Image processing method, image processing apparatus, MRI...

Details Image processing method, image processing apparatus, MRI... Image processing method, image processing apparatus, MRI...

2006-05-09

2006-05-09

Dastouri, Mehrdad (Department: 2623)

Image analysis

Applications

Biomedical applications

Reexamination Certificate

active

07043065

ABSTRACT:
For the purpose of accurately calculating the average value M of original complex observed signals S from an absolute-value image produced by the complex observed signals S, in Step A1, the average value Ma of pixel values |S| of the absolute-value image in a local region is calculated by:in-line-formulae description="In-line Formulae" end="lead"?Ma=Σ|S|/k,in-line-formulae description="In-line Formulae" end="tail"?wherein the number of pixels in the local region is represented as k.In Step A2, the average value M of the original complex observed signals S is calculated by the following equation:in-line-formulae description="In-line Formulae" end="lead"?M=α·ƒ−1(Ma/α),in-line-formulae description="In-line Formulae" end="tail"?wherein ƒ−1(Ma/α) is an inverse function of the function Ma/α=ƒ(M/α) represented as:in-line-formulae description="In-line Formulae" end="lead"?Ma/α=∫∫{|M/α+(X+iY)|exp{−(X2+Y2)/2}/2π}dX dY.in-line-formulae description="In-line Formulae" end="tail"?

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