Fwd: Lytro and PTM/RTIs (from Taylor Bennett)

[Dennis Piechota]

Here is the second (and final) post I prematurely deleted from Taylor. I won't do that again!

Dennis

---------- Forwarded message ----------
From: Taylor Bennett <taylorb...@gmail.com>
Date: Wed, Mar 27, 2013 at 3:19 PM
Subject: Re: Lytro and PTM/RTIs
To: rti_...@googlegroups.com
Cc: RTI_...@googlegroups.com, dennis....@umb.edu


I noticed that Tom Malzbender had demonstrated the re-focusing of a scene in PTMViewer using only 6 images to generate the .ptm file.  I posted a question about how to do it at CHI's forum, here:
http://forums.culturalheritageimaging.org/index.php?/topic/234-re-focusing-ptm-files/

It would be great to be able to do this for viewing macro-RTIs of objects with a lot of relief, since the depth of field in macros is generally very thin and getting a good focus on different levels of the surface is difficult.  I wonder if this capability can be built in to the new RTIViewer that's being developed?

Best,
Taylor


On Friday, March 9, 2012 12:08:31 PM UTC-8, Dennis Piechota wrote:

The new light field camera, Lytro, that allows refocusing AFTER the shot has been taken apparently uses onboard software that interprets surfaces normals.  It would be great to have relightable AND refocusable RTIs and PTMs but I don't imagine its proprietary formula (.lfp) will work well with RTI Builder!

See this for a quick commentary on the camera:

http://www.zdnet.com/blog/digitalcameras/lytro-begins-shipping-light-field-camerajust-an-expensive-toy/5634?tag=nl.e539

And this earlier more informative article:

http://www.zdnet.com/blog/digitalcameras/lytro-light-field-camera-lets-you-focus-after-taking-your-shot/5328?tag=content;siu-container

Dennis Piechota

Fiske Center for Archaeological Research
UMass Boston
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