发明名称 |
HIGH SPEED DISCRETE WAVELET TRANSFORMER(DWT) CAPABLE OF FASTLY ENCODING STILL IMAGE BASED ON ENERGY BY BLOCK AND METHOD THEREOF |
摘要 |
A fast discrete wavelet encoding apparatus and method for encoding and decoding a still image are provided. In the fast discrete wavelet encoding apparatus, an energy calculator calculates the energy of an input image, block by block, each block having a predetermined number of pixels, an adaptive image decomposer determines a lifting transform level for each block adaptively according to the energy of the block, and a lifting encoder lifting encodes the input image according to the lifting transform levels determined for the blocks of the image. |
申请公布号 |
KR20050056671(A) |
申请公布日期 |
2005.06.16 |
申请号 |
KR20030089715 |
申请日期 |
2003.12.10 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LEE, HYUN SEUNG;KIM, DAE WON |
分类号 |
H04N1/41;G06K9/36;H04N7/26;H04N7/46;(IPC1-7):H04N1/41 |
主分类号 |
H04N1/41 |
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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