Image analysis – Applications – Biomedical applications
Reexamination Certificate
2011-06-14
2011-06-14
Mariam, Daniel G (Department: 2624)
Image analysis
Applications
Biomedical applications
C382S130000, C382S134000, C600S407000
Reexamination Certificate
active
07961923
ABSTRACT:
A method for detecting a substantially cylindrical internal structures and dark structures surrounded by bright intensity values (contrast) in a medical image includes acquiring a medical image. A gradient of the medical image is calculated. Local shape index information for the calculated gradient of the medical image is calculated. Gradient information having a local shape index not indicative of a ridge and rut shapes is removed. Diverging gradient field responses (DGFR) are calculated based on the remaining gradient information. The DGFR responses and relative amount of DGFR responses for the rut and ridge areas is used as a discriminative feature in detecting the substantially cylindrical internal structure as well as darker occluding structures within cylindrical structures such as Pulmonary Emboli.
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Periaswamy Senthil
Salganicoff Marcos
Bitar Nancy
Mariam Daniel G
Siemens Medical Solutions USA , Inc.
Withstandley Peter
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