[Photography-sig] Lightfield camera and Lytro

[Richard Guy Briggs]

On Tue, Oct 25, 2011 at 03:51:17PM -0400, Jeongyun Lee wrote:
> On a photography related note, Lytro announced and demonstrated their
> first lightfield camera. (Mind you there's already another lightfield
> camera on the market since last year.)
> 
> http://www.lytro.com/
> 
> Cool technology. But the end result is going to be 1MP or so.
> And their sample images show little annoying grid pattern when zoomed in.

This sounds like an application of Fourier Optics:
	 http://en.wikipedia.org/wiki/Fourier_optics

And the course I started attending in September:
	http://www.site.uottawa.ca/~thall/Teaching/CourseContent/ELG5106/elg5106.html

Related to Radon and Hough Transforms.  Nifty!

> A DIY lightfield camera.
> http://www.cfar.umd.edu/~aagrawal/sig08/BuildingLightFieldCamera.html
> This one uses pinhole mask while Lytro uses microlenses of different
> focus distances.
> 
> On Tue, Oct 25, 2011 at 11:42 AM, Richard Guy Briggs <rgb at tricolour.net> wrote:
> > Hi folks,
> >
> > This is a very interesting link a friend of mine passed on.  I think he
> > has actually met the guys involved in this project.
> >
> >        http://vimeo.com/20412632
> >
> > It is part of a school of architecture.
> >
> > It attempts to map a wifi field using a LED light stick and a long
> > exposure photo...
> >
> >        slainte mhath, RGB

	slainte mhath, RGB

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