Re: phase from Array.fourier()

Posted by Jacob Keller-2 on Dec 07, 2016; 11:22pm
URL: http://imagej.273.s1.nabble.com/Re-phase-from-Array-fourier-tp5017715p5017716.html

Jay Unruh from Stowers has a plugin that does just what you want--you can
get those even in the updating website choices in IJ. It's called something
like stack.temporal.FFT or similar, then follow that by complex.amp or
complex.phase to extract what you want from the complex stack. He has Excel
sheets describing all of the plugins. There is also a graphical description
of the plugin in the supplemental of this paper:

http://dx.doi.org/10.1016/j.molcel.2016.09.001

Jacob Keller

On Wed, Dec 7, 2016 at 6:08 PM, Damon Poburko <[hidden email]> wrote:

> Hi all,
>
>    I am trying to examine Ca2+ oscillations in time lapse images of
> cultured cells, specifically looking at the degree to which oscillations in
> neighbouring cells are synchronized. I have been able to use the
> Array.fourier() function to automate the analysis of the oscillation
> frequency (and ampltidue... I think).
>
>     Is it possible to get the phase data from the Array.fourier() function
> somehow, or could the function be modified to get this information?
>
> Thanks,
> Damon
>
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