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Method for vessel extraction
专利权人:
发明人:
Mohammed Asmatullah Khan
申请号:
US14590595
公开号:
US09275455B1
申请日:
2015.01.06
申请国别(地区):
US
年份:
2016
代理人:
摘要:
A method for improving the detection of low-contrast and narrow width vessels comprising combining matched-filter responses with that of directional filter bank. A given vessel is characterized by having an elongated structure with a specific width and direction. Matched filters are designed in the form of elliptical second-order Gaussian derivatives at various scales, catering for vessels of widely varying widths. On the other hand, the directional filter bank helps in identifying the orientation of the vessels. Thus, combining both in complementary manner results is an improved response for vessels with varying width and varying direction. Results comparing this hybrid approach to matched filter and directional filter bank alone show substantial improvements both qualitatively and quantitatively.
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