Talk:Point spread function: Difference between revisions

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Here, "3D" is not in the sense of [[Stereoscopy]], which is a (subjective) optical effect. Fluorescence microscopy really registers three [[dimension]]al distributions. [[User:Default007|Default007]] 08:31, 30 January 2006 (UTC)

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<blockquote>the image formation process is linear in power and described by linear system theory. This means that when two objects A and B are imaged simultaneously, the result is equal to the sum of the independently imaged objects. In other words: the imaging of A is unaffected by the imaging of B and vice versa, ''owing to the non-interacting property of photons''.</blockquote>

Since photons have been scientifically been [[Double-slit experiment|proven to interact]], the explanatory conclusion is outdated.

Thus, my question is: what has been attempted to be explained with the 'other words'? <span style="font-size: smaller;" class="autosigned">— Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/87.209.29.90|87.209.29.90]] ([[User talk:87.209.29.90|talk]]) 22:10, 26 November 2011 (UTC)</span><!-- Template:Unsigned IP --> <!--Autosigned by SineBot-->

[[Special:Contributions/Kenneyw|Kenneyw]] ([[User talk:Kenneyw|talk]])

22:10, 26 November 2011 (UTC)

^ That is wave-form of photons. I think the OP was talking about interference but then summing A and B would not keep OP's last line true. <span style="font-size: smaller;" class="autosigned">— Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/24.190.232.94|24.190.232.94]] ([[User talk:24.190.232.94|talk]]) 08:36, 16 February 2012 (UTC)</span><!-- Template:Unsigned IP --> <!--Autosigned by SineBot-->

== Motion-blur Correction ==

I leave it to other editors to decide if this is noteworthy, but Adobe says they implement a PSF to help in correction of motion-blurred images [http://www.youtube.com/watch?v=XLLJBfRzXIQ as demonstrated here], although the details are limited. [[User:Nakomaru|nakomaru]] ([[User talk:Nakomaru|talk]]) 23:47, 5 October 2012 (UTC)

== Theory Discuss ==

I like the argument presented here: The FT of a uniformly illuminated circle creates an airy disc, therefor the FT of an airy disc is a uniformly illuminated circle. However, in this discussion there is the term: kr tan(Θmax), but I believe it should be kr sin(Θmax) to match what the FT of a circle aperature is. Is there a reference for the expression of kr tan(Θmax) used in this article? [[User:Maqifrnswa|Maqifrnswa]] ([[User talk:Maqifrnswa|talk]]) 04:57, 16 March 2013 (UTC)

== Theory: explanation of θ_max,r required ==

I think adding a ray diagram explaining terms like '''θ_max''' and '''r''' will be more helpful in understanding the process of partial interception of spherical wave field by lens. For example, '''r''' described as "..r is radial distance in the image plane.." does not clarify which radial distance has been mentioned here. <span style="font-size: smaller;" class="autosigned">— Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/59.185.236.53|59.185.236.53]] ([[User talk:59.185.236.53|talk]]) 11:25, 27 April 2013 (UTC)</span><!-- Template:Unsigned IP --> <!--Autosigned by SineBot-->

== Airy Function equal to J1(x)/x? ==

Can you either provide a reference for this statement:

" In addition, a uniform function over a circular area (in one FT ___domain) corresponds to the Airy function, J1(x)/x in the other FT ___domain, where J1(x) is the first-order Bessel function of the first kind. "

or correct it? Airy function is not quite what you say it is...

[[User:Clejan|Clejan]] ([[User talk:Clejan|talk]]) 18:25, 31 March 2014 (UTC)

== Introduction ==

This does not have a sufficient introduction. At the very least it should state that the PSF is light intensity as a function of 2D position on a plane. [[Special:Contributions/107.167.244.42|107.167.244.42]] ([[User talk:107.167.244.42|talk]]) 01:00, 25 March 2022 (UTC)

== Figure typo ==

There is a typo in figure 3: "Application of PSF: Deconvolution of the mathematically modeled PSF and the low-resolution image enhances the resolution.". The asterisk is labeled "Devonvolution" when it should be "Deconvolution"