[Bf-committers] A new photo format

[Lars Krueger]

> On Fri, Jun 24, 2011 at 2:21 AM, Lars Krueger <lars_e_krueger at gmx.de>
> wrote:
> > The camera does not obtain 3d information. Neither does it capture
> sufficient info to compute a depth map.
> Think about this for a second.  The light field allows you to
> determine the focus of an image from near to far.  It is obvious that
> with some linear algebra a quite detailed depth buffer could be
> obtained.  I mean, you could do it by hand just by adjusting the depth
> and tracing the objects in focus.  A little math could do that too and
> I'm almost certain it could do it better.

In theory, you're right. The problem is that your maximal baseline length is the size of  the aperture (Ren Ng, the inventor wrote that in some paper), hence 1 cm at most (f=50 mm, f/8 -> 6.25 mm). That won't give much of a depth resolution even with todays 16 or 20 MP sensors.

-- 
Dr. Lars Krueger


NEU: FreePhone - kostenlos mobil telefonieren!			
Jetzt informieren: http://www.gmx.net/de/go/freephone