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公开(公告)号:US20180220145A1
公开(公告)日:2018-08-02
申请号:US15938621
申请日:2018-03-28
Applicant: Samsung Electronics Co., Ltd.
Inventor: Hyun Mun KIM , Dae-sung CHO , Woo-shik KIM
IPC: H04N19/44 , H04N19/107 , H04N19/50 , H04N19/182 , H04N19/162 , H04N19/142 , H04N19/184 , H04N19/61 , H04N19/46 , H04N19/176 , H04N19/105 , H04N19/136
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.
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2.
公开(公告)号:US20180139430A1
公开(公告)日:2018-05-17
申请号:US15856506
申请日:2017-12-28
Applicant: Samsung Electronics Co., Ltd.
Inventor: Dae-sung CHO , Hyun-mun KIM , Woo-shik KIM , Dmitri Birinov
IPC: H04N11/04 , H04N11/02 , H04N19/109 , H04N19/80 , H04N19/70 , H04N19/61 , H04N19/593 , H04N19/50 , H04N19/463 , H04N19/46 , H04N19/44 , H04N19/196 , H04N19/19 , H04N19/186 , H04N19/182 , H04N19/18 , H04N19/176 , H04N19/147 , H04N19/136 , H04N19/132 , H04N19/11 , H04N19/91
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.
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3.
公开(公告)号:US20150281723A1
公开(公告)日:2015-10-01
申请号:US14741730
申请日:2015-06-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Woo-shik KIM , Dae-sung CHO , Shih-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.
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4.
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.
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公开(公告)号:US20150281718A1
公开(公告)日:2015-10-01
申请号:US14741691
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 , H04N19/625 , H04N19/61 , 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.
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公开(公告)号:US20150229936A1
公开(公告)日:2015-08-13
申请号:US14666951
申请日:2015-03-24
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Hyun Mun KIM , Dae-sung CHO , Woo-shik KIM
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.
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7.
公开(公告)号:US20150163522A1
公开(公告)日:2015-06-11
申请号:US14615801
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: H04N19/91 , H04N19/60 , 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.
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公开(公告)号:US20150125076A1
公开(公告)日:2015-05-07
申请号:US14598758
申请日:2015-01-16
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Woo-shik KIM , Hyun-mun KIM , Dae-sung Cho , Dmitri BIRINOV
IPC: H04N19/186 , H04N19/436 , H04N19/174
CPC classification number: H04N19/186 , H04N19/174 , H04N19/436 , H04N19/70
Abstract: An encoding method, medium, and system encoding an image, with an image being encoded by generating a plurality of image slices as images of each color component of the image and encoding the image slices in parallel with each other and independently of each other. Accordingly, although an image to be encoded has a large number of color components, the image can be compressed promptly. In addition, a decoding method, medium, and system are also provided decoding an image, with a plurality of encoded image slices being included in a corresponding bitstream, which are images of each color component of the image to be restored, are decoded in parallel with each other and independently of each other so as to restore the image using the decoded image slices. Accordingly, although an image to be decoded has a large number of color components, the image can be restored promptly.
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9.
公开(公告)号:US20160021372A1
公开(公告)日:2016-01-21
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: H04N19/13 , H04N19/625 , H04N19/44 , H04N19/124 , 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.
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公开(公告)号:US20150288966A1
公开(公告)日:2015-10-08
申请号:US14741677
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: H04N19/126 , H04N19/46 , H04N19/13 , 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.
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