发明名称 |
Multiscale adaptive system for enhancement of an image in X-ray angiography |
摘要 |
A multi-scale approach to enhancement is taken where enhancement masks are generated at different scales and then combined together using a pyramid scheme. Each mask is computed from applying directional sensitive Laplacian kernels, which is responsible for extracting images of low contrast, followed by an adaptive non-linear mapping. This non-linearity is crucial in virtually eliminating edge overshoots. Furthermore, the input image may also be preprocessed by an edge-preserving smoothing filter to reduce the noise effect.
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申请公布号 |
US5963676(A) |
申请公布日期 |
1999.10.05 |
申请号 |
US19970796331 |
申请日期 |
1997.02.07 |
申请人 |
SIEMENS CORPORATE RESEARCH, INC. |
发明人 |
WU, ZHENYU;FANG, MING |
分类号 |
G06T5/00;(IPC1-7):G06K9/40 |
主分类号 |
G06T5/00 |
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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