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：US20150281720A1

公开(公告)日：2015-10-01

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

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：US20150172672A1

公开(公告)日：2015-06-18

申请号：US14628338

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 ,  H04N19/124 ,  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：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.