Enhancement of angiograms via M-band wavelet transform

被引：0
|
作者：
Yang, Y [1 ]
Zhang, D [1 ]
机构：
[1] Wuhan Univ, Coll Elect & Informat, Wuhan 430072, Peoples R China
来源：
BIOMEDICAL PHOTONICS AND OPTOELECTRONIC IMAGING | 2000年 / 4224卷
关键词：
digital subtraction angiograph (DSA); M-band wavelet transform; directional filtering; edge detection; image enhancement;
D O I：
10.1117/12.403966
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
The paper presents a new approach to enhancing angiograms using M-band wavelet representations. By exploiting directional properties among M-band wavelet coefficients, M-channel directional filters are introduced in the wavelet domain to achieve edge-preserved denosing. Angiograms are then reconstructed from the transform coefficients modified by local enhancement operator based on multiscale edges. The method has lower computational complexity, yet it is capable of giving visually distinct images and offering considerable benefits in medical diagnosis.
引用
收藏
页码：165 / 169
页数：5
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