发明名称 |
IMAGE CODING/DECODING METHOD AND APPARATUS |
摘要 |
<p>Provided is a method and apparatus for coding a wavelet transformed image in consideration of the human visual system (HVS) in frequency and spatial domains. A visual weight is generated by calculating the product of a spatial domain weight, which is generated by using a local bandwidth normalized according to the HVS, and a frequency domain weight generated by using an error sensitivity of a subband in a wavelet domain. Wavelet coefficients are coded and transmitted according to a coding order determined on the basis of the generated visual weight, thereby providing an image with improved visual quality at low channel capacity.</p> |
申请公布号 |
EP1987675(A1) |
申请公布日期 |
2008.11.05 |
申请号 |
EP20070709075 |
申请日期 |
2007.02.23 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LEE, SANG-HOON;LEE, HYUNG-KEUK |
分类号 |
H04N7/26 |
主分类号 |
H04N7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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