发明名称 |
Improved method for subband coding images and device for implementing said method |
摘要 |
<p>This technique for coding images involves filtering the original input image into subband images using successive high-pass and low-pass filterings over a tree-shaped filter with each tree filtering stage involving re-scaling operations adjusted to keep the subband image signal dynamics substantially stable throughout the filtering tree. <IMAGE></p> |
申请公布号 |
EP0522219(B1) |
申请公布日期 |
1997.10.15 |
申请号 |
EP19910480104 |
申请日期 |
1991.07.11 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
GALAND, CLAUDE;LANCON, EMMANUEL;FURLAN, GILBERT;MENEZ, JEAN |
分类号 |
G06T9/00;H04N7/26;H04N7/34;(IPC1-7):H04N7/24 |
主分类号 |
G06T9/00 |
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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