Invention Grant
- Patent Title: Image coding and decoding method and apparatus considering human visual characteristics
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Application No.: US14741681Application Date: 2015-06-17
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Publication No.: US09774861B2Publication Date: 2017-09-26
- Inventor: Woo-shik Kim , Dae-sung Cho , Shi-hwa Lee , Sang-wook Kim
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si
- Agency: Staas & Halsey LLP
- Priority: KR10-2002-0000602 20020105; KR10-2002-0051883 20020830
- Main IPC: H04N7/18
- 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

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.
Public/Granted literature
- US20150281694A1 IMAGE CODING AND DECODING METHOD AND APPARATUS CONSIDERING HUMAN VISUAL CHARACTERISTICS Public/Granted day:2015-10-01
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