Register  |  FAQ  |  Search  |  Memberlist  |  Usergroups  |  Log in 
Reply to topic
 Variable DOF with new single exposure camera - Info 
richardrosenman
Site Admin

Joined: 23 Oct 2005
Posts: 145
Location: Canada
Reply with quote
"This paper presents a camera that samples the 4D light field on its sensor in a single photographic exposure. This is achieved by inserting a microlens array between the sensor and main lens, creating a plenoptic camera. Each microlens measures not just the total amount of light deposited at that location, but how much light arrives along each ray. By re-sorting the measured rays of light to where they would have terminated in slightly different, synthetic cameras, we can compute sharp photographs focused at different depths. We show that a linear increase in the resolution of images under each microlens results in a linear increase in the sharpness of the refocused photographs. This property allows us to extend the depth of field of the camera without reducing the aperture, enabling shorter exposures and lower image noise. Especially in the macrophotography regime, we demonstrate that we can also compute synthetic photographs from a range of different viewpoints. These capabilities argue for a different strategy in designing photographic imaging systems." - Ren Ng, 2004-2005.

http://graphics.stanford.edu/papers/lfcamera/

-Richard

_________________
Richard Rosenman
DOF PRO Developer
Digital Animation Director
http://www.dofpro.com
http://www.mblpro.com
http://www.cgsphere.com
http://www.hatchstudios.net
http://www.lumierefilter.com
http://www.richardrosenman.com
View user's profile Send private message Visit poster's website
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
All times are GMT - 4 Hours  
Page 1 of 1  

  
  
 Reply to topic