Method for evaluating an image dataset acquired by a...

Details Method for evaluating an image dataset acquired by a... Method for evaluating an image dataset acquired by a...

2009-03-12

2011-10-18

Hannaher, Constantine (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

C250S369000, C378S004000, C378S021000

Reexamination Certificate

active

08039804

ABSTRACT:
The invention relates to a method for evaluating an image dataset obtained by a radiation-based image acquisition device. A scatter background dataset is determined as a function of the image data. The image dataset is corrected pixel by pixel by multiplying the image dataset with the inverse of a function dependent on the quotient of the scatter background data and the image data at a respective pixel. The function is a nonlinear, smooth function determined by a coefficient and having positive derivatives. The absolute value of the function is one for the value zero. The image acquisition parameter dependent coefficient is determined by an optimization process.

REFERENCES:
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patent: 6804325 (2004-10-01), Smith
patent: 10 2006 040 852 (2008-03-01), None
M. Zellerhoff, B. Scholz, E.-P. Rührnschopf, T. Brunner; “Low contrast 3D reconstruction from C-arm data”, Proceedings of SPIE, Medical Imaging 2005, vol. 5745, pp. 646-655.

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