Re:Imaging Without Lenses
by robbystk on Monday February 05, 2018 @12:27PM
(#16310323)
You can do deconvolution using ImageJ, but getting a model of the PSF for an arbitrary aperture is the tricky part. https://imagej.net/Deconvolution
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Re:Imaging Without Lenses
by michrassena on Monday February 05, 2018 @02:27PM
(#16311295)
Would it be as simple as imaging a point with the system and using that as the source for the PSF?
more or less; the flatcam paper has a section on the calibration method (finding the psf)
Re:Imaging Without Lenses
by michrassena on Monday February 05, 2018 @04:00PM
(#16312138)
In this article, they talk about encoded blur.
http://web.media.mit.edu/~raskar/Mask/
About halfway down the page you can see the out-of-focus point source looks identical to the coded aperture.
While not lensless photography, this seems like a good starting point for those interested in these techniques, especially if I can load the PSF into ImageJ.