Image analysis – Applications – Biomedical applications
Reexamination Certificate
2008-02-05
2011-12-13
Yun, Jurie (Department: 2882)
Image analysis
Applications
Biomedical applications
C382S132000
Reexamination Certificate
active
08077953
ABSTRACT:
End-diastolic and end-systolic image frames are automatically selected on a real-time basis from a sequence of X-ray ventricular angiogram images by modeling the angiogram images by a dynamic graphical model and estimating a posterior probability density of the ventricular area in each angiogram image frame using Bayesian probability density propagation and adaptive background modeling. Then, a variation curve plot of expectation values of the posterior probability density of the ventricular area of each angiogram image frame is generated in which peaks and valleys in the variation curve correspond to end-diastolic and end-systolic angiogram image frames, respectively.
REFERENCES:
patent: 6045512 (2000-04-01), Roteliuk et al.
Oost et al., “Automated Contour Detection in X-Ray Left Ventricular Angiograms Using Multiview Active Appearance Models and Dynamic Programming”, IEEE Transactions on Medical Imaging 25, pp. 1158-1171, Sep. 2006.
Arulampalam et al., “A Tutorial on Particle Filters for Online Nonlinear/Non-Gaussian Bayesian Tracking”, IEEE Trans. Signal Processing 50, pp. 174-188, Feb. 2002.
Keller Michael J.
Qu Wei
Singh Sukhveer
Burke Alexander J
Siemens Medical Solutions USA , Inc.
Yun Jurie
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