- 专利标题: Image coding and decoding method and apparatus considering human visual characteristics
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申请号: US11304671申请日: 2005-12-16
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公开(公告)号: US20060093033A1公开(公告)日: 2006-05-04
- 发明人: Woo-shik Kim , Dae-sung Cho , Shi-hwa Lee , Sang-wook Kim
- 申请人: Woo-shik Kim , Dae-sung Cho , Shi-hwa Lee , Sang-wook Kim
- 申请人地址: JP Suwon-si
- 专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人地址: JP Suwon-si
- 优先权: KR2002-602 20020105; KR2002-51883 20020830
- 主分类号: H04N11/04
- IPC分类号: H04N11/04 ; H04B1/66 ; H04N11/02 ; H04N7/12
摘要:
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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