公开(公告)号：US20180084258A1

公开(公告)日：2018-03-22

申请号：US15829073

申请日：2017-12-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woo-shik KIM ,  Chang-yeong KIM ,  Yang-seock SEO

IPC: H04N19/159 ,  H04N19/11 ,  H04N19/122 ,  H04N19/105 ,  H04N19/182 ,  H04N19/184 ,  H04N19/186 ,  H04N19/176

CPC classification number: H04N19/159 ,  G06T9/004 ,  G06T9/005 ,  H04N19/105 ,  H04N19/11 ,  H04N19/122 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184 ,  H04N19/186 ,  H04N19/44 ,  H04N19/593 ,  H04N19/61

Abstract: A coding method including dividing pixels of a chrominance component of an input image into blocks having a predetermined size; selecting one among a direct current prediction method, a vertical prediction method, a horizontal prediction method, and a hybrid prediction method according to a user's input; generating a prediction value of each pixel in a current block to be predictively coded, using at least one pixel value among pixel values in an upper reference block adjacent to the current block and in a side reference block adjacent to the current block, according to the selected prediction method; generating a differential value between the prediction value and a corresponding real pixel value in the current block; and coding the differential value and information on the selected prediction method using a predetermined coding method.

公开(公告)号：US20160142734A1

公开(公告)日：2016-05-19

申请号：US15003275

申请日：2016-01-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woo-shik KIM ,  Chang-yeong KIM ,  Yang-seock SEO

IPC: H04N19/593 ,  H04N19/176 ,  H04N19/44

CPC classification number: H04N19/159 ,  G06T9/004 ,  G06T9/005 ,  H04N19/105 ,  H04N19/11 ,  H04N19/122 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184 ,  H04N19/186 ,  H04N19/44 ,  H04N19/593 ,  H04N19/61

Abstract: A coding method including dividing pixels of a chrominance component of an input image into blocks having a predetermined size; selecting one among a direct current prediction method, a vertical prediction method, a horizontal prediction method, and a hybrid prediction method according to a user's input; generating a prediction value of each pixel in a current block to be predictively coded, using at least one pixel value among pixel values in an upper reference block adjacent to the current block and in a side reference block adjacent to the current block, according to the selected prediction method; generating a differential value between the prediction value and a corresponding real pixel value in the current block; and coding the differential value and information on the selected prediction method using a predetermined coding method.

公开(公告)号：US20150281694A1

公开(公告)日：2015-10-01

申请号：US14741681

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: H04N19/124 ,  H04N19/179 ,  H04N19/13 ,  H04N19/154 ,  H04N19/91 ,  H04N19/44 ,  H04N19/174 ,  H04N19/625 ,  H04N19/61 ,  H04N19/17 ,  H04N19/147

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：US20150249836A1

公开(公告)日：2015-09-03

申请号：US14656121

申请日：2015-03-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dae-sung CHO ,  Hyun-mun KIM ,  Woo-shik KIM ,  Dmitri Birinov

IPC: H04N19/44 ,  H04N19/136 ,  H04N19/176 ,  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：US20150229922A1

公开(公告)日：2015-08-13

申请号：US14692289

申请日：2015-04-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woo-shik KIM ,  Hyun-mun Kim ,  Dae-sung Cho ,  Dmitri Birinov ,  Dae-Hee Kim ,  Woong-il Choi

IPC: H04N19/11 ,  H04N19/186 ,  H04N19/176 ,  H04N19/593

CPC classification number: H04N19/136 ,  G06T9/007 ,  H04N19/103 ,  H04N19/109 ,  H04N19/11 ,  H04N19/147 ,  H04N19/15 ,  H04N19/176 ,  H04N19/186 ,  H04N19/19 ,  H04N19/50 ,  H04N19/593 ,  H04N19/61

Abstract: A method, medium, and system encoding and/or decoding a moving picture. The moving picture encoding method may include selecting a prediction mode that is optimal for the macro blocks, which correspond to each other, of the color components of a current image based on the characteristics of a predetermined image, generating a predicted image for the current image according to the selected prediction mode, and encoding a moving picture using the predicted image. An optimal prediction mode can be adaptively applied to the macro blocks, which correspond to each other, of the color components, thereby increasing the moving picture's encoding and decoding efficiencies.

公开(公告)号：US20150229920A1

公开(公告)日：2015-08-13

申请号：US14692264

申请日：2015-04-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woo-shik KIM ,  Hyun-mun Kim ,  Dae-sung Cho ,  Dmitri Birinov ,  Dae-hee Kim ,  Woong-il Choi

IPC: H04N19/103 ,  H04N19/176 ,  H04N19/186 ,  H04N19/50

CPC classification number: H04N19/136 ,  G06T9/007 ,  H04N19/103 ,  H04N19/109 ,  H04N19/11 ,  H04N19/147 ,  H04N19/15 ,  H04N19/176 ,  H04N19/186 ,  H04N19/19 ,  H04N19/50 ,  H04N19/593 ,  H04N19/61

Abstract: A method, medium, and system encoding and/or decoding a moving picture. The moving picture encoding method may include selecting a prediction mode that is optimal for the macro blocks, which correspond to each other, of the color components of a current image based on the characteristics of a predetermined image, generating a predicted image for the current image according to the selected prediction mode, and encoding a moving picture using the predicted image. An optimal prediction mode can be adaptively applied to the macro blocks, which correspond to each other, of the color components, thereby increasing the moving picture's encoding and decoding efficiencies.

Abstract translation: 一种方法，媒体和系统编码和/或解码运动图像。 运动图像编码方法可以包括基于预定图像的特性来选择对于当前图像的颜色分量彼此对应的宏块最佳的预测模式，生成当前图像的预测图像 根据所选择的预测模式，并使用预测图像对运动图像进行编码。 可以将最佳预测模式自适应地应用于彼此对应的颜色分量的宏块，从而增加运动图像的编码和解码效率。

公开(公告)号：US20150208073A1

公开(公告)日：2015-07-23

申请号：US14674804

申请日：2015-03-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyun Mun KIM ,  Dae-sung CHO ,  Woo-shik KIM

IPC: H04N19/182 ,  H04N19/184 ,  H04N19/50

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：US20150201208A1

公开(公告)日：2015-07-16

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: H04N19/50 ,  H04N19/107 ,  H04N19/136 ,  H04N19/105 ,  H04N19/162 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/182 ,  H04N19/142

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：US20150172674A1

公开(公告)日：2015-06-18

申请号：US14628350

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 ,  H04N19/91 ,  H04N19/44 ,  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.

公开(公告)号：US20150156493A1

公开(公告)日：2015-06-04

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: H04N19/126 ,  H04N19/60 ,  H04N19/91 ,  H04N19/176

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.