Talk:Spatial filter

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Here's a start for spatial filter. Someone with professional optics knowledge should add the tech side. Also, no entry for "pinhole" or "aperture plate" is on WP. --Wjbeaty 05:39, 19 January 2006 (UTC)[reply]

On signal processing, a spatial filter for multivariate signals means a filter which use the information of various channels to remove artifact or extract information. It has to be distinguished from standard "frequency" filter (IIR FIR, wavelet, Kalman) which use the various time samples to remove the noise. Spatial filtering is often affiliated to Blind signal separation. — Preceding unsigned comment added by Samuelboudet (talk • contribs) 16:21, 19 July 2012 (UTC)[reply]

That looks like an unrelated concept. Wikipedia articles are organized by concept, not by name. Things which are conceptually distinct but share the same name are covered in separate articles, with navigational aids to help readers find the right article. Things that are the same but are known by different names are all covered together in one article.--Srleffler (talk) 01:24, 20 July 2012 (UTC)[reply]

I agree with the earlier comment that "spatial filtering" is often used more broadly than this optics device. The article on Beamforming links back to this page (as I think it should, I have definitely heard of beamforming described as "spatial filtering"), yet this page in its present state has little to do with combining signals from receivers situated in space to achieve directional selectivity. This was jarring enough to actually prompt me to create a Wikipedia account! I'm not sure how to fix the situation though - should there at least be a "See also" link to Beamforming? --Rosnfeld (talk) 14:55, 29 July 2012 (UTC)[reply]