Image analysis – Applications – Biomedical applications
Reexamination Certificate
2005-04-26
2005-04-26
Mehta, Bhavesh M. (Department: 2625)
Image analysis
Applications
Biomedical applications
C382S264000, C324S310000, C378S023000
Reexamination Certificate
active
06885762
ABSTRACT:
The invention provides novel scale-based filtering methods that use local structure size or “object scale” information to arrest smoothing around fine structures and across even low-gradient boundaries. One method teaches a weighted average over a scale-dependent neighborhood; while another employs scale-dependent diffusion conductance to perform filtering. Both methods adaptively modify the degree of filtering at any image location depending on local object scale. This permits a restricted homogeneity parameter to be accurately used for filtering in regions with fine details and in the vicinity of boundaries, while at the same time, a generous filtering parameter is used in the interiors of homogeneous regions.
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Saha Punam Kumar
Udupa Jayaram K.
Azarian Seyed
Drinker Biddle & Reath LLP
McConathy Evelyn H.
Mehta Bhavesh M.
Trustees of the University of Pennsylvania
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