this is for holding javascript data
Ayan Sengupta edited Methods_cont.tex
over 9 years ago
Commit id: 61015e6e02fb40862c0e028b9c015a6f41e4a2ac
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where \(|I|\) is the magnitude part and \(\phi\) is the phase component of the image. The phase image conveys several important information like field inhomogeniety, venous blood flow etc. But extracting the phase image from the measured complex image is non-trivial, because the any phase component beyond the range of \(-(\pi, \pi]\) is wrapped back into the principal value range. So when the phase image is generated from the scanner it undergoes the \textit{Phase Wrapping} process, as mentioned above. The phase image provided here is in true sense a phase wrapped image in which the \textit{Wrapped Phase} is defined as:
\[
I \psi =
|I|*exp(\phi)W(i) W(\phi)
\]